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Springer, 2019. https://doi.org/10.1007/978-3-030-11072-7\\_13.","bibtex":"@inbook{Kling_Meyer auf der Heide_2019, series={Lecture Notes in Computer Science}, title={Continuous Protocols for Swarm Robotics}, volume={11340}, DOI={10.1007/978-3-030-11072-7\\_13}, booktitle={Distributed Computing by Mobile Entities, Current Research in Moving and Computing}, publisher={Springer}, author={Kling, Peter and Meyer auf der Heide, Friedhelm}, year={2019}, pages={317–334}, collection={Lecture Notes in Computer Science} }","mla":"Kling, Peter, and Friedhelm Meyer auf der Heide. “Continuous Protocols for Swarm Robotics.” Distributed Computing by Mobile Entities, Current Research in Moving and Computing, vol. 11340, Springer, 2019, pp. 317–34, doi:10.1007/978-3-030-11072-7\\_13."},"type":"book_chapter","year":"2019","page":"317-334","language":[{"iso":"eng"}],"series_title":"Lecture Notes in Computer Science","doi":"10.1007/978-3-030-11072-7\\_13","intvolume":" 11340","_id":"13939","date_updated":"2022-01-06T06:51:47Z"},{"language":[{"iso":"eng"}],"page":"315-321","year":"2019","type":"conference","citation":{"mla":"Markarian, Christine, and Friedhelm Meyer auf der Heide. “Online Algorithms for Leasing Vertex Cover and Leasing Non-Metric Facility Location.” Proceedings of the 8th International Conference on Operations Research and Enterprise Systems, SciTePress, 2019, pp. 315–21, doi:10.5220/0007369503150321.","bibtex":"@inproceedings{Markarian_Meyer auf der Heide_2019, title={Online Algorithms for Leasing Vertex Cover and Leasing Non-metric Facility Location}, DOI={10.5220/0007369503150321}, booktitle={Proceedings of the 8th International Conference on Operations Research and Enterprise Systems}, publisher={SciTePress}, author={Markarian, Christine and Meyer auf der Heide, Friedhelm}, year={2019}, pages={315–321} }","apa":"Markarian, C., & Meyer auf der Heide, F. (2019). Online Algorithms for Leasing Vertex Cover and Leasing Non-metric Facility Location. In Proceedings of the 8th International Conference on Operations Research and Enterprise Systems (pp. 315–321). SciTePress. https://doi.org/10.5220/0007369503150321","ama":"Markarian C, Meyer auf der Heide F. Online Algorithms for Leasing Vertex Cover and Leasing Non-metric Facility Location. In: Proceedings of the 8th International Conference on Operations Research and Enterprise Systems. SciTePress; 2019:315-321. doi:10.5220/0007369503150321","chicago":"Markarian, Christine, and Friedhelm Meyer auf der Heide. “Online Algorithms for Leasing Vertex Cover and Leasing Non-Metric Facility Location.” In Proceedings of the 8th International Conference on Operations Research and Enterprise Systems, 315–21. SciTePress, 2019. https://doi.org/10.5220/0007369503150321.","ieee":"C. Markarian and F. Meyer auf der Heide, “Online Algorithms for Leasing Vertex Cover and Leasing Non-metric Facility Location,” in Proceedings of the 8th International Conference on Operations Research and Enterprise Systems, 2019, pp. 315–321.","short":"C. Markarian, F. Meyer auf der Heide, in: Proceedings of the 8th International Conference on Operations Research and Enterprise Systems, SciTePress, 2019, pp. 315–321."},"_id":"13942","date_updated":"2022-01-06T06:51:47Z","doi":"10.5220/0007369503150321","department":[{"_id":"63"}],"publication":"Proceedings of the 8th International Conference on Operations Research and Enterprise Systems","publisher":"SciTePress","author":[{"full_name":"Markarian, Christine","first_name":"Christine","id":"37612","last_name":"Markarian"},{"first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","id":"15523"}],"date_created":"2019-10-21T13:42:50Z","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"status":"public","user_id":"477","title":"Online Algorithms for Leasing Vertex Cover and Leasing Non-metric Facility Location"},{"doi":"10.1016/j.tcs.2018.11.006","date_updated":"2022-01-06T06:51:48Z","_id":"13946","intvolume":" 786","language":[{"iso":"eng"}],"type":"journal_article","citation":{"short":"F.N. Abu-Khzam, S. Li, C. Markarian, F. Meyer auf der Heide, P. Podlipyan, Theoretical Computer Science 786 (2019) 2–12.","ieee":"F. N. Abu-Khzam, S. Li, C. Markarian, F. Meyer auf der Heide, and P. Podlipyan, “Efficient parallel algorithms for parameterized problems,” Theoretical Computer Science, vol. 786, pp. 2–12, 2019.","chicago":"Abu-Khzam, Faisal N., Shouwei Li, Christine Markarian, Friedhelm Meyer auf der Heide, and Pavel Podlipyan. “Efficient Parallel Algorithms for Parameterized Problems.” Theoretical Computer Science 786 (2019): 2–12. https://doi.org/10.1016/j.tcs.2018.11.006.","apa":"Abu-Khzam, F. N., Li, S., Markarian, C., Meyer auf der Heide, F., & Podlipyan, P. (2019). Efficient parallel algorithms for parameterized problems. Theoretical Computer Science, 786, 2–12. https://doi.org/10.1016/j.tcs.2018.11.006","ama":"Abu-Khzam FN, Li S, Markarian C, Meyer auf der Heide F, Podlipyan P. Efficient parallel algorithms for parameterized problems. Theoretical Computer Science. 2019;786:2-12. doi:10.1016/j.tcs.2018.11.006","bibtex":"@article{Abu-Khzam_Li_Markarian_Meyer auf der Heide_Podlipyan_2019, title={Efficient parallel algorithms for parameterized problems}, volume={786}, DOI={10.1016/j.tcs.2018.11.006}, journal={Theoretical Computer Science}, author={Abu-Khzam, Faisal N. and Li, Shouwei and Markarian, Christine and Meyer auf der Heide, Friedhelm and Podlipyan, Pavel}, year={2019}, pages={2–12} }","mla":"Abu-Khzam, Faisal N., et al. “Efficient Parallel Algorithms for Parameterized Problems.” Theoretical Computer Science, vol. 786, 2019, pp. 2–12, doi:10.1016/j.tcs.2018.11.006."},"year":"2019","page":"2-12","user_id":"15415","title":"Efficient parallel algorithms for parameterized problems","status":"public","date_created":"2019-10-21T13:57:06Z","project":[{"_id":"1","name":"SFB 901"},{"_id":"5","name":"SFB 901 - Subproject A1"},{"name":"SFB 901 - Project Area A","_id":"2"}],"volume":786,"author":[{"first_name":"Faisal N.","full_name":"Abu-Khzam, Faisal N.","last_name":"Abu-Khzam"},{"last_name":"Li","first_name":"Shouwei","full_name":"Li, Shouwei"},{"first_name":"Christine","full_name":"Markarian, Christine","last_name":"Markarian","id":"37612"},{"last_name":"Meyer auf der Heide","id":"15523","first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm"},{"last_name":"Podlipyan","first_name":"Pavel","full_name":"Podlipyan, Pavel"}],"publication":"Theoretical Computer Science","department":[{"_id":"63"}]},{"citation":{"ieee":"J. Castenow, C. Kolb, and C. Scheideler, “A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks,” in Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO), L’Aquila, Italy, 2019, pp. 345–348.","short":"J. Castenow, C. Kolb, C. Scheideler, in: Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO), 2019, pp. 345–348.","bibtex":"@inproceedings{Castenow_Kolb_Scheideler_2019, title={A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks}, DOI={10.1007/978-3-030-24922-9\\_26}, booktitle={Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO)}, author={Castenow, Jannik and Kolb, Christina and Scheideler, Christian}, year={2019}, pages={345–348} }","mla":"Castenow, Jannik, et al. “A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks.” Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO), 2019, pp. 345–48, doi:10.1007/978-3-030-24922-9\\_26.","chicago":"Castenow, Jannik, Christina Kolb, and Christian Scheideler. “A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks.” In Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO), 345–48, 2019. https://doi.org/10.1007/978-3-030-24922-9\\_26.","ama":"Castenow J, Kolb C, Scheideler C. A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks. In: Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO). ; 2019:345-348. doi:10.1007/978-3-030-24922-9\\_26","apa":"Castenow, J., Kolb, C., & Scheideler, C. (2019). A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks. In Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO) (pp. 345–348). L’Aquila, Italy. https://doi.org/10.1007/978-3-030-24922-9\\_26"},"year":"2019","type":"conference","page":"345-348","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:52:00Z","_id":"14539","conference":{"location":"L'Aquila, Italy","start_date":"2019-07-01","name":"SIROCCO 2019","end_date":"2019-07-04"},"doi":"10.1007/978-3-030-24922-9\\_26","author":[{"last_name":"Castenow","id":"38705","first_name":"Jannik","full_name":"Castenow, Jannik"},{"id":"43647","last_name":"Kolb","full_name":"Kolb, Christina","first_name":"Christina"},{"full_name":"Scheideler, Christian","first_name":"Christian","id":"20792","last_name":"Scheideler"}],"department":[{"_id":"79"},{"_id":"63"}],"publication":"Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO)","status":"public","project":[{"name":"SFB 901","_id":"1"},{"_id":"5","name":"SFB 901 - Subproject A1"},{"_id":"2","name":"SFB 901 - Project Area A"}],"date_created":"2019-11-04T10:09:35Z","title":"A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks","user_id":"477"},{"title":" From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation","publication_status":"published","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"name":"SFB 901 - Subproject A3","_id":"7"}],"department":[{"_id":"541"},{"_id":"63"}],"date_updated":"2022-01-06T06:50:33Z","language":[{"iso":"eng"}],"ddc":["004"],"user_id":"477","abstract":[{"text":"Competing firms tend to select similar locations for their stores. This phenomenon, called the principle of minimum differentiation, was captured by Hotelling with a landmark model of spatial competition but is still the object of an ongoing scientific debate. Although consistently observed in practice, many more realistic variants of Hotelling's model fail to support minimum differentiation or do not have pure equilibria at all. In particular, it was recently proven for a generalized model which incorporates negative network externalities and which contains Hotelling's model and classical selfish load balancing as special cases, that the unique equilibria do not adhere to minimum differentiation. Furthermore, it was shown that for a significant parameter range pure equilibria do not exist. We derive a sharp contrast to these previous results by investigating Hotelling's model with negative network externalities from an entirely new angle: approximate pure subgame perfect equilibria. This approach allows us to prove analytically and via agent-based simulations that approximate equilibria having good approximation guarantees and that adhere to minimum differentiation exist for the full parameter range of the model. Moreover, we show that the obtained approximate equilibria have high social welfare.","lang":"eng"}],"status":"public","has_accepted_license":"1","date_created":"2019-06-20T14:46:08Z","publisher":"International Foundation for Autonomous Agents and Multiagent Systems","author":[{"last_name":"Feldotto","id":"14052","first_name":"Matthias","full_name":"Feldotto, Matthias","orcid":"0000-0003-1348-6516"},{"first_name":"Pascal ","full_name":"Lenzner, Pascal ","last_name":"Lenzner"},{"last_name":"Molitor","first_name":"Louise","full_name":"Molitor, Louise"},{"id":"40384","last_name":"Skopalik","full_name":"Skopalik, Alexander","first_name":"Alexander"}],"file_date_updated":"2019-08-26T11:10:02Z","publication":"Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems","file":[{"date_created":"2019-08-26T11:10:02Z","file_name":"1903.04265.pdf","access_level":"closed","creator":"ups","file_id":"12962","file_size":698599,"success":1,"relation":"main_file","content_type":"application/pdf","date_updated":"2019-08-26T11:10:02Z"}],"_id":"10281","conference":{"name":"18th International Conference on Autonomous Agents and MultiAgent Systems","location":"Montreal QC, Canada"},"citation":{"bibtex":"@inproceedings{Feldotto_Lenzner_Molitor_Skopalik_2019, title={ From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation}, booktitle={Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems}, publisher={International Foundation for Autonomous Agents and Multiagent Systems}, author={Feldotto, Matthias and Lenzner, Pascal and Molitor, Louise and Skopalik, Alexander}, year={2019}, pages={1949--1951} }","mla":"Feldotto, Matthias, et al. “ From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation.” Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems, International Foundation for Autonomous Agents and Multiagent Systems, 2019, pp. 1949--1951.","chicago":"Feldotto, Matthias, Pascal Lenzner, Louise Molitor, and Alexander Skopalik. “ From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation.” In Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems, 1949--1951. International Foundation for Autonomous Agents and Multiagent Systems, 2019.","ama":"Feldotto M, Lenzner P, Molitor L, Skopalik A. From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation. In: Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems. International Foundation for Autonomous Agents and Multiagent Systems; 2019:1949--1951.","apa":"Feldotto, M., Lenzner, P., Molitor, L., & Skopalik, A. (2019). From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation. In Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems (pp. 1949--1951). Montreal QC, Canada: International Foundation for Autonomous Agents and Multiagent Systems.","ieee":"M. Feldotto, P. Lenzner, L. Molitor, and A. Skopalik, “ From Hotelling to Load Balancing: Approximation and the Principle of Minimum Differentiation,” in Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems, Montreal QC, Canada, 2019, pp. 1949--1951.","short":"M. Feldotto, P. Lenzner, L. Molitor, A. Skopalik, in: Proceedings of the 18th International Conference on Autonomous Agents and MultiAgent Systems, International Foundation for Autonomous Agents and Multiagent Systems, 2019, pp. 1949--1951."},"year":"2019","type":"conference","page":"1949--1951","main_file_link":[{"url":"https://dl.acm.org/citation.cfm?id=3331973"}]},{"department":[{"_id":"63"}],"author":[{"first_name":"Simon","full_name":"Pukrop, Simon","last_name":"Pukrop"}],"publisher":"Universität Paderborn","project":[{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"date_created":"2019-07-04T07:21:19Z","status":"public","title":"Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine","user_id":"477","year":"2019","citation":{"mla":"Pukrop, Simon. Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine. Universität Paderborn, 2019.","bibtex":"@book{Pukrop_2019, title={Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine}, publisher={Universität Paderborn}, author={Pukrop, Simon}, year={2019} }","apa":"Pukrop, S. (2019). Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine. Universität Paderborn.","ama":"Pukrop S. Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine. Universität Paderborn; 2019.","chicago":"Pukrop, Simon. Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine. Universität Paderborn, 2019.","ieee":"S. Pukrop, Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine. Universität Paderborn, 2019.","short":"S. Pukrop, Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine, Universität Paderborn, 2019."},"type":"mastersthesis","language":[{"iso":"eng"}],"supervisor":[{"first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","id":"15523"}],"date_updated":"2022-01-06T06:50:37Z","_id":"10344"},{"title":"Fully-Dynamic Bin Packing with Little Repacking","place":"Dagstuhl, Germany","external_id":{"arxiv":["1711.01231"]},"project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"4","name":"SFB 901 - Project Area C"},{"name":"SFB 901 - Subproject A1","_id":"5"},{"name":"SFB 901 - Subproject A3","_id":"7"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"editor":[{"last_name":"Chatzigiannakis","full_name":"Chatzigiannakis, Ioannis","first_name":"Ioannis"},{"full_name":"Kaklamanis, Christos","first_name":"Christos","last_name":"Kaklamanis"},{"full_name":"Marx, Dániel","first_name":"Dániel","last_name":"Marx"},{"last_name":"Sannella","first_name":"Donald","full_name":"Sannella, Donald"}],"publication_status":"published","publication_identifier":{"issn":["1868-8969"],"isbn":["978-3-95977-076-7"]},"department":[{"_id":"541"},{"_id":"63"}],"doi":"10.4230/LIPIcs.ICALP.2018.51","date_updated":"2022-01-06T06:56:39Z","language":[{"iso":"eng"}],"series_title":"Leibniz International Proceedings in Informatics (LIPIcs)","user_id":"14052","ddc":["000"],"abstract":[{"text":"We study the classic bin packing problem in a fully-dynamic setting, where new items can arrive and old items may depart. We want algorithms with low asymptotic competitive ratio while repacking items sparingly between updates. Formally, each item i has a movement cost c_i >= 0, and we want to use alpha * OPT bins and incur a movement cost gamma * c_i, either in the worst case, or in an amortized sense, for alpha, gamma as small as possible. We call gamma the recourse of the algorithm. This is motivated by cloud storage applications, where fully-dynamic bin packing models the problem of data backup to minimize the number of disks used, as well as communication incurred in moving file backups between disks. Since the set of files changes over time, we could recompute a solution periodically from scratch, but this would give a high number of disk rewrites, incurring a high energy cost and possible wear and tear of the disks. In this work, we present optimal tradeoffs between number of bins used and number of items repacked, as well as natural extensions of the latter measure.","lang":"eng"}],"status":"public","has_accepted_license":"1","date_created":"2018-04-24T15:21:56Z","volume":107,"file":[{"access_level":"closed","file_name":"LIPIcs-ICALP-2018-51.pdf","date_created":"2018-10-31T16:58:18Z","content_type":"application/pdf","date_updated":"2018-10-31T16:58:18Z","success":1,"relation":"main_file","file_size":723824,"file_id":"5227","creator":"feldi"}],"author":[{"first_name":"Björn","full_name":"Feldkord, Björn","last_name":"Feldkord","id":"22704"},{"id":"14052","last_name":"Feldotto","orcid":"0000-0003-1348-6516","full_name":"Feldotto, Matthias","first_name":"Matthias"},{"last_name":"Gupta","first_name":"Anupam","full_name":"Gupta, Anupam"},{"full_name":"Guruganesh, Guru","first_name":"Guru","last_name":"Guruganesh"},{"last_name":"Kumar","full_name":"Kumar, Amit ","first_name":"Amit "},{"full_name":"Riechers, Sören","first_name":"Sören","last_name":"Riechers"},{"last_name":"Wajc","first_name":"David","full_name":"Wajc, David"}],"publisher":"Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik","file_date_updated":"2018-10-31T16:58:18Z","publication":"45th International Colloquium on Automata, Languages, and Programming (ICALP 2018)","intvolume":" 107","_id":"2484","conference":{"end_date":"2018-07-13","name":"45th International Colloquium on Automata, Languages, and Programming (ICALP 2018)","start_date":"2018-07-10","location":"Prag"},"type":"conference","citation":{"ieee":"B. Feldkord et al., “Fully-Dynamic Bin Packing with Little Repacking,” in 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018), Prag, 2018, vol. 107, pp. 51:1-51:24.","short":"B. Feldkord, M. Feldotto, A. Gupta, G. Guruganesh, A. Kumar, S. Riechers, D. Wajc, in: I. Chatzigiannakis, C. Kaklamanis, D. Marx, D. Sannella (Eds.), 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018), Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, Dagstuhl, Germany, 2018, pp. 51:1-51:24.","bibtex":"@inproceedings{Feldkord_Feldotto_Gupta_Guruganesh_Kumar_Riechers_Wajc_2018, place={Dagstuhl, Germany}, series={Leibniz International Proceedings in Informatics (LIPIcs)}, title={Fully-Dynamic Bin Packing with Little Repacking}, volume={107}, DOI={10.4230/LIPIcs.ICALP.2018.51}, booktitle={45th International Colloquium on Automata, Languages, and Programming (ICALP 2018)}, publisher={Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik}, author={Feldkord, Björn and Feldotto, Matthias and Gupta, Anupam and Guruganesh, Guru and Kumar, Amit and Riechers, Sören and Wajc, David}, editor={Chatzigiannakis, Ioannis and Kaklamanis, Christos and Marx, Dániel and Sannella, DonaldEditors}, year={2018}, pages={51:1-51:24}, collection={Leibniz International Proceedings in Informatics (LIPIcs)} }","mla":"Feldkord, Björn, et al. “Fully-Dynamic Bin Packing with Little Repacking.” 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018), edited by Ioannis Chatzigiannakis et al., vol. 107, Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2018, pp. 51:1-51:24, doi:10.4230/LIPIcs.ICALP.2018.51.","chicago":"Feldkord, Björn, Matthias Feldotto, Anupam Gupta, Guru Guruganesh, Amit Kumar, Sören Riechers, and David Wajc. “Fully-Dynamic Bin Packing with Little Repacking.” In 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018), edited by Ioannis Chatzigiannakis, Christos Kaklamanis, Dániel Marx, and Donald Sannella, 107:51:1-51:24. Leibniz International Proceedings in Informatics (LIPIcs). Dagstuhl, Germany: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2018. https://doi.org/10.4230/LIPIcs.ICALP.2018.51.","apa":"Feldkord, B., Feldotto, M., Gupta, A., Guruganesh, G., Kumar, A., Riechers, S., & Wajc, D. (2018). Fully-Dynamic Bin Packing with Little Repacking. In I. Chatzigiannakis, C. Kaklamanis, D. Marx, & D. Sannella (Eds.), 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018) (Vol. 107, pp. 51:1-51:24). Dagstuhl, Germany: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik. https://doi.org/10.4230/LIPIcs.ICALP.2018.51","ama":"Feldkord B, Feldotto M, Gupta A, et al. Fully-Dynamic Bin Packing with Little Repacking. In: Chatzigiannakis I, Kaklamanis C, Marx D, Sannella D, eds. 45th International Colloquium on Automata, Languages, and Programming (ICALP 2018). Vol 107. Leibniz International Proceedings in Informatics (LIPIcs). Dagstuhl, Germany: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik; 2018:51:1-51:24. doi:10.4230/LIPIcs.ICALP.2018.51"},"year":"2018","page":"51:1-51:24"},{"language":[{"iso":"eng"}],"doi":"10.1145/3210377.3210389","date_updated":"2022-01-06T06:56:39Z","project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"publication_status":"published","department":[{"_id":"63"}],"title":"Online Facility Location with Mobile Facilities","type":"conference","citation":{"short":"B. Feldkord, F. Meyer auf der Heide, in: Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM, 2018, pp. 373–381.","ieee":"B. Feldkord and F. Meyer auf der Heide, “Online Facility Location with Mobile Facilities,” in Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), Wien, 2018, pp. 373–381.","apa":"Feldkord, B., & Meyer auf der Heide, F. (2018). Online Facility Location with Mobile Facilities. In Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA) (pp. 373–381). Wien: ACM. https://doi.org/10.1145/3210377.3210389","ama":"Feldkord B, Meyer auf der Heide F. Online Facility Location with Mobile Facilities. In: Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM; 2018:373-381. doi:10.1145/3210377.3210389","chicago":"Feldkord, Björn, and Friedhelm Meyer auf der Heide. “Online Facility Location with Mobile Facilities.” In Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 373–81. ACM, 2018. https://doi.org/10.1145/3210377.3210389.","mla":"Feldkord, Björn, and Friedhelm Meyer auf der Heide. “Online Facility Location with Mobile Facilities.” Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM, 2018, pp. 373–81, doi:10.1145/3210377.3210389.","bibtex":"@inproceedings{Feldkord_Meyer auf der Heide_2018, title={Online Facility Location with Mobile Facilities}, DOI={10.1145/3210377.3210389}, booktitle={Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)}, publisher={ACM}, author={Feldkord, Björn and Meyer auf der Heide, Friedhelm}, year={2018}, pages={373–381} }"},"year":"2018","page":"373 - 381 ","_id":"2485","conference":{"name":"SPAA'18","location":"Wien"},"has_accepted_license":"1","status":"public","date_created":"2018-04-25T08:49:43Z","file":[{"content_type":"application/pdf","date_updated":"2018-11-02T14:42:33Z","success":1,"relation":"main_file","file_size":1207546,"creator":"ups","file_id":"5280","access_level":"closed","date_created":"2018-11-02T14:42:33Z","file_name":"p373-feldkord.pdf"}],"publisher":"ACM","author":[{"last_name":"Feldkord","id":"22704","first_name":"Björn","full_name":"Feldkord, Björn"},{"last_name":"Meyer auf der Heide","id":"15523","first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm"}],"publication":"Proceedings of the 30th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)","file_date_updated":"2018-11-02T14:42:33Z","user_id":"477","ddc":["000"]},{"date_created":"2021-09-29T12:30:40Z","has_accepted_license":"1","status":"public","department":[{"_id":"63"}],"file_date_updated":"2021-09-29T12:21:24Z","author":[{"full_name":"Liedtke, David Jan","first_name":"David Jan","id":"55557","last_name":"Liedtke"}],"file":[{"file_size":6746519,"creator":"liedtke","file_id":"25124","content_type":"application/pdf","date_updated":"2021-09-29T12:21:24Z","relation":"main_file","date_created":"2021-09-29T12:21:24Z","file_name":"Bachelor - Thesis.pdf","access_level":"local"}],"ddc":["000"],"title":"Influence of Stationary Robots on Continuous Robot Formation Problems","user_id":"55557","abstract":[{"text":"We consider a group of $n$ autonomous mobile robots of which $m$ are stationary thus cannot move. Robots are represented by points in the Euclidean plane. They have no memory, do not communicate or share a common coordinate system and they move solely based on the positioning of other robots within their limited viewing range of 1. The goal is to gather the robots inside of the convex hull of all stationary robots. A variant of this problem, the general gathering problem, has been studied in various different time models. In this work, we consider a continuous time model, where robots continuously observe their neighbors, compute the next target of movement and move with a speed limit of 1 at any time. Regarding the robots' local strategy, we only study contracting algorithms in which every robot that is positioned on the border of the convex hull of all robots moves into this hull. We present a time bound of $\\mathcal{O}(nd)$ for any general contracting algorithms in a configuration with only a single stationary robot. For configurations with more stationary robots, we prove that robots converge against the convex hull of all stationary robots and that no upper bound on the runtime exists. For the specific contracting algorithms Go-To-The-Left, Go-On-Bisector and Go-To-The-Middle, we provide linear time bounds.","lang":"eng"}],"citation":{"mla":"Liedtke, David Jan. Influence of Stationary Robots on Continuous Robot Formation Problems. 2018.","bibtex":"@book{Liedtke_2018, title={Influence of Stationary Robots on Continuous Robot Formation Problems}, author={Liedtke, David Jan}, year={2018} }","ama":"Liedtke DJ. Influence of Stationary Robots on Continuous Robot Formation Problems.; 2018.","apa":"Liedtke, D. J. (2018). Influence of Stationary Robots on Continuous Robot Formation Problems.","chicago":"Liedtke, David Jan. Influence of Stationary Robots on Continuous Robot Formation Problems, 2018.","ieee":"D. J. Liedtke, Influence of Stationary Robots on Continuous Robot Formation Problems. 2018.","short":"D.J. Liedtke, Influence of Stationary Robots on Continuous Robot Formation Problems, 2018."},"year":"2018","type":"bachelorsthesis","supervisor":[{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"}],"language":[{"iso":"eng"}],"_id":"25121","date_updated":"2022-01-06T06:56:52Z"},{"language":[{"iso":"eng"}],"citation":{"mla":"Markarian, Christine. “Online Connected Dominating Set Leasing.” ArXiv:1805.02994, 2018.","bibtex":"@article{Markarian_2018, title={Online Connected Dominating Set Leasing}, journal={arXiv:1805.02994}, author={Markarian, Christine}, year={2018} }","chicago":"Markarian, Christine. “Online Connected Dominating Set Leasing.” ArXiv:1805.02994, 2018.","ama":"Markarian C. Online Connected Dominating Set Leasing. arXiv:180502994. 2018.","apa":"Markarian, C. (2018). Online Connected Dominating Set Leasing. ArXiv:1805.02994.","ieee":"C. Markarian, “Online Connected Dominating Set Leasing,” arXiv:1805.02994. 2018.","short":"C. Markarian, ArXiv:1805.02994 (2018)."},"type":"preprint","year":"2018","date_updated":"2022-01-06T06:54:17Z","_id":"19978","author":[{"last_name":"Markarian","first_name":"Christine","full_name":"Markarian, Christine"}],"publication":"arXiv:1805.02994","department":[{"_id":"63"}],"status":"public","date_created":"2020-10-12T12:42:54Z","abstract":[{"lang":"eng","text":"We introduce the \\emph{Online Connected Dominating Set Leasing} problem\r\n(OCDSL) in which we are given an undirected connected graph $G = (V, E)$, a set\r\n$\\mathcal{L}$ of lease types each characterized by a duration and cost, and a\r\nsequence of subsets of $V$ arriving over time. A node can be leased using lease\r\ntype $l$ for cost $c_l$ and remains active for time $d_l$. The adversary gives\r\nin each step $t$ a subset of nodes that need to be dominated by a connected\r\nsubgraph consisting of nodes active at time $t$. The goal is to minimize the\r\ntotal leasing costs. OCDSL contains the \\emph{Parking Permit\r\nProblem}~\\cite{PPP} as a special subcase and generalizes the classical offline\r\n\\emph{Connected Dominating Set} problem~\\cite{Guha1998}. It has an $\\Omega(\\log\r\n^2 n + \\log |\\mathcal{L}|)$ randomized lower bound resulting from lower bounds\r\nfor the \\emph{Parking Permit Problem} and the \\emph{Online Set Cover}\r\nproblem~\\cite{Alon:2003:OSC:780542.780558,Korman}, where $|\\mathcal{L}|$ is the\r\nnumber of available lease types and $n$ is the number of nodes in the input\r\ngraph. We give a randomized $\\mathcal{O}(\\log ^2 n + \\log |\\mathcal{L}| \\log\r\nn)$-competitive algorithm for OCDSL. We also give a deterministic algorithm for\r\na variant of OCDSL in which the dominating subgraph need not be connected, the\r\n\\emph{Online Dominating Set Leasing} problem. The latter is based on a simple\r\nprimal-dual approach and has an $\\mathcal{O}(|\\mathcal{L}| \\cdot\r\n\\Delta)$-competitive ratio, where $\\Delta$ is the maximum degree of the input\r\ngraph."}],"user_id":"15415","title":"Online Connected Dominating Set Leasing"},{"date_updated":"2022-01-06T06:58:01Z","doi":"10.1145/3230654.3230659","language":[{"iso":"eng"}],"title":"Disaggregating User Evaluations Using the Shapley Value","department":[{"_id":"541"},{"_id":"63"},{"_id":"205"},{"_id":"475"}],"project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"7","name":"SFB 901 - Subproject A3"}],"publication_identifier":{"isbn":["978-1-4503-5916-0"]},"publication_status":"published","_id":"2831","conference":{"end_date":"2018-06-18","start_date":"2018-06-18","name":"The 13th Workshop on the Economics of Networks, Systems and Computation (NetEcon 2018)","location":"Irvine, California, USA"},"citation":{"bibtex":"@inproceedings{Feldotto_Haake_Skopalik_Stroh-Maraun_2018, title={Disaggregating User Evaluations Using the Shapley Value}, DOI={10.1145/3230654.3230659}, booktitle={Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018)}, author={Feldotto, Matthias and Haake, Claus-Jochen and Skopalik, Alexander and Stroh-Maraun, Nadja}, year={2018}, pages={5:1-5:6} }","mla":"Feldotto, Matthias, et al. “Disaggregating User Evaluations Using the Shapley Value.” Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018), 2018, pp. 5:1-5:6, doi:10.1145/3230654.3230659.","ama":"Feldotto M, Haake C-J, Skopalik A, Stroh-Maraun N. Disaggregating User Evaluations Using the Shapley Value. In: Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018). ; 2018:5:1-5:6. doi:10.1145/3230654.3230659","apa":"Feldotto, M., Haake, C.-J., Skopalik, A., & Stroh-Maraun, N. (2018). Disaggregating User Evaluations Using the Shapley Value. In Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018) (pp. 5:1-5:6). Irvine, California, USA. https://doi.org/10.1145/3230654.3230659","chicago":"Feldotto, Matthias, Claus-Jochen Haake, Alexander Skopalik, and Nadja Stroh-Maraun. “Disaggregating User Evaluations Using the Shapley Value.” In Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018), 5:1-5:6, 2018. https://doi.org/10.1145/3230654.3230659.","ieee":"M. Feldotto, C.-J. Haake, A. Skopalik, and N. Stroh-Maraun, “Disaggregating User Evaluations Using the Shapley Value,” in Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018), Irvine, California, USA, 2018, pp. 5:1-5:6.","short":"M. Feldotto, C.-J. Haake, A. Skopalik, N. Stroh-Maraun, in: Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018), 2018, pp. 5:1-5:6."},"type":"conference","year":"2018","page":"5:1-5:6","abstract":[{"text":"We consider a market where final products or services are compositions of a number of basic services. Users are asked to evaluate the quality of the composed product after purchase. The quality of the basic service influences the performance of the composed services but cannot be observed directly. The question we pose is whether it is possible to use user evaluations on composed services to assess the quality of basic services. We discuss how to combine aggregation of evaluations across users and disaggregation of information on composed services to derive valuations for the single components. As a solution we propose to use the (weighted) average as aggregation device in connection with the Shapley value as disaggregation method, since this combination fulfills natural requirements in our context. In addition, we address some occurring computational issues: We give an approximate solution concept using only a limited number of evaluations which guarantees nearly optimal results with reduced running time. Lastly, we show that a slightly modified Shapley value and the weighted average are still applicable if the evaluation profiles are incomplete.","lang":"eng"}],"user_id":"14052","ddc":["040"],"file":[{"file_size":1450171,"creator":"nmaraun","file_id":"3910","content_type":"application/pdf","date_updated":"2018-08-15T07:30:50Z","success":1,"relation":"main_file","date_created":"2018-08-15T07:30:50Z","file_name":"Disaggregating User Evaluations Using the Shapley Value.pdf","access_level":"closed"}],"author":[{"full_name":"Feldotto, Matthias","orcid":"0000-0003-1348-6516","first_name":"Matthias","id":"14052","last_name":"Feldotto"},{"last_name":"Haake","id":"20801","first_name":"Claus-Jochen","full_name":"Haake, Claus-Jochen"},{"first_name":"Alexander","full_name":"Skopalik, Alexander","last_name":"Skopalik","id":"40384"},{"first_name":"Nadja","full_name":"Stroh-Maraun, Nadja","last_name":"Stroh-Maraun","id":"13264"}],"file_date_updated":"2018-08-15T07:30:50Z","publication":"Proceedings of the 13th Workshop on Economics of Networks, Systems and Computation (NetEcon 2018)","status":"public","has_accepted_license":"1","date_created":"2018-05-22T10:28:51Z"},{"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"department":[{"_id":"63"}],"title":"Towards Flexible Demands in Online Leasing Problems. ","language":[{"iso":"eng"}],"doi":"10.1007/s00453-018-0420-y","date_updated":"2022-01-06T06:58:06Z","status":"public","has_accepted_license":"1","date_created":"2018-05-24T08:32:38Z","volume":80,"file":[{"relation":"main_file","success":1,"content_type":"application/pdf","date_updated":"2018-11-02T15:18:16Z","file_id":"5298","creator":"ups","file_size":600583,"access_level":"closed","file_name":"TowardsFlexibleDemandsInOnline.pdf","date_created":"2018-11-02T15:18:16Z"}],"publisher":"Springer","author":[{"last_name":"Li","full_name":"Li, Shouwei","first_name":"Shouwei"},{"full_name":"Markarian, Christine","first_name":"Christine","id":"37612","last_name":"Markarian"},{"first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","id":"15523"}],"file_date_updated":"2018-11-02T15:18:16Z","publication":"Algorithmica","user_id":"477","ddc":["000"],"type":"journal_article","year":"2018","citation":{"mla":"Li, Shouwei, et al. “Towards Flexible Demands in Online Leasing Problems. .” Algorithmica, vol. 80, no. 5, Springer, 2018, pp. 1556–1574, doi:10.1007/s00453-018-0420-y.","bibtex":"@article{Li_Markarian_Meyer auf der Heide_2018, title={Towards Flexible Demands in Online Leasing Problems. }, volume={80}, DOI={10.1007/s00453-018-0420-y}, number={5}, journal={Algorithmica}, publisher={Springer}, author={Li, Shouwei and Markarian, Christine and Meyer auf der Heide, Friedhelm}, year={2018}, pages={1556–1574} }","apa":"Li, S., Markarian, C., & Meyer auf der Heide, F. (2018). Towards Flexible Demands in Online Leasing Problems. . Algorithmica, 80(5), 1556–1574. https://doi.org/10.1007/s00453-018-0420-y","ama":"Li S, Markarian C, Meyer auf der Heide F. Towards Flexible Demands in Online Leasing Problems. . Algorithmica. 2018;80(5):1556–1574. doi:10.1007/s00453-018-0420-y","chicago":"Li, Shouwei, Christine Markarian, and Friedhelm Meyer auf der Heide. “Towards Flexible Demands in Online Leasing Problems. .” Algorithmica 80, no. 5 (2018): 1556–1574. https://doi.org/10.1007/s00453-018-0420-y.","ieee":"S. Li, C. Markarian, and F. Meyer auf der Heide, “Towards Flexible Demands in Online Leasing Problems. ,” Algorithmica, vol. 80, no. 5, pp. 1556–1574, 2018.","short":"S. Li, C. Markarian, F. Meyer auf der Heide, Algorithmica 80 (2018) 1556–1574."},"page":"1556–1574","issue":"5","_id":"2848","intvolume":" 80"},{"title":"Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-hoc Networks","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"publication_identifier":{"unknown":["1432-4350"]},"department":[{"_id":"63"}],"doi":"10.1007/s00224-017-9836-z","date_updated":"2022-01-06T06:58:06Z","language":[{"iso":"eng"}],"user_id":"477","ddc":["000"],"date_created":"2018-05-24T08:39:15Z","has_accepted_license":"1","status":"public","file":[{"creator":"ups","file_id":"5301","file_size":1371624,"success":1,"relation":"main_file","date_updated":"2018-11-02T15:24:32Z","content_type":"application/pdf","file_name":"ApproximationAndHeuristicAlgor.pdf","date_created":"2018-11-02T15:24:32Z","access_level":"closed"}],"file_date_updated":"2018-11-02T15:24:32Z","publication":"Theory of Computing Systems","author":[{"last_name":"Abu-Khzam","full_name":"Abu-Khzam, Faisal N. ","first_name":"Faisal N. "},{"first_name":"Christine","full_name":"Markarian, Christine","last_name":"Markarian","id":"37612"},{"first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","id":"15523"},{"first_name":"Michael","full_name":"Schubert, Michael","last_name":"Schubert"}],"publisher":"Springer","_id":"2849","year":"2018","type":"journal_article","citation":{"short":"F.N. Abu-Khzam, C. Markarian, F. Meyer auf der Heide, M. Schubert, Theory of Computing Systems (2018).","ieee":"F. N. Abu-Khzam, C. Markarian, F. Meyer auf der Heide, and M. Schubert, “Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-hoc Networks,” Theory of Computing Systems, 2018.","chicago":"Abu-Khzam, Faisal N. , Christine Markarian, Friedhelm Meyer auf der Heide, and Michael Schubert. “Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-Hoc Networks.” Theory of Computing Systems, 2018. https://doi.org/10.1007/s00224-017-9836-z.","ama":"Abu-Khzam FN, Markarian C, Meyer auf der Heide F, Schubert M. Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-hoc Networks. Theory of Computing Systems. 2018. doi:10.1007/s00224-017-9836-z","apa":"Abu-Khzam, F. N., Markarian, C., Meyer auf der Heide, F., & Schubert, M. (2018). Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-hoc Networks. Theory of Computing Systems. https://doi.org/10.1007/s00224-017-9836-z","bibtex":"@article{Abu-Khzam_Markarian_Meyer auf der Heide_Schubert_2018, title={Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-hoc Networks}, DOI={10.1007/s00224-017-9836-z}, journal={Theory of Computing Systems}, publisher={Springer}, author={Abu-Khzam, Faisal N. and Markarian, Christine and Meyer auf der Heide, Friedhelm and Schubert, Michael}, year={2018} }","mla":"Abu-Khzam, Faisal N., et al. “Approximation and Heuristic Algorithms for Computing Backbones in Asymmetric Ad-Hoc Networks.” Theory of Computing Systems, Springer, 2018, doi:10.1007/s00224-017-9836-z."}},{"date_updated":"2022-01-06T06:58:07Z","_id":"2850","doi":"10.4230/LIPIcs.FUN.2018.22","citation":{"short":"H. Hamann, C. Markarian, F. Meyer auf der Heide, M. Wahby, in: Ninth International Conference on Fun with Algorithms (FUN), 2018.","ieee":"H. Hamann, C. Markarian, F. Meyer auf der Heide, and M. Wahby, “Pick, Pack, & Survive: Charging Robots in a Modern Warehouse based on Online Connected Dominating Sets,” in Ninth International Conference on Fun with Algorithms (FUN), 2018.","chicago":"Hamann, Heiko, Christine Markarian, Friedhelm Meyer auf der Heide, and Mostafa Wahby. “Pick, Pack, & Survive: Charging Robots in a Modern Warehouse Based on Online Connected Dominating Sets.” In Ninth International Conference on Fun with Algorithms (FUN), 2018. https://doi.org/10.4230/LIPIcs.FUN.2018.22.","ama":"Hamann H, Markarian C, Meyer auf der Heide F, Wahby M. Pick, Pack, & Survive: Charging Robots in a Modern Warehouse based on Online Connected Dominating Sets. In: Ninth International Conference on Fun with Algorithms (FUN). ; 2018. doi:10.4230/LIPIcs.FUN.2018.22","apa":"Hamann, H., Markarian, C., Meyer auf der Heide, F., & Wahby, M. (2018). Pick, Pack, & Survive: Charging Robots in a Modern Warehouse based on Online Connected Dominating Sets. In Ninth International Conference on Fun with Algorithms (FUN). https://doi.org/10.4230/LIPIcs.FUN.2018.22","mla":"Hamann, Heiko, et al. “Pick, Pack, & Survive: Charging Robots in a Modern Warehouse Based on Online Connected Dominating Sets.” Ninth International Conference on Fun with Algorithms (FUN), 2018, doi:10.4230/LIPIcs.FUN.2018.22.","bibtex":"@inproceedings{Hamann_Markarian_Meyer auf der Heide_Wahby_2018, title={Pick, Pack, & Survive: Charging Robots in a Modern Warehouse based on Online Connected Dominating Sets}, DOI={10.4230/LIPIcs.FUN.2018.22}, booktitle={Ninth International Conference on Fun with Algorithms (FUN)}, author={Hamann, Heiko and Markarian, Christine and Meyer auf der Heide, Friedhelm and Wahby, Mostafa}, year={2018} }"},"type":"conference","year":"2018","language":[{"iso":"eng"}],"title":"Pick, Pack, & Survive: Charging Robots in a Modern Warehouse based on Online Connected Dominating Sets","ddc":["000"],"user_id":"15415","publication":"Ninth International Conference on Fun with Algorithms (FUN)","department":[{"_id":"63"},{"_id":"238"}],"file_date_updated":"2018-11-13T13:15:19Z","author":[{"last_name":"Hamann","first_name":"Heiko","full_name":"Hamann, Heiko"},{"full_name":"Markarian, Christine","first_name":"Christine","id":"37612","last_name":"Markarian"},{"full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm","id":"15523","last_name":"Meyer auf der Heide"},{"full_name":"Wahby, Mostafa","first_name":"Mostafa","last_name":"Wahby"}],"file":[{"success":1,"relation":"main_file","content_type":"application/pdf","date_updated":"2018-11-13T13:15:19Z","file_id":"5536","creator":"feldi","file_size":554298,"access_level":"closed","file_name":"LIPIcs-FUN-2018-22.pdf","date_created":"2018-11-13T13:15:19Z"}],"date_created":"2018-05-24T08:41:48Z","project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"has_accepted_license":"1","status":"public"},{"publication_identifier":{"issn":["0302-9743","1611-3349"]},"publication_status":"published","date_created":"2021-09-14T12:23:29Z","status":"public","publication":"International Workshop on Combinatorial Algorithms (IWOCA)","department":[{"_id":"63"}],"author":[{"full_name":"Markarian, Christine","first_name":"Christine","last_name":"Markarian"}],"title":"An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest","user_id":"15415","abstract":[{"lang":"eng","text":"We study the Online Prize-collecting Node-weighted Steiner Forest problem (OPC-NWSF) in which we are given an undirected graph \\(G=(V, E)\\) with \\(|V| = n\\) and node-weight function \\(w: V \\rightarrow \\mathcal {R}^+\\). A sequence of k pairs of nodes of G, each associated with a penalty, arrives online. OPC-NWSF asks to construct a subgraph H such that each pair \\(\\{s, t\\}\\) is either connected (there is a path between s and t in H) or its associated penalty is paid. The goal is to minimize the weight of H and the total penalties paid. The current best result for OPC-NWSF is a randomized \\(\\mathcal {O}(\\log ^4 n)\\)-competitive algorithm due to Hajiaghayi et al. (ICALP 2014). We improve this by proposing a randomized \\(\\mathcal {O}(\\log n \\log k)\\)-competitive algorithm for OPC-NWSF, which is optimal up to constant factor since OPC-NWSF has a randomized lower bound of \\(\\varOmega (\\log ^2 n)\\) due to Korman [11]. Moreover, our result also implies an improvement for two special cases of OPC-NWSF, the Online Prize-collecting Node-weighted Steiner Tree problem (OPC-NWST) and the Online Node-weighted Steiner Forest problem (ONWSF). In OPC-NWST, there is a distinguished node which is one of the nodes in each pair. In ONWSF, all penalties are set to infinity. The currently best known results for OPC-NWST and ONWSF are a randomized \\(\\mathcal {O}(\\log ^3 n)\\)-competitive algorithm due to Hajiaghayi et al. (ICALP 2014) and a randomized \\(\\mathcal {O}(\\log n \\log ^2 k)\\)-competitive algorithm due to Hajiaghayi et al. (FOCS 2013), respectively."}],"place":"Cham","year":"2018","type":"conference","citation":{"ieee":"C. Markarian, “An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest,” 2018, doi: 10.1007/978-3-319-94667-2_18.","short":"C. Markarian, in: International Workshop on Combinatorial Algorithms (IWOCA), Cham, 2018.","bibtex":"@inproceedings{Markarian_2018, place={Cham}, title={An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest}, DOI={10.1007/978-3-319-94667-2_18}, booktitle={International Workshop on Combinatorial Algorithms (IWOCA)}, author={Markarian, Christine}, year={2018} }","mla":"Markarian, Christine. “An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest.” International Workshop on Combinatorial Algorithms (IWOCA), 2018, doi:10.1007/978-3-319-94667-2_18.","ama":"Markarian C. An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest. In: International Workshop on Combinatorial Algorithms (IWOCA). ; 2018. doi:10.1007/978-3-319-94667-2_18","apa":"Markarian, C. (2018). An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest. International Workshop on Combinatorial Algorithms (IWOCA). https://doi.org/10.1007/978-3-319-94667-2_18","chicago":"Markarian, Christine. “An Optimal Algorithm for Online Prize-Collecting Node-Weighted Steiner Forest.” In International Workshop on Combinatorial Algorithms (IWOCA). Cham, 2018. https://doi.org/10.1007/978-3-319-94667-2_18."},"language":[{"iso":"eng"}],"doi":"10.1007/978-3-319-94667-2_18","_id":"24396","date_updated":"2022-01-06T06:56:19Z"},{"volume":36,"status":"public","has_accepted_license":"1","date_created":"2018-07-13T09:57:48Z","author":[{"id":"22358","last_name":"König","full_name":"König, Jürgen","first_name":"Jürgen"},{"full_name":"Mäcker, Alexander","first_name":"Alexander","id":"13536","last_name":"Mäcker"},{"first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","id":"15523"},{"full_name":"Riechers, Sören","first_name":"Sören","last_name":"Riechers"}],"file_date_updated":"2018-11-02T15:20:24Z","publication":"Journal of Combinatorial Optimization","file":[{"access_level":"closed","file_name":"SchedulingWithInterjobCommunic.pdf","date_created":"2018-11-02T15:20:24Z","content_type":"application/pdf","date_updated":"2018-11-02T15:20:24Z","relation":"main_file","success":1,"file_size":745708,"creator":"ups","file_id":"5299"}],"ddc":["000"],"user_id":"477","citation":{"bibtex":"@article{König_Mäcker_Meyer auf der Heide_Riechers_2018, title={Scheduling with interjob communication on parallel processors}, volume={36}, DOI={10.1007/s10878-018-0325-3}, number={4}, journal={Journal of Combinatorial Optimization}, author={König, Jürgen and Mäcker, Alexander and Meyer auf der Heide, Friedhelm and Riechers, Sören}, year={2018}, pages={1356–1379} }","mla":"König, Jürgen, et al. “Scheduling with Interjob Communication on Parallel Processors.” Journal of Combinatorial Optimization, vol. 36, no. 4, 2018, pp. 1356–79, doi:10.1007/s10878-018-0325-3.","chicago":"König, Jürgen, Alexander Mäcker, Friedhelm Meyer auf der Heide, and Sören Riechers. “Scheduling with Interjob Communication on Parallel Processors.” Journal of Combinatorial Optimization 36, no. 4 (2018): 1356–79. https://doi.org/10.1007/s10878-018-0325-3.","apa":"König, J., Mäcker, A., Meyer auf der Heide, F., & Riechers, S. (2018). Scheduling with interjob communication on parallel processors. Journal of Combinatorial Optimization, 36(4), 1356–1379. https://doi.org/10.1007/s10878-018-0325-3","ama":"König J, Mäcker A, Meyer auf der Heide F, Riechers S. Scheduling with interjob communication on parallel processors. Journal of Combinatorial Optimization. 2018;36(4):1356-1379. doi:10.1007/s10878-018-0325-3","ieee":"J. König, A. Mäcker, F. Meyer auf der Heide, and S. Riechers, “Scheduling with interjob communication on parallel processors,” Journal of Combinatorial Optimization, vol. 36, no. 4, pp. 1356–1379, 2018.","short":"J. König, A. Mäcker, F. Meyer auf der Heide, S. Riechers, Journal of Combinatorial Optimization 36 (2018) 1356–1379."},"type":"journal_article","year":"2018","page":"1356-1379","issue":"4","_id":"3551","intvolume":" 36","project":[{"_id":"16","name":"SFB 901 - Subproject C4"},{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"}],"department":[{"_id":"63"}],"title":"Scheduling with interjob communication on parallel processors","language":[{"iso":"eng"}],"doi":"10.1007/s10878-018-0325-3","date_updated":"2022-01-06T06:59:24Z"},{"department":[{"_id":"541"},{"_id":"63"}],"author":[{"first_name":"Samuel","full_name":"Koop, Samuel","last_name":"Koop"}],"publisher":"Universität Paderborn","date_created":"2018-08-08T11:56:37Z","project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Project Area A","_id":"2"},{"name":"SFB 901 - Subproject A3","_id":"7"}],"status":"public","title":"Congestion Games mit gewichteten Strategien","user_id":"14052","type":"bachelorsthesis","citation":{"apa":"Koop, S. (2018). Congestion Games mit gewichteten Strategien. Universität Paderborn.","ama":"Koop S. Congestion Games mit gewichteten Strategien. Universität Paderborn; 2018.","chicago":"Koop, Samuel. Congestion Games mit gewichteten Strategien. Universität Paderborn, 2018.","bibtex":"@book{Koop_2018, title={Congestion Games mit gewichteten Strategien}, publisher={Universität Paderborn}, author={Koop, Samuel}, year={2018} }","mla":"Koop, Samuel. Congestion Games mit gewichteten Strategien. Universität Paderborn, 2018.","short":"S. Koop, Congestion Games mit gewichteten Strategien, Universität Paderborn, 2018.","ieee":"S. Koop, Congestion Games mit gewichteten Strategien. Universität Paderborn, 2018."},"year":"2018","language":[{"iso":"ger"}],"supervisor":[{"id":"40384","last_name":"Skopalik","full_name":"Skopalik, Alexander","first_name":"Alexander"}],"_id":"3851","date_updated":"2022-01-06T06:59:45Z"},{"publication_identifier":{"isbn":["978-3-030-04651-4"]},"editor":[{"first_name":"Donghyun","full_name":"Kim, Donghyun","last_name":"Kim"},{"last_name":"Uma","full_name":"Uma, R. N.","first_name":"R. N."},{"last_name":"Zelikovsky","full_name":"Zelikovsky, Alexander","first_name":"Alexander"}],"department":[{"_id":"63"},{"_id":"541"}],"title":"Removing Undesirable Flows by Edge Deletion","place":"Cham","language":[{"iso":"eng"}],"date_updated":"2022-01-06T06:53:16Z","date_created":"2020-08-06T15:19:36Z","status":"public","keyword":["flow","Red-Blue Set Cover","Positive-Negative Partial Set Cover","approximation","tree","MAX SNP-hard","root","leaf","dynamic programming","FPT"],"publication":"Combinatorial Optimization and Applications","publisher":"Springer International Publishing","author":[{"first_name":"Gleb","full_name":"Polevoy, Gleb","last_name":"Polevoy","id":"83983"},{"last_name":"Trajanovski","full_name":"Trajanovski, Stojan","first_name":"Stojan"},{"full_name":"Grosso, Paola","first_name":"Paola","last_name":"Grosso"},{"full_name":"de Laat, Cees","first_name":"Cees","last_name":"de Laat"}],"user_id":"83983","extern":"1","abstract":[{"text":"Consider mitigating the effects of denial of service or of malicious traffic in networks by deleting edges. Edge deletion reduces the DoS or the number of the malicious flows, but it also inadvertently removes some of the desired flows. To model this important problem, we formulate two problems: (1) remove all the undesirable flows while minimizing the damage to the desirable ones and (2) balance removing the undesirable flows and not removing too many of the desirable flows. We prove these problems are equivalent to important theoretical problems, thereby being important not only practically but also theoretically, and very hard to approximate in a general network. We employ reductions to nonetheless approximate the problem and also provide a greedy approximation. When the network is a tree, the problems are still MAX SNP-hard, but we provide a greedy-based 2l-approximation algorithm, where l is the longest desirable flow. We also provide an algorithm, approximating the first and the second problem within {\\$}{\\$}2 {\\backslash}sqrt{\\{} 2{\\backslash}left| E {\\backslash}right| {\\}}{\\$}{\\$}and {\\$}{\\$}2 {\\backslash}sqrt{\\{}2 ({\\backslash}left| E {\\backslash}right| + {\\backslash}left| {\\backslash}text {\\{}undesirable flows{\\}} {\\backslash}right| ){\\}}{\\$}{\\$}, respectively, where E is the set of the edges of the network. We also provide a fixed-parameter tractable (FPT) algorithm. Finally, if the tree has a root such that every flow in the tree flows on the path from the root to a leaf, we solve the problem exactly using dynamic programming.","lang":"eng"}],"page":"217-232","citation":{"ieee":"G. Polevoy, S. Trajanovski, P. Grosso, and C. de Laat, “Removing Undesirable Flows by Edge Deletion,” in Combinatorial Optimization and Applications, 2018, pp. 217–232.","short":"G. Polevoy, S. Trajanovski, P. Grosso, C. de Laat, in: D. Kim, R.N. Uma, A. Zelikovsky (Eds.), Combinatorial Optimization and Applications, Springer International Publishing, Cham, 2018, pp. 217–232.","bibtex":"@inproceedings{Polevoy_Trajanovski_Grosso_de Laat_2018, place={Cham}, title={Removing Undesirable Flows by Edge Deletion}, booktitle={Combinatorial Optimization and Applications}, publisher={Springer International Publishing}, author={Polevoy, Gleb and Trajanovski, Stojan and Grosso, Paola and de Laat, Cees}, editor={Kim, Donghyun and Uma, R. N. and Zelikovsky, AlexanderEditors}, year={2018}, pages={217–232} }","mla":"Polevoy, Gleb, et al. “Removing Undesirable Flows by Edge Deletion.” Combinatorial Optimization and Applications, edited by Donghyun Kim et al., Springer International Publishing, 2018, pp. 217–32.","chicago":"Polevoy, Gleb, Stojan Trajanovski, Paola Grosso, and Cees de Laat. “Removing Undesirable Flows by Edge Deletion.” In Combinatorial Optimization and Applications, edited by Donghyun Kim, R. N. Uma, and Alexander Zelikovsky, 217–32. Cham: Springer International Publishing, 2018.","ama":"Polevoy G, Trajanovski S, Grosso P, de Laat C. Removing Undesirable Flows by Edge Deletion. In: Kim D, Uma RN, Zelikovsky A, eds. Combinatorial Optimization and Applications. Cham: Springer International Publishing; 2018:217-232.","apa":"Polevoy, G., Trajanovski, S., Grosso, P., & de Laat, C. (2018). Removing Undesirable Flows by Edge Deletion. In D. Kim, R. N. Uma, & A. Zelikovsky (Eds.), Combinatorial Optimization and Applications (pp. 217–232). Cham: Springer International Publishing."},"year":"2018","type":"conference","_id":"17651"},{"_id":"17666","date_updated":"2022-01-06T06:53:16Z","doi":"https://doi.org/10.1016/j.future.2018.08.011","language":[{"iso":"eng"}],"year":"2018","citation":{"ieee":"R. Koning, B. de Graaff, G. Polevoy, R. Meijer, C. de Laat, and P. Grosso, “Measuring the efficiency of SDN mitigations against attacks on computer infrastructures,” Future Generation Computer Systems, 2018.","short":"R. Koning, B. de Graaff, G. Polevoy, R. Meijer, C. de Laat, P. Grosso, Future Generation Computer Systems (2018).","bibtex":"@article{Koning_de Graaff_Polevoy_Meijer_de Laat_Grosso_2018, title={Measuring the efficiency of SDN mitigations against attacks on computer infrastructures}, DOI={https://doi.org/10.1016/j.future.2018.08.011}, journal={Future Generation Computer Systems}, author={Koning, R. and de Graaff, B. and Polevoy, Gleb and Meijer, R. and de Laat, C. and Grosso, P.}, year={2018} }","mla":"Koning, R., et al. “Measuring the Efficiency of SDN Mitigations against Attacks on Computer Infrastructures.” Future Generation Computer Systems, 2018, doi:https://doi.org/10.1016/j.future.2018.08.011.","apa":"Koning, R., de Graaff, B., Polevoy, G., Meijer, R., de Laat, C., & Grosso, P. (2018). Measuring the efficiency of SDN mitigations against attacks on computer infrastructures. Future Generation Computer Systems. https://doi.org/10.1016/j.future.2018.08.011","ama":"Koning R, de Graaff B, Polevoy G, Meijer R, de Laat C, Grosso P. Measuring the efficiency of SDN mitigations against attacks on computer infrastructures. Future Generation Computer Systems. 2018. doi:https://doi.org/10.1016/j.future.2018.08.011","chicago":"Koning, R., B. de Graaff, Gleb Polevoy, R. Meijer, C. de Laat, and P. Grosso. “Measuring the Efficiency of SDN Mitigations against Attacks on Computer Infrastructures.” Future Generation Computer Systems, 2018. https://doi.org/10.1016/j.future.2018.08.011."},"type":"journal_article","abstract":[{"lang":"eng","text":"Software Defined Networks (SDN) and Network Function Virtualisation (NFV) provide the basis for autonomous response and mitigation against attacks on networked computer infrastructures. We propose a new framework that uses SDNs and NFV to achieve this goal: Secure Autonomous Response Network (SARNET). In a SARNET, an agent running a control loop constantly assesses the security state of the network by means of observables. The agent reacts to and resolves security problems, while learning from its previous decisions. Two main metrics govern the decision process in a SARNET: impact and efficiency; these metrics can be used to compare and evaluate countermeasures and are the building blocks for self-learning SARNETs that exhibit autonomous response. In this paper we present the software implementation of the SARNET framework, evaluate it in a real-life network and discuss the tradeoffs between parameters used by the SARNET agent and the efficiency of its actions."}],"extern":"1","user_id":"83983","title":"Measuring the efficiency of SDN mitigations against attacks on computer infrastructures","author":[{"first_name":"R.","full_name":"Koning, R.","last_name":"Koning"},{"first_name":"B.","full_name":"de Graaff, B.","last_name":"de Graaff"},{"full_name":"Polevoy, Gleb","first_name":"Gleb","id":"83983","last_name":"Polevoy"},{"full_name":"Meijer, R.","first_name":"R.","last_name":"Meijer"},{"first_name":"C.","full_name":"de Laat, C.","last_name":"de Laat"},{"last_name":"Grosso","first_name":"P.","full_name":"Grosso, P."}],"keyword":["Software defined networks","Network function virtualization","Cyber attacks","Cyber security","Defense efficiency","Overlay networks"],"publication":"Future Generation Computer Systems","department":[{"_id":"63"},{"_id":"541"}],"status":"public","date_created":"2020-08-06T15:23:11Z","publication_identifier":{"issn":["0167-739X"]}},{"department":[{"_id":"63"}],"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Subprojekt C4","_id":"16"},{"name":"SFB 901 - Project Area C","_id":"4"}],"title":"Scheduling Shared Continuous Resources on Many-Cores","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:03:00Z","doi":"10.1007/s10951-017-0518-0","file":[{"date_created":"2018-03-21T13:16:59Z","file_name":"63-main_05.pdf","access_level":"closed","file_size":466808,"creator":"florida","file_id":"1577","date_updated":"2018-03-21T13:16:59Z","content_type":"application/pdf","relation":"main_file","success":1}],"publisher":"Springer","author":[{"last_name":"Althaus","first_name":"Ernst","full_name":"Althaus, Ernst"},{"last_name":"Brinkmann","first_name":"Andre","full_name":"Brinkmann, Andre"},{"full_name":"Kling, Peter","first_name":"Peter","last_name":"Kling"},{"full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm","id":"15523","last_name":"Meyer auf der Heide"},{"full_name":"Nagel, Lars","first_name":"Lars","last_name":"Nagel"},{"last_name":"Riechers","first_name":"Sören","full_name":"Riechers, Sören"},{"first_name":"Jiri","full_name":"Sgall, Jiri","last_name":"Sgall"},{"full_name":"Suess, Tim","first_name":"Tim","last_name":"Suess"}],"publication":"Journal of Scheduling","file_date_updated":"2018-03-21T13:16:59Z","has_accepted_license":"1","status":"public","date_created":"2017-10-17T12:41:03Z","volume":21,"user_id":"15415","ddc":["040"],"type":"journal_article","year":"2018","citation":{"mla":"Althaus, Ernst, et al. “Scheduling Shared Continuous Resources on Many-Cores.” Journal of Scheduling, vol. 21, no. 1, Springer, 2018, pp. 77–92, doi:10.1007/s10951-017-0518-0.","bibtex":"@article{Althaus_Brinkmann_Kling_Meyer auf der Heide_Nagel_Riechers_Sgall_Suess_2018, title={Scheduling Shared Continuous Resources on Many-Cores}, volume={21}, DOI={10.1007/s10951-017-0518-0}, number={1}, journal={Journal of Scheduling}, publisher={Springer}, author={Althaus, Ernst and Brinkmann, Andre and Kling, Peter and Meyer auf der Heide, Friedhelm and Nagel, Lars and Riechers, Sören and Sgall, Jiri and Suess, Tim}, year={2018}, pages={77–92} }","chicago":"Althaus, Ernst, Andre Brinkmann, Peter Kling, Friedhelm Meyer auf der Heide, Lars Nagel, Sören Riechers, Jiri Sgall, and Tim Suess. “Scheduling Shared Continuous Resources on Many-Cores.” Journal of Scheduling 21, no. 1 (2018): 77–92. https://doi.org/10.1007/s10951-017-0518-0.","apa":"Althaus, E., Brinkmann, A., Kling, P., Meyer auf der Heide, F., Nagel, L., Riechers, S., Sgall, J., & Suess, T. (2018). Scheduling Shared Continuous Resources on Many-Cores. Journal of Scheduling, 21(1), 77–92. https://doi.org/10.1007/s10951-017-0518-0","ama":"Althaus E, Brinkmann A, Kling P, et al. Scheduling Shared Continuous Resources on Many-Cores. Journal of Scheduling. 2018;21(1):77-92. doi:10.1007/s10951-017-0518-0","ieee":"E. Althaus et al., “Scheduling Shared Continuous Resources on Many-Cores,” Journal of Scheduling, vol. 21, no. 1, pp. 77–92, 2018, doi: 10.1007/s10951-017-0518-0.","short":"E. Althaus, A. Brinkmann, P. Kling, F. Meyer auf der Heide, L. Nagel, S. Riechers, J. Sgall, T. Suess, Journal of Scheduling 21 (2018) 77–92."},"page":"77-92","intvolume":" 21","_id":"63","issue":"1"},{"citation":{"short":"T. Knollmann, C. Scheideler, in: T. Izumi, P. Kuznetsov (Eds.), Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), Springer, Cham, 2018.","ieee":"T. Knollmann and C. Scheideler, “A Self-Stabilizing Hashed Patricia Trie,” in Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), Tokyo, 2018, vol. 11201.","ama":"Knollmann T, Scheideler C. A Self-Stabilizing Hashed Patricia Trie. In: Izumi T, Kuznetsov P, eds. Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS). Vol 11201. Lecture Notes of Computer Science. Springer, Cham; 2018. doi:10.1007/978-3-030-03232-6_1","apa":"Knollmann, T., & Scheideler, C. (2018). A Self-Stabilizing Hashed Patricia Trie. In T. Izumi & P. Kuznetsov (Eds.), Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS) (Vol. 11201). Tokyo: Springer, Cham. https://doi.org/10.1007/978-3-030-03232-6_1","chicago":"Knollmann, Till, and Christian Scheideler. “A Self-Stabilizing Hashed Patricia Trie.” In Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), edited by Taisuke Izumi and Petr Kuznetsov, Vol. 11201. Lecture Notes of Computer Science. Springer, Cham, 2018. https://doi.org/10.1007/978-3-030-03232-6_1.","bibtex":"@inproceedings{Knollmann_Scheideler_2018, series={Lecture Notes of Computer Science}, title={A Self-Stabilizing Hashed Patricia Trie}, volume={11201}, DOI={10.1007/978-3-030-03232-6_1}, booktitle={Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)}, publisher={Springer, Cham}, author={Knollmann, Till and Scheideler, Christian}, editor={Izumi, Taisuke and Kuznetsov, PetrEditors}, year={2018}, collection={Lecture Notes of Computer Science} }","mla":"Knollmann, Till, and Christian Scheideler. “A Self-Stabilizing Hashed Patricia Trie.” Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), edited by Taisuke Izumi and Petr Kuznetsov, vol. 11201, Springer, Cham, 2018, doi:10.1007/978-3-030-03232-6_1."},"type":"conference","year":"2018","_id":"4411","intvolume":" 11201","conference":{"start_date":"2018-11-04","name":"20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)","location":"Tokyo","end_date":"2018-11-07"},"volume":11201,"status":"public","has_accepted_license":"1","date_created":"2018-09-17T13:12:18Z","publisher":"Springer, Cham","author":[{"full_name":"Knollmann, Till","orcid":"0000-0003-2014-4696","first_name":"Till","id":"39241","last_name":"Knollmann"},{"full_name":"Scheideler, Christian","first_name":"Christian","id":"20792","last_name":"Scheideler"}],"keyword":["Self-Stabilizing","Prefix Search","Distributed Data Structure"],"publication":"Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)","file_date_updated":"2018-11-02T14:38:37Z","file":[{"access_level":"closed","file_name":"ASelf-stabilizingHashedPatrici.pdf","date_created":"2018-11-02T14:38:37Z","success":1,"relation":"main_file","content_type":"application/pdf","date_updated":"2018-11-02T14:38:37Z","file_id":"5277","creator":"ups","file_size":500005}],"ddc":["000"],"user_id":"39241","abstract":[{"text":"While a lot of research in distributed computing has covered solutions for self-stabilizing computing and topologies, there is far less work on self-stabilization for distributed data structures.\r\nConsidering crashing peers in peer-to-peer networks, it should not be taken for granted that a distributed data structure remains intact.\r\nIn this work, we present a self-stabilizing protocol for a distributed data structure called the hashed Patricia Trie (Kniesburges and Scheideler WALCOM'11) that enables efficient prefix search on a set of keys.\r\nThe data structure has a wide area of applications including string matching problems while offering low overhead and efficient operations when embedded on top of a distributed hash table.\r\nEspecially, longest prefix matching for $x$ can be done in $\\mathcal{O}(\\log |x|)$ hash table read accesses.\r\nWe show how to maintain the structure in a self-stabilizing way.\r\nOur protocol assures low overhead in a legal state and a total (asymptotically optimal) memory demand of $\\Theta(d)$ bits, where $d$ is the number of bits needed for storing all keys.","lang":"eng"}],"language":[{"iso":"eng"}],"series_title":"Lecture Notes of Computer Science","doi":"10.1007/978-3-030-03232-6_1","date_updated":"2022-01-06T07:01:02Z","editor":[{"last_name":"Izumi","first_name":"Taisuke","full_name":"Izumi, Taisuke"},{"last_name":"Kuznetsov","full_name":"Kuznetsov, Petr","first_name":"Petr"}],"project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"department":[{"_id":"63"},{"_id":"79"}],"title":"A Self-Stabilizing Hashed Patricia Trie","external_id":{"arxiv":["1809.04923"]}},{"language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:01:11Z","project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"department":[{"_id":"63"},{"_id":"79"}],"title":"Competitive Routing in Hybrid Communication Networks","type":"conference","year":"2018","citation":{"short":"D. Jung, C. Kolb, C. Scheideler, J. Sundermeier, in: Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) , Springer, 2018.","ieee":"D. Jung, C. Kolb, C. Scheideler, and J. Sundermeier, “Competitive Routing in Hybrid Communication Networks,” in Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) , Helsinki, 2018.","chicago":"Jung, Daniel, Christina Kolb, Christian Scheideler, and Jannik Sundermeier. “Competitive Routing in Hybrid Communication Networks.” In Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) . Springer, 2018.","apa":"Jung, D., Kolb, C., Scheideler, C., & Sundermeier, J. (2018). Competitive Routing in Hybrid Communication Networks. In Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) . Helsinki: Springer.","ama":"Jung D, Kolb C, Scheideler C, Sundermeier J. Competitive Routing in Hybrid Communication Networks. In: Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) . Springer; 2018.","bibtex":"@inproceedings{Jung_Kolb_Scheideler_Sundermeier_2018, title={Competitive Routing in Hybrid Communication Networks}, booktitle={Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) }, publisher={Springer}, author={Jung, Daniel and Kolb, Christina and Scheideler, Christian and Sundermeier, Jannik}, year={2018} }","mla":"Jung, Daniel, et al. “Competitive Routing in Hybrid Communication Networks.” Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) , Springer, 2018."},"conference":{"location":"Helsinki","name":"14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) ","start_date":"2018-08-23","end_date":"2018-08-24"},"_id":"4563","date_created":"2018-10-02T07:06:05Z","has_accepted_license":"1","status":"public","file":[{"file_name":"23hybrid.pdf","date_created":"2019-01-11T10:32:38Z","access_level":"closed","file_id":"6621","creator":"ups","file_size":349034,"success":1,"relation":"main_file","content_type":"application/pdf","date_updated":"2019-01-11T10:32:38Z"}],"keyword":["greedy routing","ad hoc networks","convex hulls","c-competitiveness"],"file_date_updated":"2019-01-11T10:32:38Z","publication":"Proceedings of the 14th International Symposium on Algorithms and Experiments for Wireless Networks (ALGOSENSORS) ","publisher":"Springer","author":[{"first_name":"Daniel","full_name":"Jung, Daniel","last_name":"Jung","id":"37827"},{"id":"43647","last_name":"Kolb","full_name":"Kolb, Christina","first_name":"Christina"},{"last_name":"Scheideler","id":"20792","first_name":"Christian","full_name":"Scheideler, Christian"},{"last_name":"Sundermeier","id":"38705","first_name":"Jannik","full_name":"Sundermeier, Jannik"}],"user_id":"38705","ddc":["000"],"abstract":[{"lang":"eng","text":"Routing is a challenging problem for wireless ad hoc networks, especially when the nodes are mobile and spread so widely that in most cases multiple hops are needed to route a message from one node to another. In fact, it is known that any online routing protocol has a poor performance in the worst case, in a sense that there is a distribution of nodes resulting in bad routing paths for that protocol, even if the nodes know their geographic positions and the geographic position of the destination of a message is known. The reason for that is that radio holes in the ad hoc network may require messages to take long detours in order to get to a destination, which are hard to find in an online fashion.\r\n\r\nIn this paper, we assume that the wireless ad hoc network can make limited use of long-range links provided by a global communication infrastructure like a cellular infrastructure or a satellite in order to compute an abstraction of the wireless ad hoc network that allows the messages to be sent along near-shortest paths in the ad hoc network. We present distributed algorithms that compute an abstraction of the ad hoc network in $\\mathcal{O}\\left(\\log ^2 n\\right)$ time using long-range links, which results in $c$-competitive routing paths between any two nodes of the ad hoc network for some constant $c$ if the convex hulls of the radio holes do not intersect. We also show that the storage needed for the abstraction just depends on the number and size of the radio holes in the wireless ad hoc network and is independent on the total number of nodes, and this information just has to be known to a few nodes for the routing to work.\r\n"}]},{"ddc":["000"],"user_id":"38705","file_date_updated":"2018-11-02T13:48:10Z","publication":"Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA)","author":[{"first_name":"Daniel","full_name":"Jung, Daniel","last_name":"Jung","id":"37827"},{"last_name":"Kolb","id":"43647","first_name":"Christina","full_name":"Kolb, Christina"},{"id":"20792","last_name":"Scheideler","full_name":"Scheideler, Christian","first_name":"Christian"},{"id":"38705","last_name":"Sundermeier","full_name":"Sundermeier, Jannik","first_name":"Jannik"}],"publisher":"ACM Press","file":[{"content_type":"application/pdf","date_updated":"2018-11-02T13:48:10Z","success":1,"relation":"main_file","file_size":1025077,"creator":"ups","file_id":"5254","access_level":"closed","file_name":"p231-jung-1.pdf","date_created":"2018-11-02T13:48:10Z"}],"date_created":"2018-10-02T07:34:47Z","status":"public","has_accepted_license":"1","conference":{"location":"Wien","name":"SPAA'18","start_date":"2018-07-17","end_date":"2018-07-18"},"_id":"4565","year":"2018","type":"conference","citation":{"chicago":"Jung, Daniel, Christina Kolb, Christian Scheideler, and Jannik Sundermeier. “Brief Announcement: Competitive Routing in Hybrid Communication Networks.” In Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM Press, 2018. https://doi.org/10.1145/3210377.3210663.","ama":"Jung D, Kolb C, Scheideler C, Sundermeier J. Brief Announcement: Competitive Routing in Hybrid Communication Networks. In: Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM Press; 2018. doi:10.1145/3210377.3210663","apa":"Jung, D., Kolb, C., Scheideler, C., & Sundermeier, J. (2018). Brief Announcement: Competitive Routing in Hybrid Communication Networks. In Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA). Wien: ACM Press. https://doi.org/10.1145/3210377.3210663","bibtex":"@inproceedings{Jung_Kolb_Scheideler_Sundermeier_2018, title={Brief Announcement: Competitive Routing in Hybrid Communication Networks}, DOI={10.1145/3210377.3210663}, booktitle={Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA)}, publisher={ACM Press}, author={Jung, Daniel and Kolb, Christina and Scheideler, Christian and Sundermeier, Jannik}, year={2018} }","mla":"Jung, Daniel, et al. “Brief Announcement: Competitive Routing in Hybrid Communication Networks.” Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM Press, 2018, doi:10.1145/3210377.3210663.","short":"D. Jung, C. Kolb, C. Scheideler, J. Sundermeier, in: Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM Press, 2018.","ieee":"D. Jung, C. Kolb, C. Scheideler, and J. Sundermeier, “Brief Announcement: Competitive Routing in Hybrid Communication Networks,” in Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures (SPAA), Wien, 2018."},"title":"Brief Announcement: Competitive Routing in Hybrid Communication Networks","department":[{"_id":"63"},{"_id":"79"}],"publication_identifier":{"isbn":["9781450357999"]},"publication_status":"published","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"date_updated":"2022-01-06T07:01:12Z","doi":"10.1145/3210377.3210663","language":[{"iso":"eng"}]},{"type":"conference","citation":{"ieee":"F. Meyer auf der Heide and J. S. Schaefer, “Brief Announcement: Communication in Systems of Home Based Mobile Agents,” in Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18, Vienna, 2018.","short":"F. Meyer auf der Heide, J.S. Schaefer, in: Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18, ACM Press, 2018.","mla":"Meyer auf der Heide, Friedhelm, and Johannes Sebastian Schaefer. “Brief Announcement: Communication in Systems of Home Based Mobile Agents.” Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18, ACM Press, 2018, doi:10.1145/3210377.3210662.","bibtex":"@inproceedings{Meyer auf der Heide_Schaefer_2018, title={Brief Announcement: Communication in Systems of Home Based Mobile Agents}, DOI={10.1145/3210377.3210662}, booktitle={Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18}, publisher={ACM Press}, author={Meyer auf der Heide, Friedhelm and Schaefer, Johannes Sebastian}, year={2018} }","ama":"Meyer auf der Heide F, Schaefer JS. Brief Announcement: Communication in Systems of Home Based Mobile Agents. In: Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18. ACM Press; 2018. doi:10.1145/3210377.3210662","apa":"Meyer auf der Heide, F., & Schaefer, J. S. (2018). Brief Announcement: Communication in Systems of Home Based Mobile Agents. In Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18. Vienna: ACM Press. https://doi.org/10.1145/3210377.3210662","chicago":"Meyer auf der Heide, Friedhelm, and Johannes Sebastian Schaefer. “Brief Announcement: Communication in Systems of Home Based Mobile Agents.” In Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA ’18. ACM Press, 2018. https://doi.org/10.1145/3210377.3210662."},"year":"2018","_id":"7570","conference":{"end_date":"2018-07-18","location":"Vienna","name":"30th Symposium on Parallelism in Algorithms and Architectures","start_date":"2018-07-16"},"has_accepted_license":"1","status":"public","date_created":"2019-02-06T14:16:19Z","publisher":"ACM Press","author":[{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"},{"full_name":"Schaefer, Johannes Sebastian","first_name":"Johannes Sebastian","id":"30291","last_name":"Schaefer"}],"file_date_updated":"2019-02-06T14:18:35Z","publication":"Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures - SPAA '18","file":[{"access_level":"closed","file_name":"p359-meyer-auf-der-heide.pdf","date_created":"2019-02-06T14:18:35Z","relation":"main_file","date_updated":"2019-02-06T14:18:35Z","content_type":"application/pdf","file_id":"7576","creator":"jschaef","file_size":1504739}],"ddc":["000"],"user_id":"30291","language":[{"iso":"eng"}],"doi":"10.1145/3210377.3210662","date_updated":"2022-01-06T07:03:40Z","publication_identifier":{"isbn":["9781450357999"]},"publication_status":"published","project":[{"_id":"1","name":"SFB 901"},{"_id":"5","name":"SFB 901 - Subproject A1"},{"name":"SFB 901 - Project Area A","_id":"2"}],"department":[{"_id":"63"}],"title":"Brief Announcement: Communication in Systems of Home Based Mobile Agents"},{"doi":"10.1007/978-3-030-19759-9_4","date_updated":"2022-01-06T07:01:00Z","language":[{"iso":"eng"}],"title":"A Peer-to-Peer based Cloud Storage supporting orthogonal Range Queries of arbitrary Dimension","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"department":[{"_id":"63"},{"_id":"79"}],"conference":{"location":"Helsinki","name":"4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD)","start_date":"2018-08-20","end_date":"2018-08-21"},"_id":"4375","type":"conference","year":"2018","citation":{"mla":"Benter, Markus, et al. “A Peer-to-Peer Based Cloud Storage Supporting Orthogonal Range Queries of Arbitrary Dimension.” Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD), 2018, doi:10.1007/978-3-030-19759-9_4.","bibtex":"@inproceedings{Benter_Knollmann_Meyer auf der Heide_Setzer_Sundermeier_2018, title={A Peer-to-Peer based Cloud Storage supporting orthogonal Range Queries of arbitrary Dimension}, DOI={10.1007/978-3-030-19759-9_4}, booktitle={Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD)}, author={Benter, Markus and Knollmann, Till and Meyer auf der Heide, Friedhelm and Setzer, Alexander and Sundermeier, Jannik}, year={2018} }","apa":"Benter, M., Knollmann, T., Meyer auf der Heide, F., Setzer, A., & Sundermeier, J. (2018). A Peer-to-Peer based Cloud Storage supporting orthogonal Range Queries of arbitrary Dimension. In Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD). Helsinki. https://doi.org/10.1007/978-3-030-19759-9_4","ama":"Benter M, Knollmann T, Meyer auf der Heide F, Setzer A, Sundermeier J. A Peer-to-Peer based Cloud Storage supporting orthogonal Range Queries of arbitrary Dimension. In: Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD). ; 2018. doi:10.1007/978-3-030-19759-9_4","chicago":"Benter, Markus, Till Knollmann, Friedhelm Meyer auf der Heide, Alexander Setzer, and Jannik Sundermeier. “A Peer-to-Peer Based Cloud Storage Supporting Orthogonal Range Queries of Arbitrary Dimension.” In Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD), 2018. https://doi.org/10.1007/978-3-030-19759-9_4.","ieee":"M. Benter, T. Knollmann, F. Meyer auf der Heide, A. Setzer, and J. Sundermeier, “A Peer-to-Peer based Cloud Storage supporting orthogonal Range Queries of arbitrary Dimension,” in Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD), Helsinki, 2018.","short":"M. Benter, T. Knollmann, F. Meyer auf der Heide, A. Setzer, J. Sundermeier, in: Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD), 2018."},"user_id":"14955","ddc":["000"],"abstract":[{"lang":"eng","text":"We present a peer-to-peer network that supports the efficient processing of orthogonal range queries $R=\\bigtimes_{i=1}^{d}[a_i,\\,b_i]$ in a $d$-dimensional point space.\\\\\r\nThe network is the same for each dimension, namely a distance halving network like the one introduced by Naor and Wieder (ACM TALG'07).\r\nWe show how to execute such range queries using $\\mathcal{O}\\left(2^{d'}d\\,\\log m + d\\,|R|\\right)$ hops (and the same number of messages) in total. Here $[m]^d$ is the ground set, $|R|$ is the size and $d'$ the dimension of the queried range.\r\nFurthermore, if the peers form a distributed network, the query can be answered in $\\mathcal{O}\\left(d\\,\\log m + d\\,\\sum_{i=1}^{d}(b_i-a_i+1)\\right)$ communication rounds.\r\nOur algorithms are based on a mapping of the Hilbert Curve through $[m]^d$ to the peers."}],"date_created":"2018-09-11T05:26:59Z","status":"public","has_accepted_license":"1","file":[{"relation":"main_file","success":1,"content_type":"application/pdf","date_updated":"2018-11-27T10:03:33Z","file_id":"5863","creator":"tillk","file_size":1122875,"access_level":"closed","date_created":"2018-11-27T10:03:33Z","file_name":"A Peer-to-Peer based Cloud Storage supporting orthogonal Range Queries of arbitrary Dimension.pdf"}],"keyword":["Distributed Storage","Multi-Dimensional Range Queries","Peer-to-Peer","Hilbert Curve"],"file_date_updated":"2018-11-27T10:03:33Z","publication":"Proceedings of the 4th International Symposium on Algorithmic Aspects of Cloud Computing (ALGOCLOUD)","author":[{"last_name":"Benter","full_name":"Benter, Markus","first_name":"Markus"},{"first_name":"Till","orcid":"0000-0003-2014-4696","full_name":"Knollmann, Till","last_name":"Knollmann","id":"39241"},{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"},{"first_name":"Alexander","full_name":"Setzer, Alexander","last_name":"Setzer","id":"11108"},{"first_name":"Jannik","full_name":"Sundermeier, Jannik","last_name":"Sundermeier","id":"38705"}]},{"citation":{"chicago":"Geromel, Marcel. Mobile Facility Leasing. Universität Paderborn, 2018.","apa":"Geromel, M. (2018). Mobile Facility Leasing. Universität Paderborn.","ama":"Geromel M. Mobile Facility Leasing. Universität Paderborn; 2018.","mla":"Geromel, Marcel. Mobile Facility Leasing. Universität Paderborn, 2018.","bibtex":"@book{Geromel_2018, title={Mobile Facility Leasing}, publisher={Universität Paderborn}, author={Geromel, Marcel}, year={2018} }","short":"M. Geromel, Mobile Facility Leasing, Universität Paderborn, 2018.","ieee":"M. Geromel, Mobile Facility Leasing. Universität Paderborn, 2018."},"type":"bachelorsthesis","year":"2018","language":[{"iso":"eng"}],"supervisor":[{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"}],"_id":"5403","date_updated":"2022-01-06T07:01:51Z","date_created":"2018-11-07T09:20:59Z","project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"status":"public","department":[{"_id":"63"}],"author":[{"full_name":"Geromel, Marcel","first_name":"Marcel","last_name":"Geromel"}],"publisher":"Universität Paderborn","title":"Mobile Facility Leasing","user_id":"477"},{"department":[{"_id":"63"}],"publisher":"Universität Paderborn","author":[{"last_name":"Kolpaczki","first_name":"Patrick Irenäus","full_name":"Kolpaczki, Patrick Irenäus"}],"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"date_created":"2018-11-07T09:23:17Z","status":"public","user_id":"477","title":"Online Algorithmen für das k-Page Migration Problem","supervisor":[{"full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm","id":"15523","last_name":"Meyer auf der Heide"}],"language":[{"iso":"eng"}],"year":"2018","type":"bachelorsthesis","citation":{"mla":"Kolpaczki, Patrick Irenäus. Online Algorithmen Für Das K-Page Migration Problem. Universität Paderborn, 2018.","bibtex":"@book{Kolpaczki_2018, title={Online Algorithmen für das k-Page Migration Problem}, publisher={Universität Paderborn}, author={Kolpaczki, Patrick Irenäus}, year={2018} }","chicago":"Kolpaczki, Patrick Irenäus. Online Algorithmen Für Das K-Page Migration Problem. Universität Paderborn, 2018.","ama":"Kolpaczki PI. Online Algorithmen Für Das K-Page Migration Problem. Universität Paderborn; 2018.","apa":"Kolpaczki, P. I. (2018). Online Algorithmen für das k-Page Migration Problem. Universität Paderborn.","ieee":"P. I. Kolpaczki, Online Algorithmen für das k-Page Migration Problem. Universität Paderborn, 2018.","short":"P.I. Kolpaczki, Online Algorithmen Für Das K-Page Migration Problem, Universität Paderborn, 2018."},"_id":"5404","date_updated":"2022-01-06T07:01:51Z"},{"user_id":"14052","ddc":["000"],"abstract":[{"lang":"eng","text":"We study a new class of games which generalizes congestion games andits bottleneck variant. We introduce congestion games with mixed objectives to modelnetwork scenarios in which players seek to optimize for latency and bandwidths alike.We characterize the (non-)existence of pure Nash equilibria (PNE), the convergenceof improvement dynamics, the quality of equilibria and show the complexity of thedecision problem. For games that do not possess PNE we give bounds on the approx-imation ratio of approximate pure Nash equilibria."}],"date_created":"2017-10-26T14:11:04Z","has_accepted_license":"1","status":"public","volume":36,"file":[{"date_updated":"2018-10-31T16:57:32Z","content_type":"application/pdf","relation":"main_file","success":1,"file_size":605207,"file_id":"5226","creator":"feldi","access_level":"closed","file_name":"Feldotto2018_Article_CongestionGamesWithMixedObject.pdf","date_created":"2018-10-31T16:57:32Z"}],"publication":"Journal of Combinatorial Optimization","file_date_updated":"2018-10-31T16:57:32Z","author":[{"id":"14052","last_name":"Feldotto","orcid":"0000-0003-1348-6516","full_name":"Feldotto, Matthias","first_name":"Matthias"},{"last_name":"Leder","first_name":"Lennart","full_name":"Leder, Lennart"},{"full_name":"Skopalik, Alexander","first_name":"Alexander","id":"40384","last_name":"Skopalik"}],"publisher":"Springer Nature","issue":"4","_id":"669","intvolume":" 36","page":"1145-1167","citation":{"mla":"Feldotto, Matthias, et al. “Congestion Games with Mixed Objectives.” Journal of Combinatorial Optimization, vol. 36, no. 4, Springer Nature, 2018, pp. 1145–67, doi:10.1007/s10878-017-0189-y.","bibtex":"@article{Feldotto_Leder_Skopalik_2018, title={Congestion games with mixed objectives}, volume={36}, DOI={10.1007/s10878-017-0189-y}, number={4}, journal={Journal of Combinatorial Optimization}, publisher={Springer Nature}, author={Feldotto, Matthias and Leder, Lennart and Skopalik, Alexander}, year={2018}, pages={1145–1167} }","chicago":"Feldotto, Matthias, Lennart Leder, and Alexander Skopalik. “Congestion Games with Mixed Objectives.” Journal of Combinatorial Optimization 36, no. 4 (2018): 1145–67. https://doi.org/10.1007/s10878-017-0189-y.","apa":"Feldotto, M., Leder, L., & Skopalik, A. 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Pure Nash Equilibria in Robust Congestion Games via Potential Functions. Universität Paderborn; 2018.","apa":"Kemper, A. (2018). Pure Nash Equilibria in Robust Congestion Games via Potential Functions. Universität Paderborn.","bibtex":"@book{Kemper_2018, title={Pure Nash Equilibria in Robust Congestion Games via Potential Functions}, publisher={Universität Paderborn}, author={Kemper, Arne}, year={2018} }","mla":"Kemper, Arne. Pure Nash Equilibria in Robust Congestion Games via Potential Functions. Universität Paderborn, 2018."},"year":"2018","supervisor":[{"id":"40384","last_name":"Skopalik","full_name":"Skopalik, Alexander","first_name":"Alexander"}],"date_updated":"2022-01-06T06:51:11Z","_id":"1186","author":[{"last_name":"Kemper","full_name":"Kemper, Arne","first_name":"Arne"}],"publisher":"Universität Paderborn","department":[{"_id":"63"},{"_id":"541"}],"status":"public","project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"7","name":"SFB 901 - Subproject A3"}],"date_created":"2018-03-02T13:47:57Z","title":"Pure Nash Equilibria in Robust Congestion Games via Potential Functions","user_id":"14052"},{"supervisor":[{"full_name":"Skopalik, Alexander","first_name":"Alexander","id":"40384","last_name":"Skopalik"}],"year":"2018","type":"bachelorsthesis","citation":{"apa":"Nachtigall, M. (2018). Scenario-driven Strategy Analysis in a n-player Composition Game Model. Universität Paderborn.","ama":"Nachtigall M. Scenario-Driven Strategy Analysis in a n-Player Composition Game Model. Universität Paderborn; 2018.","chicago":"Nachtigall, Marcel. Scenario-Driven Strategy Analysis in a n-Player Composition Game Model. Universität Paderborn, 2018.","bibtex":"@book{Nachtigall_2018, title={Scenario-driven Strategy Analysis in a n-player Composition Game Model}, publisher={Universität Paderborn}, author={Nachtigall, Marcel}, year={2018} }","mla":"Nachtigall, Marcel. Scenario-Driven Strategy Analysis in a n-Player Composition Game Model. Universität Paderborn, 2018.","short":"M. Nachtigall, Scenario-Driven Strategy Analysis in a n-Player Composition Game Model, Universität Paderborn, 2018.","ieee":"M. Nachtigall, Scenario-driven Strategy Analysis in a n-player Composition Game Model. Universität Paderborn, 2018."},"_id":"1187","date_updated":"2022-01-06T06:51:11Z","project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A3","_id":"7"}],"date_created":"2018-03-02T13:49:39Z","status":"public","department":[{"_id":"63"},{"_id":"541"}],"publisher":"Universität Paderborn","author":[{"last_name":"Nachtigall","full_name":"Nachtigall, Marcel","first_name":"Marcel"}],"user_id":"14052","title":"Scenario-driven Strategy Analysis in a n-player Composition Game Model"},{"user_id":"14052","title":"Learning deterministic bandit behaviour form compositions","department":[{"_id":"63"},{"_id":"541"}],"author":[{"full_name":"Kempf, Jérôme","first_name":"Jérôme","last_name":"Kempf"}],"publisher":"Universität Paderborn","date_created":"2018-03-02T13:51:14Z","project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A3","_id":"7"}],"status":"public","date_updated":"2022-01-06T06:51:11Z","_id":"1188","supervisor":[{"id":"40384","last_name":"Skopalik","full_name":"Skopalik, Alexander","first_name":"Alexander"}],"type":"bachelorsthesis","year":"2018","citation":{"apa":"Kempf, J. (2018). Learning deterministic bandit behaviour form compositions. Universität Paderborn.","ama":"Kempf J. Learning Deterministic Bandit Behaviour Form Compositions. Universität Paderborn; 2018.","chicago":"Kempf, Jérôme. Learning Deterministic Bandit Behaviour Form Compositions. Universität Paderborn, 2018.","mla":"Kempf, Jérôme. Learning Deterministic Bandit Behaviour Form Compositions. Universität Paderborn, 2018.","bibtex":"@book{Kempf_2018, title={Learning deterministic bandit behaviour form compositions}, publisher={Universität Paderborn}, author={Kempf, Jérôme}, year={2018} }","short":"J. Kempf, Learning Deterministic Bandit Behaviour Form Compositions, Universität Paderborn, 2018.","ieee":"J. Kempf, Learning deterministic bandit behaviour form compositions. Universität Paderborn, 2018."}},{"doi":"10.17619/UNIPB/1-271","date_updated":"2022-01-06T06:51:17Z","_id":"1209","supervisor":[{"first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm","last_name":"Meyer auf der Heide","id":"15523"}],"language":[{"iso":"eng"}],"citation":{"short":"D. Jung, Local Strategies for Swarm Formations on a Grid, Universität Paderborn, 2018.","ieee":"D. Jung, Local Strategies for Swarm Formations on a Grid. Universität Paderborn, 2018.","apa":"Jung, D. (2018). Local Strategies for Swarm Formations on a Grid. Universität Paderborn. https://doi.org/10.17619/UNIPB/1-271","ama":"Jung D. Local Strategies for Swarm Formations on a Grid. Universität Paderborn; 2018. doi:10.17619/UNIPB/1-271","chicago":"Jung, Daniel. Local Strategies for Swarm Formations on a Grid. Universität Paderborn, 2018. https://doi.org/10.17619/UNIPB/1-271.","mla":"Jung, Daniel. Local Strategies for Swarm Formations on a Grid. Universität Paderborn, 2018, doi:10.17619/UNIPB/1-271.","bibtex":"@book{Jung_2018, title={Local Strategies for Swarm Formations on a Grid}, DOI={10.17619/UNIPB/1-271}, publisher={Universität Paderborn}, author={Jung, Daniel}, year={2018} }"},"type":"dissertation","year":"2018","related_material":{"link":[{"relation":"confirmation","url":"https://doi.org/10.17619/UNIPB/1-271"}]},"user_id":"15415","title":"Local Strategies for Swarm Formations on a Grid","abstract":[{"lang":"eng","text":"My dissertation deals with the Gathering problem for swarms of n point-shaped robots on a grid, in which all robots of the swarm are supposed to gather at a previously undefined point. Special attention is paid to the strong limitation of robot capabilities. These include in particular the lack of global control, a global compass, global visibility and (global) communication skills. Furthermore, all robots are identical. The robots are given only local abilities. This includes a constant range of vision. The robots all work completely synchronously. In this work we present and analyze three different Gathering strategies in different robot models. We formally prove correctness and total running time: Chapter 4 focuses on minimizing the available robot capabilities. The underlying strategy completes the gathering in O(n^2) time. For the following Chapters 5 and 6, the aim is to optimize the total running time under using only local robot capabilities: We additionally allow a constant-sized memory and a constant number of locally visible statuses (lights, flags). For the strategies of both chapters we show an asymptotically optimal running time of O(n). Unlike in Chapters 4 and 5, we additionally restrict connectivity and vision to an initially given chain connectivity in Chapter 6, where two chain neighbors must have a distance of 1 from each other. A robot can only see and interact with a constant number of its direct chain neighbors."}],"status":"public","project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A1","_id":"5"}],"date_created":"2018-03-13T10:26:16Z","publication_identifier":{"isbn":["978-3-942647-99-1"]},"author":[{"full_name":"Jung, Daniel","first_name":"Daniel","id":"37827","last_name":"Jung"}],"publisher":"Universität Paderborn","department":[{"_id":"63"}]},{"doi":"10.1007/978-3-319-98355-4_18","date_updated":"2022-01-06T06:52:50Z","_id":"16392","year":"2018","type":"book_chapter","citation":{"ieee":"B. Feldkord, M. Malatyali, and F. Meyer auf der Heide, “A Dynamic Distributed Data Structure for Top-k and k-Select Queries,” in Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications, Cham, 2018.","short":"B. Feldkord, M. Malatyali, F. Meyer auf der Heide, in: Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications, Cham, 2018.","bibtex":"@inbook{Feldkord_Malatyali_Meyer auf der Heide_2018, place={Cham}, title={A Dynamic Distributed Data Structure for Top-k and k-Select Queries}, DOI={10.1007/978-3-319-98355-4_18}, booktitle={Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications}, author={Feldkord, Björn and Malatyali, Manuel and Meyer auf der Heide, Friedhelm}, year={2018} }","mla":"Feldkord, Björn, et al. “A Dynamic Distributed Data Structure for Top-k and k-Select Queries.” Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications, 2018, doi:10.1007/978-3-319-98355-4_18.","ama":"Feldkord B, Malatyali M, Meyer auf der Heide F. A Dynamic Distributed Data Structure for Top-k and k-Select Queries. In: Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications. Cham; 2018. doi:10.1007/978-3-319-98355-4_18","apa":"Feldkord, B., Malatyali, M., & Meyer auf der Heide, F. (2018). A Dynamic Distributed Data Structure for Top-k and k-Select Queries. In Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications. Cham. https://doi.org/10.1007/978-3-319-98355-4_18","chicago":"Feldkord, Björn, Manuel Malatyali, and Friedhelm Meyer auf der Heide. “A Dynamic Distributed Data Structure for Top-k and k-Select Queries.” In Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications. Cham, 2018. https://doi.org/10.1007/978-3-319-98355-4_18."},"language":[{"iso":"eng"}],"title":"A Dynamic Distributed Data Structure for Top-k and k-Select Queries","user_id":"15415","place":"Cham","publication_identifier":{"issn":["0302-9743","1611-3349"],"isbn":["9783319125671","9783319125688"]},"publication_status":"published","status":"public","date_created":"2020-04-03T07:04:59Z","author":[{"full_name":"Feldkord, Björn","first_name":"Björn","id":"22704","last_name":"Feldkord"},{"last_name":"Malatyali","full_name":"Malatyali, Manuel","first_name":"Manuel"},{"full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm","id":"15523","last_name":"Meyer auf der Heide"}],"publication":"Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications","department":[{"_id":"63"}]},{"title":"Pure Nash equilibria in restricted budget games","publication_identifier":{"issn":["1382-6905","1573-2886"]},"publication_status":"epub_ahead","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area A","_id":"2"},{"_id":"7","name":"SFB 901 - Subproject A3"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"department":[{"_id":"63"},{"_id":"541"}],"doi":"10.1007/s10878-018-0269-7","date_updated":"2022-01-06T06:51:42Z","language":[{"iso":"eng"}],"ddc":["000"],"user_id":"14052","abstract":[{"lang":"eng","text":"In budget games, players compete over resources with finite budgets. For every resource, a player has a specific demand and as a strategy, he chooses a subset of resources. If the total demand on a resource does not exceed its budget, the utility of each player who chose that resource equals his demand. Otherwise, the budget is shared proportionally. In the general case, pure Nash equilibria (NE) do not exist for such games. In this paper, we consider the natural classes of singleton and matroid budget games with additional constraints and show that for each, pure NE can be guaranteed. In addition, we introduce a lexicographical potential function to prove that every matroid budget game has an approximate pure NE which depends on the largest ratio between the different demands of each individual player."}],"status":"public","has_accepted_license":"1","date_created":"2018-03-18T11:12:49Z","publisher":"Springer Nature","author":[{"full_name":"Drees, Maximilian","first_name":"Maximilian","last_name":"Drees"},{"last_name":"Feldotto","id":"14052","first_name":"Matthias","full_name":"Feldotto, Matthias","orcid":"0000-0003-1348-6516"},{"last_name":"Riechers","first_name":"Sören","full_name":"Riechers, Sören"},{"id":"40384","last_name":"Skopalik","full_name":"Skopalik, Alexander","first_name":"Alexander"}],"publication":"Journal of Combinatorial Optimization","file_date_updated":"2018-10-31T16:56:13Z","file":[{"access_level":"closed","date_created":"2018-10-31T16:56:13Z","file_name":"Drees2018_Article_PureNashEquilibriaInRestricted.pdf","content_type":"application/pdf","date_updated":"2018-10-31T16:56:13Z","relation":"main_file","file_size":561187,"creator":"feldi","file_id":"5225"}],"_id":"1369","year":"2018","citation":{"short":"M. Drees, M. Feldotto, S. Riechers, A. Skopalik, Journal of Combinatorial Optimization (2018).","ieee":"M. Drees, M. Feldotto, S. Riechers, and A. Skopalik, “Pure Nash equilibria in restricted budget games,” Journal of Combinatorial Optimization, 2018.","apa":"Drees, M., Feldotto, M., Riechers, S., & Skopalik, A. (2018). Pure Nash equilibria in restricted budget games. Journal of Combinatorial Optimization. https://doi.org/10.1007/s10878-018-0269-7","ama":"Drees M, Feldotto M, Riechers S, Skopalik A. Pure Nash equilibria in restricted budget games. Journal of Combinatorial Optimization. 2018. doi:10.1007/s10878-018-0269-7","chicago":"Drees, Maximilian, Matthias Feldotto, Sören Riechers, and Alexander Skopalik. “Pure Nash Equilibria in Restricted Budget Games.” Journal of Combinatorial Optimization, 2018. https://doi.org/10.1007/s10878-018-0269-7.","mla":"Drees, Maximilian, et al. “Pure Nash Equilibria in Restricted Budget Games.” Journal of Combinatorial Optimization, Springer Nature, 2018, doi:10.1007/s10878-018-0269-7.","bibtex":"@article{Drees_Feldotto_Riechers_Skopalik_2018, title={Pure Nash equilibria in restricted budget games}, DOI={10.1007/s10878-018-0269-7}, journal={Journal of Combinatorial Optimization}, publisher={Springer Nature}, author={Drees, Maximilian and Feldotto, Matthias and Riechers, Sören and Skopalik, Alexander}, year={2018} }"},"type":"journal_article"},{"department":[{"_id":"63"}],"author":[{"last_name":"Li","first_name":"Shouwei","full_name":"Li, Shouwei"}],"date_created":"2020-09-21T13:52:09Z","status":"public","place":"Universität Paderborn","user_id":"15415","related_material":{"link":[{"relation":"confirmation","url":"10.17619/UNIPB/1-252 "}]},"title":"Parallel fixed parameter tractable problems","supervisor":[{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"}],"language":[{"iso":"eng"}],"year":"2017","citation":{"short":"S. Li, Parallel Fixed Parameter Tractable Problems, Universität Paderborn, 2017.","ieee":"S. Li, Parallel fixed parameter tractable problems. Universität Paderborn, 2017.","apa":"Li, S. (2017). Parallel fixed parameter tractable problems. Universität Paderborn. https://doi.org/10.17619/UNIPB/1-252","ama":"Li S. Parallel Fixed Parameter Tractable Problems. Universität Paderborn; 2017. doi:10.17619/UNIPB/1-252","chicago":"Li, Shouwei. Parallel Fixed Parameter Tractable Problems. Universität Paderborn, 2017. https://doi.org/10.17619/UNIPB/1-252.","mla":"Li, Shouwei. Parallel Fixed Parameter Tractable Problems. 2017, doi:10.17619/UNIPB/1-252.","bibtex":"@book{Li_2017, place={Universität Paderborn}, title={Parallel fixed parameter tractable problems}, DOI={10.17619/UNIPB/1-252}, author={Li, Shouwei}, year={2017} }"},"type":"dissertation","_id":"19604","date_updated":"2022-01-06T06:54:07Z","doi":"10.17619/UNIPB/1-252"},{"_id":"2851","date_updated":"2022-01-06T06:58:08Z","conference":{"end_date":"Sept 8, 2017","start_date":"Sept 6, 2017","location":"Berlin"},"doi":"10.1007/978-3-319-89920-6_57","citation":{"mla":"Markarian, Christine. “Leasing with Uncertainty.” International Conference on Operations Research (OR), 2017, doi:10.1007/978-3-319-89920-6_57.","bibtex":"@inproceedings{Markarian_2017, title={Leasing with Uncertainty}, DOI={10.1007/978-3-319-89920-6_57}, booktitle={International Conference on Operations Research (OR)}, author={Markarian, Christine}, year={2017} }","apa":"Markarian, C. (2017). Leasing with Uncertainty. In International Conference on Operations Research (OR). Berlin. https://doi.org/10.1007/978-3-319-89920-6_57","ama":"Markarian C. Leasing with Uncertainty. In: International Conference on Operations Research (OR). ; 2017. doi:10.1007/978-3-319-89920-6_57","chicago":"Markarian, Christine. “Leasing with Uncertainty.” In International Conference on Operations Research (OR), 2017. https://doi.org/10.1007/978-3-319-89920-6_57.","ieee":"C. Markarian, “Leasing with Uncertainty,” in International Conference on Operations Research (OR), Berlin, 2017.","short":"C. Markarian, in: International Conference on Operations Research (OR), 2017."},"type":"conference","year":"2017","language":[{"iso":"eng"}],"title":"Leasing with Uncertainty","ddc":["000"],"user_id":"14052","author":[{"id":"37612","last_name":"Markarian","full_name":"Markarian, Christine","first_name":"Christine"}],"file_date_updated":"2018-11-13T13:16:30Z","publication":"International Conference on Operations Research (OR)","department":[{"_id":"63"}],"file":[{"access_level":"closed","file_name":"Markarian2018_Chapter_LeasingWithUncertainty.pdf","date_created":"2018-11-13T13:16:30Z","success":1,"relation":"main_file","date_updated":"2018-11-13T13:16:30Z","content_type":"application/pdf","file_id":"5537","creator":"feldi","file_size":257103}],"has_accepted_license":"1","status":"public","date_created":"2018-05-24T08:44:43Z","project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"name":"SFB 901 - Subproject A1","_id":"5"}]},{"status":"public","date_created":"2021-09-14T12:41:58Z","publication_identifier":{"issn":["0302-9743","1611-3349"]},"publication_status":"published","author":[{"last_name":"Khaluf","full_name":"Khaluf, Yara","first_name":"Yara"},{"full_name":"Markarian, Christine","first_name":"Christine","last_name":"Markarian"},{"full_name":"Simoens, Pieter","first_name":"Pieter","last_name":"Simoens"},{"full_name":"Reina, Andreagiovanni","first_name":"Andreagiovanni","last_name":"Reina"}],"publication":"International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017)","department":[{"_id":"63"}],"user_id":"15415","title":"Scheduling Access to Shared Space in Multi-robot Systems","place":"Cham","abstract":[{"text":"Through this study, we introduce the idea of applying scheduling techniques to allocate spatial resources that are shared among multiple robots moving in a static environment and having temporal constraints on the arrival time to destinations. To illustrate this idea, we present an exemplified algorithm that plans and assigns a motion path to each robot. The considered problem is particularly challenging because: (i) the robots share the same environment and thus the planner must take into account overlapping paths which cannot happen at the same time; (ii) there are time deadlines thus the planner must deal with temporal constraints; (iii) new requests arrive without a priori knowledge thus the planner must be able to add new paths online and adjust old plans; (iv) the robot motion is subject to noise thus the planner must be reactive to adapt to online changes. We showcase the functioning of the proposed algorithm through a set of agent-based simulations.","lang":"eng"}],"language":[{"iso":"eng"}],"citation":{"bibtex":"@inproceedings{Khaluf_Markarian_Simoens_Reina_2017, place={Cham}, title={Scheduling Access to Shared Space in Multi-robot Systems}, DOI={10.1007/978-3-319-59930-4_12}, booktitle={International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017)}, author={Khaluf, Yara and Markarian, Christine and Simoens, Pieter and Reina, Andreagiovanni}, year={2017} }","mla":"Khaluf, Yara, et al. “Scheduling Access to Shared Space in Multi-Robot Systems.” International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017), 2017, doi:10.1007/978-3-319-59930-4_12.","chicago":"Khaluf, Yara, Christine Markarian, Pieter Simoens, and Andreagiovanni Reina. “Scheduling Access to Shared Space in Multi-Robot Systems.” In International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017). Cham, 2017. https://doi.org/10.1007/978-3-319-59930-4_12.","ama":"Khaluf Y, Markarian C, Simoens P, Reina A. Scheduling Access to Shared Space in Multi-robot Systems. In: International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017). ; 2017. doi:10.1007/978-3-319-59930-4_12","apa":"Khaluf, Y., Markarian, C., Simoens, P., & Reina, A. (2017). Scheduling Access to Shared Space in Multi-robot Systems. International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017). https://doi.org/10.1007/978-3-319-59930-4_12","ieee":"Y. Khaluf, C. Markarian, P. Simoens, and A. Reina, “Scheduling Access to Shared Space in Multi-robot Systems,” 2017, doi: 10.1007/978-3-319-59930-4_12.","short":"Y. Khaluf, C. Markarian, P. Simoens, A. Reina, in: International Conference on Practical Applications of Agents and Multi-Agent Systems (PAAMS 2017), Cham, 2017."},"year":"2017","type":"conference","doi":"10.1007/978-3-319-59930-4_12","date_updated":"2022-01-06T06:56:19Z","_id":"24398"},{"date_updated":"2022-01-06T06:50:58Z","doi":"10.1007/978-3-319-57586-5_19","series_title":"LNCS","external_id":{"arxiv":["1701.07304"]},"title":"Congestion Games with Complementarities","department":[{"_id":"63"},{"_id":"541"}],"project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Subprojekt A3","_id":"7"},{"name":"SFB 901 - Project Area A","_id":"2"}],"_id":"112","type":"conference","year":"2017","citation":{"ama":"Feldotto M, Leder L, Skopalik A. Congestion Games with Complementarities. In: Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC). LNCS. ; 2017:222--233. doi:10.1007/978-3-319-57586-5_19","apa":"Feldotto, M., Leder, L., & Skopalik, A. (2017). Congestion Games with Complementarities. In Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC) (pp. 222--233). https://doi.org/10.1007/978-3-319-57586-5_19","chicago":"Feldotto, Matthias, Lennart Leder, and Alexander Skopalik. “Congestion Games with Complementarities.” In Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC), 222--233. LNCS, 2017. https://doi.org/10.1007/978-3-319-57586-5_19.","mla":"Feldotto, Matthias, et al. “Congestion Games with Complementarities.” Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC), 2017, pp. 222--233, doi:10.1007/978-3-319-57586-5_19.","bibtex":"@inproceedings{Feldotto_Leder_Skopalik_2017, series={LNCS}, title={Congestion Games with Complementarities}, DOI={10.1007/978-3-319-57586-5_19}, booktitle={Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC)}, author={Feldotto, Matthias and Leder, Lennart and Skopalik, Alexander}, year={2017}, pages={222--233}, collection={LNCS} }","short":"M. Feldotto, L. Leder, A. Skopalik, in: Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC), 2017, pp. 222--233.","ieee":"M. Feldotto, L. Leder, and A. Skopalik, “Congestion Games with Complementarities,” in Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC), 2017, pp. 222--233."},"page":"222--233","abstract":[{"text":"We study a model of selfish resource allocation that seeks to incorporate dependencies among resources as they exist in in modern networked environments. Our model is inspired by utility functions with constant elasticity of substitution (CES) which is a well-studied model in economics. We consider congestion games with different aggregation functions. In particular, we study $L_p$ norms and analyze the existence and complexity of (approximate) pure Nash equilibria. Additionally, we give an almost tight characterization based on monotonicity properties to describe the set of aggregation functions that guarantee the existence of pure Nash equilibria.","lang":"eng"}],"user_id":"14052","ddc":["040"],"file":[{"date_created":"2018-03-21T13:05:37Z","file_name":"112-FeldottoLederSkopalik2017.pdf","access_level":"closed","file_size":264089,"file_id":"1566","creator":"florida","content_type":"application/pdf","date_updated":"2018-03-21T13:05:37Z","relation":"main_file","success":1}],"author":[{"full_name":"Feldotto, Matthias","orcid":"0000-0003-1348-6516","first_name":"Matthias","id":"14052","last_name":"Feldotto"},{"last_name":"Leder","full_name":"Leder, Lennart","first_name":"Lennart"},{"first_name":"Alexander","full_name":"Skopalik, Alexander","last_name":"Skopalik","id":"40384"}],"file_date_updated":"2018-03-21T13:05:37Z","publication":"Proceedings of the 10th International Conference on Algorithms and Complexity (CIAC)","has_accepted_license":"1","status":"public","date_created":"2017-10-17T12:41:13Z"},{"project":[{"name":"SFB 901","_id":"1"},{"_id":"7","name":"SFB 901 - Subprojekt A3"},{"_id":"2","name":"SFB 901 - Project Area A"}],"department":[{"_id":"63"},{"_id":"541"}],"title":"Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games","external_id":{"arxiv":["1710.01634"]},"language":[{"iso":"eng"}],"doi":"10.1007/978-3-319-71924-5_14","date_updated":"2022-01-06T06:50:59Z","status":"public","has_accepted_license":"1","date_created":"2017-10-17T12:41:13Z","file":[{"date_created":"2018-10-31T17:01:32Z","file_name":"Feldotto2017_Chapter_ComputingApproximatePureNashEq.pdf","access_level":"closed","file_id":"5231","creator":"feldi","file_size":279055,"relation":"main_file","success":1,"content_type":"application/pdf","date_updated":"2018-10-31T17:01:32Z"}],"author":[{"full_name":"Feldotto, Matthias","orcid":"0000-0003-1348-6516","first_name":"Matthias","id":"14052","last_name":"Feldotto"},{"full_name":"Gairing, Martin","first_name":"Martin","last_name":"Gairing"},{"first_name":"Grammateia","full_name":"Kotsialou, Grammateia","last_name":"Kotsialou"},{"last_name":"Skopalik","id":"40384","first_name":"Alexander","full_name":"Skopalik, Alexander"}],"file_date_updated":"2018-10-31T17:01:32Z","publication":"Proceedings of the 13th International Conference on Web and Internet Economics (WINE)","user_id":"14052","ddc":["000"],"abstract":[{"text":"We study the computation of approximate pure Nash equilibria in Shapley value (SV) weighted congestion games, introduced in [19]. This class of games considers weighted congestion games in which Shapley values are used as an alternative (to proportional shares) for distributing the total cost of each resource among its users. We focus on the interesting subclass of such games with polynomial resource cost functions and present an algorithm that computes approximate pure Nash equilibria with a polynomial number of strategy updates. Since computing a single strategy update is hard, we apply sampling techniques which allow us to achieve polynomial running time. The algorithm builds on the algorithmic ideas of [7], however, to the best of our knowledge, this is the first algorithmic result on computation of approximate equilibria using other than proportional shares as player costs in this setting. We present a novel relation that approximates the Shapley value of a player by her proportional share and vice versa. As side results, we upper bound the approximate price of anarchy of such games and significantly improve the best known factor for computing approximate pure Nash equilibria in weighted congestion games of [7].","lang":"eng"}],"type":"conference","year":"2017","citation":{"mla":"Feldotto, Matthias, et al. “Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games.” Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017, doi:10.1007/978-3-319-71924-5_14.","bibtex":"@inproceedings{Feldotto_Gairing_Kotsialou_Skopalik_2017, title={Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games}, DOI={10.1007/978-3-319-71924-5_14}, booktitle={Proceedings of the 13th International Conference on Web and Internet Economics (WINE)}, author={Feldotto, Matthias and Gairing, Martin and Kotsialou, Grammateia and Skopalik, Alexander}, year={2017} }","ama":"Feldotto M, Gairing M, Kotsialou G, Skopalik A. Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games. In: Proceedings of the 13th International Conference on Web and Internet Economics (WINE). ; 2017. doi:10.1007/978-3-319-71924-5_14","apa":"Feldotto, M., Gairing, M., Kotsialou, G., & Skopalik, A. (2017). Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games. In Proceedings of the 13th International Conference on Web and Internet Economics (WINE). https://doi.org/10.1007/978-3-319-71924-5_14","chicago":"Feldotto, Matthias, Martin Gairing, Grammateia Kotsialou, and Alexander Skopalik. “Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games.” In Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017. https://doi.org/10.1007/978-3-319-71924-5_14.","ieee":"M. Feldotto, M. Gairing, G. Kotsialou, and A. Skopalik, “Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games,” in Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017.","short":"M. Feldotto, M. Gairing, G. Kotsialou, A. Skopalik, in: Proceedings of the 13th International Conference on Web and Internet Economics (WINE), 2017."},"_id":"113"},{"place":"Cham","title":"Filtering Undesirable Flows in Networks","department":[{"_id":"63"},{"_id":"541"}],"publication_identifier":{"isbn":["978-3-319-71150-8"]},"date_updated":"2022-01-06T06:53:16Z","doi":"10.1007/978-3-319-71150-8_1","series_title":"Lecture Notes in Computer Science","language":[{"iso":"eng"}],"extern":"1","user_id":"83983","author":[{"id":"83983","last_name":"Polevoy","full_name":"Polevoy, Gleb","first_name":"Gleb"},{"last_name":"Trajanovski","first_name":"Stojan","full_name":"Trajanovski, Stojan"},{"full_name":"Grosso, Paola","first_name":"Paola","last_name":"Grosso"},{"last_name":"de Laat","first_name":"Cees","full_name":"de Laat, Cees"}],"publisher":"Springer International Publishing","keyword":["flow","filter","MMSA","set cover","approximation","local ratio algorithm"],"publication":"Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I","status":"public","date_created":"2020-08-06T15:19:48Z","_id":"17652","type":"conference","citation":{"ieee":"G. Polevoy, S. Trajanovski, P. Grosso, and C. de Laat, “Filtering Undesirable Flows in Networks,” in Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I, 2017, pp. 3–17.","short":"G. Polevoy, S. Trajanovski, P. Grosso, C. de Laat, in: Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I, Springer International Publishing, Cham, 2017, pp. 3–17.","bibtex":"@inproceedings{Polevoy_Trajanovski_Grosso_de Laat_2017, place={Cham}, series={Lecture Notes in Computer Science}, title={Filtering Undesirable Flows in Networks}, DOI={10.1007/978-3-319-71150-8_1}, booktitle={Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I}, publisher={Springer International Publishing}, author={Polevoy, Gleb and Trajanovski, Stojan and Grosso, Paola and de Laat, Cees}, year={2017}, pages={3–17}, collection={Lecture Notes in Computer Science} }","mla":"Polevoy, Gleb, et al. “Filtering Undesirable Flows in Networks.” Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I, Springer International Publishing, 2017, pp. 3–17, doi:10.1007/978-3-319-71150-8_1.","apa":"Polevoy, G., Trajanovski, S., Grosso, P., & de Laat, C. (2017). Filtering Undesirable Flows in Networks. In Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I (pp. 3–17). Cham: Springer International Publishing. https://doi.org/10.1007/978-3-319-71150-8_1","ama":"Polevoy G, Trajanovski S, Grosso P, de Laat C. Filtering Undesirable Flows in Networks. In: Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I. Lecture Notes in Computer Science. Cham: Springer International Publishing; 2017:3-17. doi:10.1007/978-3-319-71150-8_1","chicago":"Polevoy, Gleb, Stojan Trajanovski, Paola Grosso, and Cees de Laat. “Filtering Undesirable Flows in Networks.” In Combinatorial Optimization and Applications: 11th International Conference, COCOA 2017, Shanghai, China, December 16-18, 2017, Proceedings, Part I, 3–17. Lecture Notes in Computer Science. Cham: Springer International Publishing, 2017. https://doi.org/10.1007/978-3-319-71150-8_1."},"year":"2017","page":"3-17"},{"language":[{"iso":"eng"}],"year":"2017","citation":{"short":"G. Polevoy, M.M. de Weerdt, in: Proceedings of the 29th Benelux Conference on Artificial Intelligence, Springer, 2017.","ieee":"G. Polevoy and M. M. de Weerdt, “Reciprocation Effort Games,” in Proceedings of the 29th Benelux Conference on Artificial Intelligence, 2017.","ama":"Polevoy G, de Weerdt MM. Reciprocation Effort Games. In: Proceedings of the 29th Benelux Conference on Artificial Intelligence. CCIS. Springer; 2017.","apa":"Polevoy, G., & de Weerdt, M. M. (2017). Reciprocation Effort Games. In Proceedings of the 29th Benelux Conference on Artificial Intelligence. Springer.","chicago":"Polevoy, Gleb, and M.M. de Weerdt. “Reciprocation Effort Games.” In Proceedings of the 29th Benelux Conference on Artificial Intelligence. CCIS. Springer, 2017.","bibtex":"@inproceedings{Polevoy_de Weerdt_2017, series={CCIS}, title={Reciprocation Effort Games}, booktitle={Proceedings of the 29th Benelux Conference on Artificial Intelligence}, publisher={Springer}, author={Polevoy, Gleb and de Weerdt, M.M.}, year={2017}, collection={CCIS} }","mla":"Polevoy, Gleb, and M. M. de Weerdt. “Reciprocation Effort Games.” Proceedings of the 29th Benelux Conference on Artificial Intelligence, Springer, 2017."},"type":"conference","series_title":"CCIS","_id":"17653","date_updated":"2022-01-06T06:53:16Z","status":"public","date_created":"2020-08-06T15:20:09Z","author":[{"id":"83983","last_name":"Polevoy","full_name":"Polevoy, Gleb","first_name":"Gleb"},{"last_name":"de Weerdt","first_name":"M.M.","full_name":"de Weerdt, M.M."}],"publisher":"Springer","publication":"Proceedings of the 29th Benelux Conference on Artificial Intelligence","department":[{"_id":"63"},{"_id":"541"}],"keyword":["interaction","reciprocation","contribute","shared effort","curbing","convergence","threshold","Nash equilibrium","social welfare","efficiency","price of anarchy","price of stability"],"user_id":"83983","title":"Reciprocation Effort Games","extern":"1"},{"date_updated":"2022-01-06T06:53:16Z","_id":"17654","language":[{"iso":"eng"}],"year":"2017","type":"conference","citation":{"short":"G. Polevoy, M.M. de Weerdt, in: Proceedings of the 29th Benelux Conference on Artificial Intelligence, Springer, 2017.","ieee":"G. Polevoy and M. M. de Weerdt, “Competition between Cooperative Projects,” in Proceedings of the 29th Benelux Conference on Artificial Intelligence, 2017.","chicago":"Polevoy, Gleb, and M.M. de Weerdt. “Competition between Cooperative Projects.” In Proceedings of the 29th Benelux Conference on Artificial Intelligence. CCIS. Springer, 2017.","apa":"Polevoy, G., & de Weerdt, M. M. (2017). Competition between Cooperative Projects. In Proceedings of the 29th Benelux Conference on Artificial Intelligence. Springer.","ama":"Polevoy G, de Weerdt MM. Competition between Cooperative Projects. In: Proceedings of the 29th Benelux Conference on Artificial Intelligence. CCIS. Springer; 2017.","bibtex":"@inproceedings{Polevoy_de Weerdt_2017, series={CCIS}, title={Competition between Cooperative Projects}, booktitle={Proceedings of the 29th Benelux Conference on Artificial Intelligence}, publisher={Springer}, author={Polevoy, Gleb and de Weerdt, M.M.}, year={2017}, collection={CCIS} }","mla":"Polevoy, Gleb, and M. M. de Weerdt. “Competition between Cooperative Projects.” Proceedings of the 29th Benelux Conference on Artificial Intelligence, Springer, 2017."},"series_title":"CCIS","user_id":"83983","title":"Competition between Cooperative Projects","extern":"1","date_created":"2020-08-06T15:20:19Z","status":"public","publication":"Proceedings of the 29th Benelux Conference on Artificial Intelligence","keyword":["agents","projects","contribute","shared effort game","competition","quota","threshold","Nash equilibrium","social welfare","efficiency","price of anarchy","price of stability"],"department":[{"_id":"63"},{"_id":"541"}],"author":[{"id":"83983","last_name":"Polevoy","full_name":"Polevoy, Gleb","first_name":"Gleb"},{"last_name":"de Weerdt","first_name":"M.M.","full_name":"de Weerdt, M.M."}],"publisher":"Springer"},{"author":[{"last_name":"Fischer","id":"146","first_name":"Matthias","full_name":"Fischer, Matthias"},{"full_name":"Jung, Daniel","first_name":"Daniel","id":"37827","last_name":"Jung"},{"last_name":"Meyer auf der Heide","id":"15523","first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm"}],"publication":"arXiv:1702.03400","department":[{"_id":"63"}],"status":"public","date_created":"2020-08-11T13:48:38Z","abstract":[{"text":"We consider a swarm of $n$ autonomous mobile robots, distributed on a\r\n2-dimensional grid. A basic task for such a swarm is the gathering process: All\r\nrobots have to gather at one (not predefined) place. A common local model for\r\nextremely simple robots is the following: The robots do not have a common\r\ncompass, only have a constant viewing radius, are autonomous and\r\nindistinguishable, can move at most a constant distance in each step, cannot\r\ncommunicate, are oblivious and do not have flags or states. The only gathering\r\nalgorithm under this robot model, with known runtime bounds, needs\r\n$\\mathcal{O}(n^2)$ rounds and works in the Euclidean plane. The underlying time\r\nmodel for the algorithm is the fully synchronous $\\mathcal{FSYNC}$ model. On\r\nthe other side, in the case of the 2-dimensional grid, the only known gathering\r\nalgorithms for the same time and a similar local model additionally require a\r\nconstant memory, states and \"flags\" to communicate these states to neighbors in\r\nviewing range. They gather in time $\\mathcal{O}(n)$.\r\n In this paper we contribute the (to the best of our knowledge) first\r\ngathering algorithm on the grid that works under the same simple local model as\r\nthe above mentioned Euclidean plane strategy, i.e., without memory (oblivious),\r\n\"flags\" and states. We prove its correctness and an $\\mathcal{O}(n^2)$ time\r\nbound in the fully synchronous $\\mathcal{FSYNC}$ time model. This time bound\r\nmatches the time bound of the best known algorithm for the Euclidean plane\r\nmentioned above. We say gathering is done if all robots are located within a\r\n$2\\times 2$ square, because in $\\mathcal{FSYNC}$ such configurations cannot be\r\nsolved.","lang":"eng"}],"user_id":"15415","title":"Gathering Anonymous, Oblivious Robots on a Grid","language":[{"iso":"eng"}],"type":"preprint","year":"2017","citation":{"mla":"Fischer, Matthias, et al. “Gathering Anonymous, Oblivious Robots on a Grid.” ArXiv:1702.03400, 2017.","bibtex":"@article{Fischer_Jung_Meyer auf der Heide_2017, title={Gathering Anonymous, Oblivious Robots on a Grid}, journal={arXiv:1702.03400}, author={Fischer, Matthias and Jung, Daniel and Meyer auf der Heide, Friedhelm}, year={2017} }","chicago":"Fischer, Matthias, Daniel Jung, and Friedhelm Meyer auf der Heide. “Gathering Anonymous, Oblivious Robots on a Grid.” ArXiv:1702.03400, 2017.","ama":"Fischer M, Jung D, Meyer auf der Heide F. Gathering Anonymous, Oblivious Robots on a Grid. arXiv:170203400. 2017.","apa":"Fischer, M., Jung, D., & Meyer auf der Heide, F. (2017). Gathering Anonymous, Oblivious Robots on a Grid. ArXiv:1702.03400.","ieee":"M. Fischer, D. Jung, and F. Meyer auf der Heide, “Gathering Anonymous, Oblivious Robots on a Grid,” arXiv:1702.03400. 2017.","short":"M. Fischer, D. Jung, F. Meyer auf der Heide, ArXiv:1702.03400 (2017)."},"_id":"17811","date_updated":"2022-01-06T06:53:20Z"},{"series_title":"Lecture Notes in Computer Science","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:03:47Z","doi":"10.1007/978-3-319-89441-6","department":[{"_id":"63"}],"project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Subprojekt C4","_id":"16"},{"_id":"4","name":"SFB 901 - Project Area C"}],"title":"Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times","citation":{"short":"A. Mäcker, M. Malatyali, F. Meyer auf der Heide, S. Riechers, in: Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA), Springer, 2017, pp. 207–222.","ieee":"A. Mäcker, M. Malatyali, F. Meyer auf der Heide, and S. Riechers, “Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times,” in Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA), 2017, vol. 10787, pp. 207–222.","chicago":"Mäcker, Alexander, Manuel Malatyali, Friedhelm Meyer auf der Heide, and Sören Riechers. “Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times.” In Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA), 10787:207–22. Lecture Notes in Computer Science. Springer, 2017. https://doi.org/10.1007/978-3-319-89441-6.","ama":"Mäcker A, Malatyali M, Meyer auf der Heide F, Riechers S. Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times. In: Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA). Vol 10787. Lecture Notes in Computer Science. Springer; 2017:207-222. doi:10.1007/978-3-319-89441-6","apa":"Mäcker, A., Malatyali, M., Meyer auf der Heide, F., & Riechers, S. (2017). Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times. In Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA) (Vol. 10787, pp. 207–222). Springer. https://doi.org/10.1007/978-3-319-89441-6","bibtex":"@inproceedings{Mäcker_Malatyali_Meyer auf der Heide_Riechers_2017, series={Lecture Notes in Computer Science}, title={Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times}, volume={10787}, DOI={10.1007/978-3-319-89441-6}, booktitle={Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA)}, publisher={Springer}, author={Mäcker, Alexander and Malatyali, Manuel and Meyer auf der Heide, Friedhelm and Riechers, Sören}, year={2017}, pages={207–222}, collection={Lecture Notes in Computer Science} }","mla":"Mäcker, Alexander, et al. “Non-Clairvoyant Scheduling to Minimize Max Flow Time on a Machine with Setup Times.” Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA), vol. 10787, Springer, 2017, pp. 207–22, doi:10.1007/978-3-319-89441-6."},"year":"2017","type":"conference","page":"207-222","_id":"79","intvolume":" 10787","file":[{"success":1,"relation":"main_file","content_type":"application/pdf","date_updated":"2018-11-02T14:59:22Z","creator":"ups","file_id":"5289","file_size":380629,"access_level":"closed","file_name":"Non-clairvoyantSchedulingToMin.pdf","date_created":"2018-11-02T14:59:22Z"}],"author":[{"first_name":"Alexander","full_name":"Mäcker, Alexander","last_name":"Mäcker","id":"13536"},{"first_name":"Manuel","full_name":"Malatyali, Manuel","last_name":"Malatyali"},{"last_name":"Meyer auf der Heide","id":"15523","first_name":"Friedhelm","full_name":"Meyer auf der Heide, Friedhelm"},{"last_name":"Riechers","first_name":"Sören","full_name":"Riechers, Sören"}],"publisher":"Springer","file_date_updated":"2018-11-02T14:59:22Z","publication":"Proceedings of the 15th Workshop on Approximation and Online Algorithms (WAOA)","has_accepted_license":"1","status":"public","date_created":"2017-10-17T12:41:06Z","volume":10787,"abstract":[{"text":"Consider a problem in which $n$ jobs that are classified into $k$ types arrive over time at their release times and are to be scheduled on a single machine so as to minimize the maximum flow time.The machine requires a setup taking $s$ time units whenever it switches from processing jobs of one type to jobs of a different type.We consider the problem as an online problem where each job is only known to the scheduler as soon as it arrives and where the processing time of a job only becomes known upon its completion (non-clairvoyance).We are interested in the potential of simple ``greedy-like'' algorithms.We analyze a modification of the FIFO strategy and show its competitiveness to be $\\Theta(\\sqrt{n})$, which is optimal for the considered class of algorithms.For $k=2$ types it achieves a constant competitiveness.Our main insight is obtained by an analysis of the smoothed competitiveness.If processing times $p_j$ are independently perturbed to $\\hat p_j = (1+X_j)p_j$, we obtain a competitiveness of $O(\\sigma^{-2} \\log^2 n)$ when $X_j$ is drawn from a uniform or a (truncated) normal distribution with standard deviation $\\sigma$.The result proves that bad instances are fragile and ``practically'' one might expect a much better performance than given by the $\\Omega(\\sqrt{n})$-bound.","lang":"eng"}],"user_id":"477","ddc":["000"]},{"series_title":"LNCS","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:03:52Z","doi":"10.1007/978-3-319-59605-1_13","department":[{"_id":"63"}],"project":[{"name":"SFB 901","_id":"1"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"title":"Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity","year":"2017","citation":{"apa":"Abu-Khzam, F. N., Li, S., Markarian, C., Meyer auf der Heide, F., & Podlipyan, P. (2017). Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity. In Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW) (pp. 139–150). https://doi.org/10.1007/978-3-319-59605-1_13","ama":"Abu-Khzam FN, Li S, Markarian C, Meyer auf der Heide F, Podlipyan P. Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity. In: Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW). LNCS. ; 2017:139-150. doi:10.1007/978-3-319-59605-1_13","chicago":"Abu-Khzam, Faisal N., Shouwei Li, Christine Markarian, Friedhelm Meyer auf der Heide, and Pavel Podlipyan. “Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity.” In Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW), 139–50. LNCS, 2017. https://doi.org/10.1007/978-3-319-59605-1_13.","bibtex":"@inproceedings{Abu-Khzam_Li_Markarian_Meyer auf der Heide_Podlipyan_2017, series={LNCS}, title={Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity}, DOI={10.1007/978-3-319-59605-1_13}, booktitle={Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW)}, author={Abu-Khzam, Faisal N. and Li, Shouwei and Markarian, Christine and Meyer auf der Heide, Friedhelm and Podlipyan, Pavel}, year={2017}, pages={139–150}, collection={LNCS} }","mla":"Abu-Khzam, Faisal N., et al. “Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity.” Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW), 2017, pp. 139–50, doi:10.1007/978-3-319-59605-1_13.","short":"F.N. Abu-Khzam, S. Li, C. Markarian, F. Meyer auf der Heide, P. Podlipyan, in: Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW), 2017, pp. 139–150.","ieee":"F. N. Abu-Khzam, S. Li, C. Markarian, F. Meyer auf der Heide, and P. Podlipyan, “Modular-Width: An Auxiliary Parameter for Parameterized Parallel Complexity,” in Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW), 2017, pp. 139–150."},"type":"conference","page":"139-150","_id":"82","author":[{"last_name":"Abu-Khzam","first_name":"Faisal N.","full_name":"Abu-Khzam, Faisal N."},{"last_name":"Li","first_name":"Shouwei","full_name":"Li, Shouwei"},{"first_name":"Christine","full_name":"Markarian, Christine","last_name":"Markarian","id":"37612"},{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"},{"last_name":"Podlipyan","full_name":"Podlipyan, Pavel","first_name":"Pavel"}],"publication":"Proceedings of the 11th International Workshop on Frontiers in Algorithmics (FAW)","file_date_updated":"2018-11-02T15:07:35Z","file":[{"content_type":"application/pdf","date_updated":"2018-11-02T15:07:35Z","relation":"main_file","success":1,"file_size":238276,"creator":"ups","file_id":"5294","access_level":"closed","file_name":"Modular-WidthAnAuxiliaryParame.pdf","date_created":"2018-11-02T15:07:35Z"}],"status":"public","has_accepted_license":"1","date_created":"2017-10-17T12:41:07Z","abstract":[{"lang":"eng","text":"Many graph problems such as maximum cut, chromatic number, hamiltonian cycle, and edge dominating set are known to be fixed-parameter tractable (FPT) when parameterized by the treewidth of the input graphs, but become W-hard with respect to the clique-width parameter. Recently, Gajarský et al. proposed a new parameter called modular-width using the notion of modular decomposition of graphs. They showed that the chromatic number problem and the partitioning into paths problem, and hence hamiltonian path and hamiltonian cycle, are FPT when parameterized by this parameter. In this paper, we study modular-width in parameterized parallel complexity and show that the weighted maximum clique problem and the maximum matching problem are fixed-parameter parallel-tractable (FPPT) when parameterized by this parameter."}],"ddc":["000"],"user_id":"477"},{"doi":"10.1145/3087556.3087578","date_updated":"2022-01-06T07:02:46Z","language":[{"iso":"eng"}],"title":"Sharing is Caring: Multiprocessor Scheduling with a Sharable Resource","project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Subprojekt A3","_id":"7"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"},{"name":"SFB 901 - Project Area A","_id":"2"}],"department":[{"_id":"63"},{"_id":"541"}],"_id":"59","citation":{"short":"P. Kling, A. Mäcker, S. Riechers, A. Skopalik, in: Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 2017, pp. 123--132.","ieee":"P. Kling, A. Mäcker, S. Riechers, and A. Skopalik, “Sharing is Caring: Multiprocessor Scheduling with a Sharable Resource,” in Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 2017, pp. 123--132.","apa":"Kling, P., Mäcker, A., Riechers, S., & Skopalik, A. (2017). Sharing is Caring: Multiprocessor Scheduling with a Sharable Resource. In Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA) (pp. 123--132). https://doi.org/10.1145/3087556.3087578","ama":"Kling P, Mäcker A, Riechers S, Skopalik A. Sharing is Caring: Multiprocessor Scheduling with a Sharable Resource. In: Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA). ; 2017:123--132. doi:10.1145/3087556.3087578","chicago":"Kling, Peter, Alexander Mäcker, Sören Riechers, and Alexander Skopalik. “Sharing Is Caring: Multiprocessor Scheduling with a Sharable Resource.” In Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 123--132, 2017. https://doi.org/10.1145/3087556.3087578.","bibtex":"@inproceedings{Kling_Mäcker_Riechers_Skopalik_2017, title={Sharing is Caring: Multiprocessor Scheduling with a Sharable Resource}, DOI={10.1145/3087556.3087578}, booktitle={Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)}, author={Kling, Peter and Mäcker, Alexander and Riechers, Sören and Skopalik, Alexander}, year={2017}, pages={123--132} }","mla":"Kling, Peter, et al. “Sharing Is Caring: Multiprocessor Scheduling with a Sharable Resource.” Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 2017, pp. 123--132, doi:10.1145/3087556.3087578."},"type":"conference","year":"2017","page":"123--132","user_id":"477","ddc":["040"],"abstract":[{"text":"We consider a scheduling problem on $m$ identical processors sharing an arbitrarily divisible resource. In addition to assigning jobs to processors, the scheduler must distribute the resource among the processors (e.g., for three processors in shares of 20\\%, 15\\%, and 65\\%) and adjust this distribution over time. Each job $j$ comes with a size $p_j \\in \\mathbb{R}$ and a resource requirement $r_j > 0$. Jobs do not benefit when receiving a share larger than $r_j$ of the resource. But providing them with a fraction of the resource requirement causes a linear decrease in the processing efficiency. We seek a (non-preemptive) job and resource assignment minimizing the makespan.Our main result is an efficient approximation algorithm which achieves an approximation ratio of $2 + 1/(m-2)$. It can be improved to an (asymptotic) ratio of $1 + 1/(m-1)$ if all jobs have unit size. Our algorithms also imply new results for a well-known bin packing problem with splittable items and a restricted number of allowed item parts per bin.Based upon the above solution, we also derive an approximation algorithm with similar guarantees for a setting in which we introduce so-called tasks each containing several jobs and where we are interested in the average completion time of tasks (a task is completed when all its jobs are completed).","lang":"eng"}],"status":"public","has_accepted_license":"1","date_created":"2017-10-17T12:41:02Z","file":[{"file_name":"59-progress.pdf","date_created":"2018-03-21T13:17:33Z","access_level":"closed","file_size":784867,"creator":"florida","file_id":"1578","date_updated":"2018-03-21T13:17:33Z","content_type":"application/pdf","relation":"main_file","success":1}],"author":[{"first_name":"Peter","full_name":"Kling, Peter","last_name":"Kling"},{"last_name":"Mäcker","id":"13536","first_name":"Alexander","full_name":"Mäcker, Alexander"},{"last_name":"Riechers","full_name":"Riechers, Sören","first_name":"Sören"},{"last_name":"Skopalik","id":"40384","first_name":"Alexander","full_name":"Skopalik, Alexander"}],"file_date_updated":"2018-03-21T13:17:33Z","publication":"Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)"},{"ddc":["000"],"title":"Price Fluctuations in Online Leasing","user_id":"477","project":[{"_id":"1","name":"SFB 901"},{"name":"SFB 901 - Subprojekt A1","_id":"5"},{"name":"SFB 901 - Project Area A","_id":"2"}],"date_created":"2017-10-17T12:41:05Z","has_accepted_license":"1","status":"public","department":[{"_id":"63"}],"file_date_updated":"2018-11-02T15:06:13Z","publication":"Proceedings of the 11th Annual International Conference on Combinatorial Optimization and Applications (COCOA)","author":[{"first_name":"Björn","full_name":"Feldkord, Björn","last_name":"Feldkord","id":"22704"},{"id":"37612","last_name":"Markarian","full_name":"Markarian, Christine","first_name":"Christine"},{"id":"15523","last_name":"Meyer auf der Heide","full_name":"Meyer auf der Heide, Friedhelm","first_name":"Friedhelm"}],"file":[{"file_name":"PriceFluctuationInOnlineLeasin.pdf","date_created":"2018-11-02T15:06:13Z","access_level":"closed","file_size":287315,"creator":"ups","file_id":"5293","date_updated":"2018-11-02T15:06:13Z","content_type":"application/pdf","relation":"main_file","success":1}],"doi":"10.1007/978-3-319-71147-8_2","date_updated":"2022-01-06T07:03:26Z","_id":"70","page":"17 - 31","type":"conference","year":"2017","citation":{"bibtex":"@inproceedings{Feldkord_Markarian_Meyer auf der Heide_2017, title={Price Fluctuations in Online Leasing}, DOI={10.1007/978-3-319-71147-8_2}, booktitle={Proceedings of the 11th Annual International Conference on Combinatorial Optimization and Applications (COCOA)}, author={Feldkord, Björn and Markarian, Christine and Meyer auf der Heide, Friedhelm}, year={2017}, pages={17–31} }","mla":"Feldkord, Björn, et al. “Price Fluctuations in Online Leasing.” Proceedings of the 11th Annual International Conference on Combinatorial Optimization and Applications (COCOA), 2017, pp. 17–31, doi:10.1007/978-3-319-71147-8_2.","apa":"Feldkord, B., Markarian, C., & Meyer auf der Heide, F. 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Meyer auf der Heide, “Price Fluctuations in Online Leasing,” in Proceedings of the 11th Annual International Conference on Combinatorial Optimization and Applications (COCOA), 2017, pp. 17–31.","short":"B. Feldkord, C. Markarian, F. Meyer auf der Heide, in: Proceedings of the 11th Annual International Conference on Combinatorial Optimization and Applications (COCOA), 2017, pp. 17–31."},"language":[{"iso":"eng"}]},{"type":"dissertation","year":"2017","citation":{"mla":"Podlipyan, Pavel. Local Algorithms for the Continuous Gathering Problem. Universität Paderborn, 2017, doi:10.17619/UNIPB/1-230.","bibtex":"@book{Podlipyan_2017, title={Local Algorithms for the Continuous Gathering Problem}, DOI={10.17619/UNIPB/1-230}, publisher={Universität Paderborn}, author={Podlipyan, Pavel}, year={2017} }","chicago":"Podlipyan, Pavel. Local Algorithms for the Continuous Gathering Problem. Universität Paderborn, 2017. https://doi.org/10.17619/UNIPB/1-230.","apa":"Podlipyan, P. (2017). 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