--- _id: '26888' author: - first_name: Thorsten full_name: Götte, Thorsten id: '34727' last_name: Götte - first_name: Christina full_name: Kolb, Christina id: '43647' last_name: Kolb - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Julian full_name: Werthmann, Julian id: '50024' last_name: Werthmann citation: ama: 'Götte T, Kolb C, Scheideler C, Werthmann J. Beep-And-Sleep: Message and Energy Efficient Set Cover. In: Algorithms for Sensor Systems (ALGOSENSORS ’21). ; 2021. doi:10.1007/978-3-030-89240-1_7' apa: 'Götte, T., Kolb, C., Scheideler, C., & Werthmann, J. (2021). Beep-And-Sleep: Message and Energy Efficient Set Cover. In Algorithms for Sensor Systems (ALGOSENSORS ’21). ALGOSENSORS 2021, Lisbon, Portgual. https://doi.org/10.1007/978-3-030-89240-1_7' bibtex: '@inbook{Götte_Kolb_Scheideler_Werthmann_2021, place={Cham}, title={Beep-And-Sleep: Message and Energy Efficient Set Cover}, DOI={10.1007/978-3-030-89240-1_7}, booktitle={Algorithms for Sensor Systems (ALGOSENSORS ’21)}, author={Götte, Thorsten and Kolb, Christina and Scheideler, Christian and Werthmann, Julian}, year={2021} }' chicago: 'Götte, Thorsten, Christina Kolb, Christian Scheideler, and Julian Werthmann. “Beep-And-Sleep: Message and Energy Efficient Set Cover.” In Algorithms for Sensor Systems (ALGOSENSORS ’21). Cham, 2021. https://doi.org/10.1007/978-3-030-89240-1_7.' ieee: 'T. Götte, C. Kolb, C. Scheideler, and J. Werthmann, “Beep-And-Sleep: Message and Energy Efficient Set Cover,” in Algorithms for Sensor Systems (ALGOSENSORS ’21), Cham, 2021.' mla: 'Götte, Thorsten, et al. “Beep-And-Sleep: Message and Energy Efficient Set Cover.” Algorithms for Sensor Systems (ALGOSENSORS ’21), 2021, doi:10.1007/978-3-030-89240-1_7.' short: 'T. Götte, C. Kolb, C. Scheideler, J. Werthmann, in: Algorithms for Sensor Systems (ALGOSENSORS ’21), Cham, 2021.' conference: location: Lisbon, Portgual name: ALGOSENSORS 2021 date_created: 2021-10-26T12:06:04Z date_updated: 2022-11-18T10:01:36Z doi: 10.1007/978-3-030-89240-1_7 language: - iso: eng place: Cham project: - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 - _id: '1' name: 'SFB 901: SFB 901' publication: Algorithms for Sensor Systems (ALGOSENSORS '21) publication_identifier: issn: - 0302-9743 - 1611-3349 publication_status: published status: public title: 'Beep-And-Sleep: Message and Energy Efficient Set Cover' type: book_chapter user_id: '477' year: '2021' ... --- _id: '27051' author: - first_name: John full_name: Augustine, John last_name: Augustine - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Fabian full_name: Kuhn, Fabian last_name: Kuhn - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Philipp full_name: Schneider, Philipp last_name: Schneider citation: ama: 'Augustine J, Hinnenthal K, Kuhn F, Scheideler C, Schneider P. Shortest Paths in a Hybrid Network Model. In: Chawla S, ed. Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020. SIAM; 2020:1280-1299. doi:10.1137/1.9781611975994.78' apa: Augustine, J., Hinnenthal, K., Kuhn, F., Scheideler, C., & Schneider, P. (2020). Shortest Paths in a Hybrid Network Model. In S. Chawla (Ed.), Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020 (pp. 1280–1299). SIAM. https://doi.org/10.1137/1.9781611975994.78 bibtex: '@inproceedings{Augustine_Hinnenthal_Kuhn_Scheideler_Schneider_2020, title={Shortest Paths in a Hybrid Network Model}, DOI={10.1137/1.9781611975994.78}, booktitle={Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020}, publisher={SIAM}, author={Augustine, John and Hinnenthal, Kristian and Kuhn, Fabian and Scheideler, Christian and Schneider, Philipp}, editor={Chawla, Shuchi}, year={2020}, pages={1280–1299} }' chicago: Augustine, John, Kristian Hinnenthal, Fabian Kuhn, Christian Scheideler, and Philipp Schneider. “Shortest Paths in a Hybrid Network Model.” In Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020, edited by Shuchi Chawla, 1280–99. SIAM, 2020. https://doi.org/10.1137/1.9781611975994.78. ieee: 'J. Augustine, K. Hinnenthal, F. Kuhn, C. Scheideler, and P. Schneider, “Shortest Paths in a Hybrid Network Model,” in Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020, 2020, pp. 1280–1299, doi: 10.1137/1.9781611975994.78.' mla: Augustine, John, et al. “Shortest Paths in a Hybrid Network Model.” Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020, edited by Shuchi Chawla, SIAM, 2020, pp. 1280–99, doi:10.1137/1.9781611975994.78. short: 'J. Augustine, K. Hinnenthal, F. Kuhn, C. Scheideler, P. Schneider, in: S. Chawla (Ed.), Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020, SIAM, 2020, pp. 1280–1299.' date_created: 2021-11-02T10:01:42Z date_updated: 2022-01-06T06:57:33Z doi: 10.1137/1.9781611975994.78 editor: - first_name: Shuchi full_name: Chawla, Shuchi last_name: Chawla language: - iso: eng page: 1280-1299 publication: Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020 publisher: SIAM status: public title: Shortest Paths in a Hybrid Network Model type: conference user_id: '15504' year: '2020' ... --- _id: '17808' author: - first_name: Robert full_name: Gmyr, Robert last_name: Gmyr - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Irina full_name: Kostitsyna, Irina last_name: Kostitsyna - first_name: Fabian full_name: Kuhn, Fabian last_name: Kuhn - first_name: Dorian full_name: Rudolph, Dorian last_name: Rudolph - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Thim full_name: Strothmann, Thim last_name: Strothmann citation: ama: Gmyr R, Hinnenthal K, Kostitsyna I, et al. Forming tile shapes with simple robots. Nat Comput. 2020;19(2):375-390. doi:10.1007/s11047-019-09774-2 apa: Gmyr, R., Hinnenthal, K., Kostitsyna, I., Kuhn, F., Rudolph, D., Scheideler, C., & Strothmann, T. (2020). Forming tile shapes with simple robots. Nat. Comput., 19(2), 375–390. https://doi.org/10.1007/s11047-019-09774-2 bibtex: '@article{Gmyr_Hinnenthal_Kostitsyna_Kuhn_Rudolph_Scheideler_Strothmann_2020, title={Forming tile shapes with simple robots}, volume={19}, DOI={10.1007/s11047-019-09774-2}, number={2}, journal={Nat. Comput.}, author={Gmyr, Robert and Hinnenthal, Kristian and Kostitsyna, Irina and Kuhn, Fabian and Rudolph, Dorian and Scheideler, Christian and Strothmann, Thim}, year={2020}, pages={375–390} }' chicago: 'Gmyr, Robert, Kristian Hinnenthal, Irina Kostitsyna, Fabian Kuhn, Dorian Rudolph, Christian Scheideler, and Thim Strothmann. “Forming Tile Shapes with Simple Robots.” Nat. Comput. 19, no. 2 (2020): 375–90. https://doi.org/10.1007/s11047-019-09774-2.' ieee: R. Gmyr et al., “Forming tile shapes with simple robots,” Nat. Comput., vol. 19, no. 2, pp. 375–390, 2020. mla: Gmyr, Robert, et al. “Forming Tile Shapes with Simple Robots.” Nat. Comput., vol. 19, no. 2, 2020, pp. 375–90, doi:10.1007/s11047-019-09774-2. short: R. Gmyr, K. Hinnenthal, I. Kostitsyna, F. Kuhn, D. Rudolph, C. Scheideler, T. Strothmann, Nat. Comput. 19 (2020) 375–390. date_created: 2020-08-11T10:57:26Z date_updated: 2022-01-06T06:53:20Z doi: 10.1007/s11047-019-09774-2 intvolume: ' 19' issue: '2' language: - iso: eng page: 375-390 publication: Nat. Comput. status: public title: Forming tile shapes with simple robots type: journal_article user_id: '15504' volume: 19 year: '2020' ... --- _id: '20755' abstract: - lang: eng text: "We consider the problem of computing shortest paths in \\emph{hybrid networks}, in which nodes can make use of different communication modes. For example, mobile phones may use ad-hoc connections via Bluetooth or Wi-Fi in addition to the cellular network to solve tasks more efficiently. Like in this case, the different communication modes may differ considerably in range, bandwidth, and flexibility. We build upon the model of Augustine et al. [SODA '20], which captures these differences by a \\emph{local} and a \\emph{global} mode. Specifically, the local edges model a fixed communication network in which $O(1)$ messages of size $O(\\log n)$ can be sent over every edge in each synchronous round. The global edges form a clique, but nodes are only allowed to send and receive a total of at most $O(\\log n)$ messages over global edges, which restricts the nodes to use these edges only very sparsely.\r\n\r\nWe demonstrate the power of hybrid networks by presenting algorithms to compute Single-Source Shortest Paths and the diameter very efficiently in \\emph{sparse graphs}. Specifically, we present exact $O(\\log n)$ time algorithms for cactus graphs (i.e., graphs in which each edge is contained in at most one cycle), and $3$-approximations for graphs that have at most $n + O(n^{1/3})$ edges and arboricity $O(\\log n)$. For these graph classes, our algorithms provide exponentially faster solutions than the best known algorithms for general graphs in this model.\r\nBeyond shortest paths, we also provide a variety of useful tools and techniques for hybrid networks, which may be of independent interest.\r\n" author: - first_name: Michael full_name: Feldmann, Michael id: '23538' last_name: Feldmann - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Feldmann M, Hinnenthal K, Scheideler C. Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs. In: Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS). Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2020. doi:10.4230/LIPIcs.OPODIS.2020.31' apa: Feldmann, M., Hinnenthal, K., & Scheideler, C. (2020). Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs. In Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS). Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.OPODIS.2020.31 bibtex: '@inproceedings{Feldmann_Hinnenthal_Scheideler_2020, title={Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs}, DOI={10.4230/LIPIcs.OPODIS.2020.31}, booktitle={Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS)}, publisher={Schloss Dagstuhl - Leibniz-Zentrum für Informatik}, author={Feldmann, Michael and Hinnenthal, Kristian and Scheideler, Christian}, year={2020} }' chicago: Feldmann, Michael, Kristian Hinnenthal, and Christian Scheideler. “Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs.” In Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS). Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020. https://doi.org/10.4230/LIPIcs.OPODIS.2020.31. ieee: M. Feldmann, K. Hinnenthal, and C. Scheideler, “Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs,” in Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS), 2020. mla: Feldmann, Michael, et al. “Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs.” Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, doi:10.4230/LIPIcs.OPODIS.2020.31. short: 'M. Feldmann, K. Hinnenthal, C. Scheideler, in: Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS), Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020.' date_created: 2020-12-16T10:20:18Z date_updated: 2022-01-06T06:54:36Z ddc: - '000' department: - _id: '79' doi: 10.4230/LIPIcs.OPODIS.2020.31 external_id: arxiv: - '2007.01191' file: - access_level: closed content_type: application/pdf creator: mfeldma2 date_created: 2020-12-16T10:18:50Z date_updated: 2020-12-16T10:18:50Z file_id: '20756' file_name: Fast_Hybrid_Network_Algorithms_for_Shortest_Paths_in_Sparse_Graphs.pdf file_size: 867373 relation: main_file success: 1 file_date_updated: 2020-12-16T10:18:50Z has_accepted_license: '1' language: - iso: eng project: - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 - _id: '1' name: SFB 901 publication: Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS) publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik status: public title: Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs type: conference user_id: '23538' year: '2020' ... --- _id: '16902' abstract: - lang: eng text: "The maintenance of efficient and robust overlay networks is one\r\nof the most fundamental and reoccurring themes in networking.\r\nThis paper presents a survey of state-of-the-art \r\nalgorithms to design and repair overlay networks in a distributed\r\nmanner. In particular, we discuss basic algorithmic primitives\r\nto preserve connectivity, review algorithms for the fundamental\r\nproblem of graph linearization, and then survey self-stabilizing\r\nalgorithms for metric and scalable topologies. \r\nWe also identify open problems and avenues for future research.\r\n" author: - first_name: Michael full_name: Feldmann, Michael id: '23538' last_name: Feldmann - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Stefan full_name: Schmid, Stefan last_name: Schmid citation: ama: Feldmann M, Scheideler C, Schmid S. Survey on Algorithms for Self-Stabilizing Overlay Networks. ACM Computing Surveys. 2020. doi:10.1145/3397190 apa: Feldmann, M., Scheideler, C., & Schmid, S. (2020). Survey on Algorithms for Self-Stabilizing Overlay Networks. ACM Computing Surveys. https://doi.org/10.1145/3397190 bibtex: '@article{Feldmann_Scheideler_Schmid_2020, title={Survey on Algorithms for Self-Stabilizing Overlay Networks}, DOI={10.1145/3397190}, journal={ACM Computing Surveys}, publisher={ACM}, author={Feldmann, Michael and Scheideler, Christian and Schmid, Stefan}, year={2020} }' chicago: Feldmann, Michael, Christian Scheideler, and Stefan Schmid. “Survey on Algorithms for Self-Stabilizing Overlay Networks.” ACM Computing Surveys, 2020. https://doi.org/10.1145/3397190. ieee: M. Feldmann, C. Scheideler, and S. Schmid, “Survey on Algorithms for Self-Stabilizing Overlay Networks,” ACM Computing Surveys, 2020. mla: Feldmann, Michael, et al. “Survey on Algorithms for Self-Stabilizing Overlay Networks.” ACM Computing Surveys, ACM, 2020, doi:10.1145/3397190. short: M. Feldmann, C. Scheideler, S. Schmid, ACM Computing Surveys (2020). date_created: 2020-04-29T07:09:50Z date_updated: 2022-01-06T06:52:58Z department: - _id: '79' doi: 10.1145/3397190 language: - iso: eng project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 publication: ACM Computing Surveys publisher: ACM status: public title: Survey on Algorithms for Self-Stabilizing Overlay Networks type: journal_article user_id: '23538' year: '2020' ... --- _id: '16903' abstract: - lang: eng text: "We consider the clock synchronization problem in the (discrete) beeping model: Given a network of $n$ nodes with each node having a clock value $\\delta(v) \\in \\{0,\\ldots T-1\\}$, the goal is to synchronize the clock values of all nodes such that they have the same value in any round.\r\nAs is standard in clock synchronization, we assume \\emph{arbitrary activations} for all nodes, i.e., the nodes start their protocol at an arbitrary round (not limited to $\\{0,\\ldots,T-1\\}$).\r\nWe give an asymptotically optimal algorithm that runs in $4D + \\Bigl\\lfloor \\frac{D}{\\lfloor T/4 \\rfloor} \\Bigr \\rfloor \\cdot (T \\mod 4) = O(D)$ rounds, where $D$ is the diameter of the network.\r\nOnce all nodes are in sync, they beep at the same round every $T$ rounds.\r\nThe algorithm drastically improves on the $O(T D)$-bound of \\cite{firefly_sync} (where $T$ is required to be at least $4n$, so the bound is no better than $O(nD)$).\r\nOur algorithm is very simple as nodes only have to maintain $3$ bits in addition to the $\\lceil \\log T \\rceil$ bits needed to maintain the clock.\r\nFurthermore we investigate the complexity of \\emph{self-stabilizing} solutions for the clock synchronization problem: We first show lower bounds of $\\Omega(\\max\\{T,n\\})$ rounds on the runtime and $\\Omega(\\log(\\max\\{T,n\\}))$ bits of memory required for any such protocol.\r\nAfterwards we present a protocol that runs in $O(\\max\\{T,n\\})$ rounds using at most $O(\\log(\\max\\{T,n\\}))$ bits at each node, which is asymptotically optimal with regards to both, runtime and memory requirements." author: - first_name: Michael full_name: Feldmann, Michael id: '23538' last_name: Feldmann - first_name: Ardalan full_name: Khazraei, Ardalan last_name: Khazraei - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Feldmann M, Khazraei A, Scheideler C. Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model. In: Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM; 2020. doi:10.1145/3350755.3400246' apa: Feldmann, M., Khazraei, A., & Scheideler, C. (2020). Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model. In Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM. https://doi.org/10.1145/3350755.3400246 bibtex: '@inproceedings{Feldmann_Khazraei_Scheideler_2020, title={Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model}, DOI={10.1145/3350755.3400246}, booktitle={Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)}, publisher={ACM}, author={Feldmann, Michael and Khazraei, Ardalan and Scheideler, Christian}, year={2020} }' chicago: Feldmann, Michael, Ardalan Khazraei, and Christian Scheideler. “Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model.” In Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM, 2020. https://doi.org/10.1145/3350755.3400246. ieee: M. Feldmann, A. Khazraei, and C. Scheideler, “Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model,” in Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 2020. mla: Feldmann, Michael, et al. “Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model.” Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM, 2020, doi:10.1145/3350755.3400246. short: 'M. Feldmann, A. Khazraei, C. Scheideler, in: Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM, 2020.' date_created: 2020-04-29T07:16:35Z date_updated: 2022-01-06T06:52:58Z department: - _id: '79' doi: 10.1145/3350755.3400246 external_id: arxiv: - '2005.07388' language: - iso: eng project: - _id: '96' name: Algorithmen für programmierbare Materie in einem physiologischen Medium publication: Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA) publisher: ACM status: public title: Time- and Space-Optimal Discrete Clock Synchronization in the Beeping Model type: conference user_id: '23538' year: '2020' ... --- _id: '15169' author: - first_name: Jannik full_name: Castenow, Jannik id: '38705' last_name: Castenow - first_name: Christina full_name: Kolb, Christina id: '43647' last_name: Kolb - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Castenow J, Kolb C, Scheideler C. A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks. In: Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN). ACM.' apa: 'Castenow, J., Kolb, C., & Scheideler, C. (n.d.). A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks. In Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN). Kolkata, Indien: ACM.' bibtex: '@inproceedings{Castenow_Kolb_Scheideler, title={A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks}, booktitle={Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN)}, publisher={ACM}, author={Castenow, Jannik and Kolb, Christina and Scheideler, Christian} }' chicago: Castenow, Jannik, Christina Kolb, and Christian Scheideler. “A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks.” In Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN). ACM, n.d. ieee: J. Castenow, C. Kolb, and C. Scheideler, “A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks,” in Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN), Kolkata, Indien. mla: Castenow, Jannik, et al. “A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks.” Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN), ACM. short: 'J. Castenow, C. Kolb, C. Scheideler, in: Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN), ACM, n.d.' conference: end_date: 07.01.2020 location: Kolkata, Indien name: '21st International Conference on Distributed Computing and Networking ' start_date: 04.01.2020 date_created: 2019-11-25T12:18:41Z date_updated: 2022-01-06T06:52:16Z department: - _id: '63' - _id: '79' language: - iso: eng project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 publication: Proceedings of the 21st International Conference on Distributed Computing and Networking (ICDCN) publication_status: accepted publisher: ACM status: public title: A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks type: conference user_id: '477' year: '2020' ... --- _id: '16346' author: - first_name: Joshua J. full_name: Daymude, Joshua J. last_name: Daymude - first_name: Robert full_name: Gmyr, Robert last_name: Gmyr - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Irina full_name: Kostitsyna, Irina last_name: Kostitsyna - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Andréa W. full_name: Richa, Andréa W. last_name: Richa citation: ama: 'Daymude JJ, Gmyr R, Hinnenthal K, Kostitsyna I, Scheideler C, Richa AW. Convex Hull Formation for Programmable Matter. In: Proceedings of the 21st International Conference on Distributed Computing and Networking. ; 2020. doi:10.1145/3369740.3372916' apa: Daymude, J. J., Gmyr, R., Hinnenthal, K., Kostitsyna, I., Scheideler, C., & Richa, A. W. (2020). Convex Hull Formation for Programmable Matter. In Proceedings of the 21st International Conference on Distributed Computing and Networking. https://doi.org/10.1145/3369740.3372916 bibtex: '@inproceedings{Daymude_Gmyr_Hinnenthal_Kostitsyna_Scheideler_Richa_2020, title={Convex Hull Formation for Programmable Matter}, DOI={10.1145/3369740.3372916}, booktitle={Proceedings of the 21st International Conference on Distributed Computing and Networking}, author={Daymude, Joshua J. and Gmyr, Robert and Hinnenthal, Kristian and Kostitsyna, Irina and Scheideler, Christian and Richa, Andréa W.}, year={2020} }' chicago: Daymude, Joshua J., Robert Gmyr, Kristian Hinnenthal, Irina Kostitsyna, Christian Scheideler, and Andréa W. Richa. “Convex Hull Formation for Programmable Matter.” In Proceedings of the 21st International Conference on Distributed Computing and Networking, 2020. https://doi.org/10.1145/3369740.3372916. ieee: J. J. Daymude, R. Gmyr, K. Hinnenthal, I. Kostitsyna, C. Scheideler, and A. W. Richa, “Convex Hull Formation for Programmable Matter,” in Proceedings of the 21st International Conference on Distributed Computing and Networking, 2020. mla: Daymude, Joshua J., et al. “Convex Hull Formation for Programmable Matter.” Proceedings of the 21st International Conference on Distributed Computing and Networking, 2020, doi:10.1145/3369740.3372916. short: 'J.J. Daymude, R. Gmyr, K. Hinnenthal, I. Kostitsyna, C. Scheideler, A.W. Richa, in: Proceedings of the 21st International Conference on Distributed Computing and Networking, 2020.' date_created: 2020-03-26T07:33:41Z date_updated: 2022-01-06T06:52:49Z doi: 10.1145/3369740.3372916 language: - iso: eng publication: Proceedings of the 21st International Conference on Distributed Computing and Networking publication_identifier: isbn: - '9781450377515' publication_status: published status: public title: Convex Hull Formation for Programmable Matter type: conference user_id: '32229' year: '2020' ... --- _id: '7636' abstract: - lang: eng text: "Self-stabilizing overlay networks have the advantage of being able to recover from illegal states and faults. \r\nHowever, the majority of these networks cannot give any guarantees on their functionality while the recovery process is going on. \r\nWe are especially interested in searchability, i.e., the functionality that search messages for a specific node are answered successfully if a node exists in the network. \r\nIn this paper we investigate overlay networks that ensure the maintenance of monotonic searchability while the self-stabilization is going on. \r\nMore precisely, once a search message from node u to another node v is successfully delivered, all future search messages from u to v succeed as well.\r\nWe extend the existing research by focusing on skip graphs and present a solution for two scenarios: (i) the goal topology is a super graph of the perfect skip graph and (ii) the goal topology is exactly the perfect skip graph.\r\n" author: - first_name: Linghui full_name: Luo, Linghui last_name: Luo - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Thim Frederik full_name: Strothmann, Thim Frederik id: '11319' last_name: Strothmann citation: ama: 'Luo L, Scheideler C, Strothmann TF. MultiSkipGraph: A Self-stabilizing Overlay Network that Maintains Monotonic Searchability. In: Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19). ; 2019.' apa: 'Luo, L., Scheideler, C., & Strothmann, T. F. (2019). MultiSkipGraph: A Self-stabilizing Overlay Network that Maintains Monotonic Searchability. In Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19). Rio de Janeiro, Brazil.' bibtex: '@inproceedings{Luo_Scheideler_Strothmann_2019, title={MultiSkipGraph: A Self-stabilizing Overlay Network that Maintains Monotonic Searchability}, booktitle={Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19)}, author={Luo, Linghui and Scheideler, Christian and Strothmann, Thim Frederik}, year={2019} }' chicago: 'Luo, Linghui, Christian Scheideler, and Thim Frederik Strothmann. “MultiSkipGraph: A Self-Stabilizing Overlay Network That Maintains Monotonic Searchability.” In Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19), 2019.' ieee: 'L. Luo, C. Scheideler, and T. F. Strothmann, “MultiSkipGraph: A Self-stabilizing Overlay Network that Maintains Monotonic Searchability,” in Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19), Rio de Janeiro, Brazil, 2019.' mla: 'Luo, Linghui, et al. “MultiSkipGraph: A Self-Stabilizing Overlay Network That Maintains Monotonic Searchability.” Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19), 2019.' short: 'L. Luo, C. Scheideler, T.F. Strothmann, in: Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS ’19), 2019.' conference: end_date: 2019-05-25 location: Rio de Janeiro, Brazil name: 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS '19) start_date: 2019-05-20 date_created: 2019-02-12T13:39:20Z date_updated: 2022-01-06T07:03:42Z ddc: - '006' department: - _id: '66' file: - access_level: closed content_type: application/pdf creator: thim date_created: 2019-02-12T13:37:35Z date_updated: 2019-02-12T13:37:35Z file_id: '7637' file_name: IPDPS_main.pdf file_size: 372026 relation: main_file file_date_updated: 2019-02-12T13:37:35Z has_accepted_license: '1' language: - iso: eng project: - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 - _id: '1' name: SFB 901 publication: Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS '19) status: public title: 'MultiSkipGraph: A Self-stabilizing Overlay Network that Maintains Monotonic Searchability' type: conference user_id: '477' year: '2019' ... --- _id: '8534' abstract: - lang: eng text: "We propose two protocols for distributed priority queues (denoted by 'heap' for simplicity in this paper) called SKEAP and SEAP. SKEAP realizes a distributed heap for a constant amount of priorities and SEAP one for an arbitrary amount. Both protocols build on an overlay, which induces an aggregation tree on which heap operations are aggregated in batches, ensuring that our protocols scale even for a high rate of incoming requests. As part of SEAP we provide a novel distributed protocol for the k-selection problem that runs in time O(log n) w.h.p. SKEAP guarantees sequential consistency for its heap operations, while SEAP guarantees serializability. SKEAP and SEAP provide logarithmic runtimes w.h.p. on all their operations. \r\nSKEAP and SEAP provide logarithmic runtimes w.h.p. on all their operations with SEAP having to use only O(log n) bit messages." author: - first_name: Michael full_name: Feldmann, Michael id: '23538' last_name: Feldmann - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Feldmann M, Scheideler C. Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities. In: Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA). ACM; 2019:287--296. doi:10.1145/3323165.3323193' apa: 'Feldmann, M., & Scheideler, C. (2019). Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities. In Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA) (pp. 287--296). ACM. https://doi.org/10.1145/3323165.3323193' bibtex: '@inproceedings{Feldmann_Scheideler_2019, title={Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities}, DOI={10.1145/3323165.3323193}, booktitle={Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)}, publisher={ACM}, author={Feldmann, Michael and Scheideler, Christian}, year={2019}, pages={287--296} }' chicago: 'Feldmann, Michael, and Christian Scheideler. “Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities.” In Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 287--296. ACM, 2019. https://doi.org/10.1145/3323165.3323193.' ieee: 'M. Feldmann and C. Scheideler, “Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities,” in Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), 2019, pp. 287--296.' mla: 'Feldmann, Michael, and Christian Scheideler. “Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities.” Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM, 2019, pp. 287--296, doi:10.1145/3323165.3323193.' short: 'M. Feldmann, C. Scheideler, in: Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA), ACM, 2019, pp. 287--296.' date_created: 2019-03-21T14:37:26Z date_updated: 2022-01-06T07:03:56Z ddc: - '004' department: - _id: '79' doi: 10.1145/3323165.3323193 external_id: arxiv: - '1805.03472' file: - access_level: closed content_type: application/pdf creator: ups date_created: 2019-08-26T09:14:32Z date_updated: 2019-08-26T09:14:32Z file_id: '12954' file_name: p287-feldmann.pdf file_size: 1295095 relation: main_file success: 1 file_date_updated: 2019-08-26T09:14:32Z has_accepted_license: '1' language: - iso: eng page: 287--296 project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 publication: Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (SPAA) publisher: ACM status: public title: 'Skeap & Seap: Scalable Distributed Priority Queues for Constant and Arbitrary Priorities' type: conference user_id: '477' year: '2019' ... --- _id: '8871' author: - first_name: John full_name: Augustine, John last_name: Augustine - first_name: Mohsen full_name: Ghaffari, Mohsen last_name: Ghaffari - first_name: Robert full_name: Gmyr, Robert last_name: Gmyr - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Fabian full_name: Kuhn, Fabian last_name: Kuhn - first_name: Jason full_name: Li, Jason last_name: Li - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Augustine J, Ghaffari M, Gmyr R, et al. Distributed Computation in Node-Capacitated Networks. In: Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures. ACM; 2019:69--79. doi:10.1145/3323165.3323195' apa: Augustine, J., Ghaffari, M., Gmyr, R., Hinnenthal, K., Kuhn, F., Li, J., & Scheideler, C. (2019). Distributed Computation in Node-Capacitated Networks. In Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures (pp. 69--79). ACM. https://doi.org/10.1145/3323165.3323195 bibtex: '@inproceedings{Augustine_Ghaffari_Gmyr_Hinnenthal_Kuhn_Li_Scheideler_2019, title={Distributed Computation in Node-Capacitated Networks}, DOI={10.1145/3323165.3323195}, booktitle={Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures}, publisher={ACM}, author={Augustine, John and Ghaffari, Mohsen and Gmyr, Robert and Hinnenthal, Kristian and Kuhn, Fabian and Li, Jason and Scheideler, Christian}, year={2019}, pages={69--79} }' chicago: Augustine, John, Mohsen Ghaffari, Robert Gmyr, Kristian Hinnenthal, Fabian Kuhn, Jason Li, and Christian Scheideler. “Distributed Computation in Node-Capacitated Networks.” In Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures, 69--79. ACM, 2019. https://doi.org/10.1145/3323165.3323195. ieee: J. Augustine et al., “Distributed Computation in Node-Capacitated Networks,” in Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures, 2019, pp. 69--79. mla: Augustine, John, et al. “Distributed Computation in Node-Capacitated Networks.” Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures, ACM, 2019, pp. 69--79, doi:10.1145/3323165.3323195. short: 'J. Augustine, M. Ghaffari, R. Gmyr, K. Hinnenthal, F. Kuhn, J. Li, C. Scheideler, in: Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures, ACM, 2019, pp. 69--79.' date_created: 2019-04-10T08:20:34Z date_updated: 2022-01-06T07:04:04Z ddc: - '004' department: - _id: '79' doi: 10.1145/3323165.3323195 file: - access_level: closed content_type: application/pdf creator: ups date_created: 2019-08-26T11:17:58Z date_updated: 2019-08-26T11:17:58Z file_id: '12964' file_name: p69-augustine.pdf file_size: 1275192 relation: main_file success: 1 file_date_updated: 2019-08-26T11:17:58Z has_accepted_license: '1' language: - iso: eng page: 69--79 project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 publication: Proceedings of the 31st ACM Symposium on Parallelism in Algorithms and Architectures publisher: ACM status: public title: Distributed Computation in Node-Capacitated Networks type: conference user_id: '477' year: '2019' ... --- _id: '9599' author: - first_name: Joshua J. full_name: Daymude, Joshua J. last_name: Daymude - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Andréa W. full_name: Richa, Andréa W. last_name: Richa - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Daymude JJ, Hinnenthal K, Richa AW, Scheideler C. Computing by Programmable Particles. In: Distributed Computing by Mobile Entities, Current Research in Moving and Computing. Springer, Cham; 2019:615-681. doi:https://doi.org/10.1007/978-3-030-11072-7_22' apa: Daymude, J. J., Hinnenthal, K., Richa, A. W., & Scheideler, C. (2019). Computing by Programmable Particles. In Distributed Computing by Mobile Entities, Current Research in Moving and Computing. (pp. 615–681). Springer, Cham. https://doi.org/10.1007/978-3-030-11072-7_22 bibtex: '@inbook{Daymude_Hinnenthal_Richa_Scheideler_2019, title={Computing by Programmable Particles}, DOI={https://doi.org/10.1007/978-3-030-11072-7_22}, booktitle={Distributed Computing by Mobile Entities, Current Research in Moving and Computing.}, publisher={Springer, Cham}, author={Daymude, Joshua J. and Hinnenthal, Kristian and Richa, Andréa W. and Scheideler, Christian}, year={2019}, pages={615–681} }' chicago: Daymude, Joshua J., Kristian Hinnenthal, Andréa W. Richa, and Christian Scheideler. “Computing by Programmable Particles.” In Distributed Computing by Mobile Entities, Current Research in Moving and Computing., 615–81. Springer, Cham, 2019. https://doi.org/10.1007/978-3-030-11072-7_22. ieee: J. J. Daymude, K. Hinnenthal, A. W. Richa, and C. Scheideler, “Computing by Programmable Particles,” in Distributed Computing by Mobile Entities, Current Research in Moving and Computing., Springer, Cham, 2019, pp. 615–681. mla: Daymude, Joshua J., et al. “Computing by Programmable Particles.” Distributed Computing by Mobile Entities, Current Research in Moving and Computing., Springer, Cham, 2019, pp. 615–81, doi:https://doi.org/10.1007/978-3-030-11072-7_22. short: 'J.J. Daymude, K. Hinnenthal, A.W. Richa, C. Scheideler, in: Distributed Computing by Mobile Entities, Current Research in Moving and Computing., Springer, Cham, 2019, pp. 615–681.' date_created: 2019-05-02T09:38:58Z date_updated: 2022-01-06T07:04:16Z doi: https://doi.org/10.1007/978-3-030-11072-7_22 language: - iso: eng page: 615-681 publication: Distributed Computing by Mobile Entities, Current Research in Moving and Computing. publisher: Springer, Cham status: public title: Computing by Programmable Particles type: book_chapter user_id: '32229' year: '2019' ... --- _id: '6976' abstract: - lang: eng text: "We investigate the maintenance of overlay networks under massive churn, i.e.\r\nnodes joining and leaving the network. We assume an adversary that may churn a\r\nconstant fraction $\\alpha n$ of nodes over the course of $\\mathcal{O}(\\log n)$\r\nrounds. In particular, the adversary has an almost up-to-date information of\r\nthe network topology as it can observe an only slightly outdated topology that\r\nis at least $2$ rounds old. Other than that, we only have the provably minimal\r\nrestriction that new nodes can only join the network via nodes that have taken\r\npart in the network for at least one round.\r\n Our contributions are as follows: First, we show that it is impossible to\r\nmaintain a connected topology if adversary has up-to-date information about the\r\nnodes' connections. Further, we show that our restriction concerning the join\r\nis also necessary. As our main result present an algorithm that constructs a\r\nnew overlay- completely independent of all previous overlays - every $2$\r\nrounds. Furthermore, each node sends and receives only $\\mathcal{O}(\\log^3 n)$\r\nmessages each round. As part of our solution we propose the Linearized DeBruijn\r\nSwarm (LDS), a highly churn resistant overlay, which will be maintained by the\r\nalgorithm. However, our approaches can be transferred to a variety of classical\r\nP2P Topologies where nodes are mapped into the $[0,1)$-interval." author: - first_name: Thorsten full_name: Götte, Thorsten id: '34727' last_name: Götte - first_name: Vipin Ravindran full_name: Vijayalakshmi, Vipin Ravindran last_name: Vijayalakshmi - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Götte T, Vijayalakshmi VR, Scheideler C. Always be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-date Adversary. In: Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19). IEEE.' apa: 'Götte, T., Vijayalakshmi, V. R., & Scheideler, C. (n.d.). Always be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-date Adversary. In Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19). Rio de Janeiro, Brazil: IEEE.' bibtex: '@inproceedings{Götte_Vijayalakshmi_Scheideler, title={Always be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-date Adversary}, booktitle={Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19)}, publisher={IEEE}, author={Götte, Thorsten and Vijayalakshmi, Vipin Ravindran and Scheideler, Christian} }' chicago: Götte, Thorsten, Vipin Ravindran Vijayalakshmi, and Christian Scheideler. “Always Be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-Date Adversary.” In Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19). IEEE, n.d. ieee: T. Götte, V. R. Vijayalakshmi, and C. Scheideler, “Always be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-date Adversary,” in Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19), Rio de Janeiro, Brazil. mla: Götte, Thorsten, et al. “Always Be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-Date Adversary.” Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19), IEEE. short: 'T. Götte, V.R. Vijayalakshmi, C. Scheideler, in: Proceedings of the 2019 IEEE 33rd International Parallel  and Distributed Processing Symposium (IPDPS ’19), IEEE, n.d.' conference: end_date: 24.05.19 location: Rio de Janeiro, Brazil name: 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS '19) start_date: 20.05.19 date_created: 2019-01-24T18:53:11Z date_updated: 2022-01-06T07:03:25Z ddc: - '000' department: - _id: '79' file: - access_level: closed content_type: application/pdf creator: thgoette date_created: 2019-01-26T16:09:08Z date_updated: 2019-01-26T16:09:08Z file_id: '7007' file_name: Always_be_Two_Steps_Ahead_of_Your_Enemy.pdf file_size: 638020 relation: main_file success: 1 file_date_updated: 2019-01-26T16:09:08Z has_accepted_license: '1' language: - iso: eng project: - _id: '1' name: SFB 901 - _id: '4' name: SFB 901 - Project Area C - _id: '13' name: SFB 901 - Subproject C1 publication: Proceedings of the 2019 IEEE 33rd International Parallel and Distributed Processing Symposium (IPDPS '19) publication_status: accepted publisher: IEEE status: public title: Always be Two Steps Ahead of Your Enemy - Maintaining a Routable Overlay under Massive Churn with an Almost Up-to-date Adversary type: conference user_id: '34727' year: '2019' ... --- _id: '10586' abstract: - lang: eng text: We consider the problem of transforming a given graph G_s into a desired graph G_t by applying a minimum number of primitives from a particular set of local graph transformation primitives. These primitives are local in the sense that each node can apply them based on local knowledge and by affecting only its 1-neighborhood. Although the specific set of primitives we consider makes it possible to transform any (weakly) connected graph into any other (weakly) connected graph consisting of the same nodes, they cannot disconnect the graph or introduce new nodes into the graph, making them ideal in the context of supervised overlay network transformations. We prove that computing a minimum sequence of primitive applications (even centralized) for arbitrary G_s and G_t is NP-hard, which we conjecture to hold for any set of local graph transformation primitives satisfying the aforementioned properties. On the other hand, we show that this problem admits a polynomial time algorithm with a constant approximation ratio. author: - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Alexander full_name: Setzer, Alexander id: '11108' last_name: Setzer citation: ama: 'Scheideler C, Setzer A. On the Complexity of Local Graph Transformations. In: Proceedings of the 46th International Colloquium on Automata, Languages, and Programming. Vol 132. LIPIcs. Dagstuhl Publishing; 2019:150:1--150:14. doi:10.4230/LIPICS.ICALP.2019.150' apa: 'Scheideler, C., & Setzer, A. (2019). On the Complexity of Local Graph Transformations. In Proceedings of the 46th International Colloquium on Automata, Languages, and Programming (Vol. 132, pp. 150:1--150:14). Patras, Greece: Dagstuhl Publishing. https://doi.org/10.4230/LIPICS.ICALP.2019.150' bibtex: '@inproceedings{Scheideler_Setzer_2019, series={LIPIcs}, title={On the Complexity of Local Graph Transformations}, volume={132}, DOI={10.4230/LIPICS.ICALP.2019.150}, booktitle={Proceedings of the 46th International Colloquium on Automata, Languages, and Programming}, publisher={Dagstuhl Publishing}, author={Scheideler, Christian and Setzer, Alexander}, year={2019}, pages={150:1--150:14}, collection={LIPIcs} }' chicago: Scheideler, Christian, and Alexander Setzer. “On the Complexity of Local Graph Transformations.” In Proceedings of the 46th International Colloquium on Automata, Languages, and Programming, 132:150:1--150:14. LIPIcs. Dagstuhl Publishing, 2019. https://doi.org/10.4230/LIPICS.ICALP.2019.150. ieee: C. Scheideler and A. Setzer, “On the Complexity of Local Graph Transformations,” in Proceedings of the 46th International Colloquium on Automata, Languages, and Programming, Patras, Greece, 2019, vol. 132, pp. 150:1--150:14. mla: Scheideler, Christian, and Alexander Setzer. “On the Complexity of Local Graph Transformations.” Proceedings of the 46th International Colloquium on Automata, Languages, and Programming, vol. 132, Dagstuhl Publishing, 2019, pp. 150:1--150:14, doi:10.4230/LIPICS.ICALP.2019.150. short: 'C. Scheideler, A. Setzer, in: Proceedings of the 46th International Colloquium on Automata, Languages, and Programming, Dagstuhl Publishing, 2019, pp. 150:1--150:14.' conference: end_date: 2019-07-12 location: Patras, Greece name: ICALP 2019 start_date: 2019-07-09 date_created: 2019-07-08T17:19:01Z date_updated: 2022-01-06T06:50:45Z ddc: - '004' department: - _id: '79' doi: 10.4230/LIPICS.ICALP.2019.150 file: - access_level: closed content_type: application/pdf creator: ups date_created: 2019-08-26T09:21:27Z date_updated: 2019-08-26T09:21:27Z file_id: '12955' file_name: LIPIcs-ICALP-2019-150.pdf file_size: 537649 relation: main_file success: 1 file_date_updated: 2019-08-26T09:21:27Z has_accepted_license: '1' intvolume: ' 132' keyword: - Graphs transformations - NP-hardness - approximation algorithms language: - iso: eng page: 150:1--150:14 project: - _id: '1' name: SFB 901 - _id: '5' name: SFB 901 - Subproject A1 - _id: '2' name: SFB 901 - Project Area A publication: Proceedings of the 46th International Colloquium on Automata, Languages, and Programming publication_status: published publisher: Dagstuhl Publishing series_title: LIPIcs status: public title: On the Complexity of Local Graph Transformations type: conference user_id: '477' volume: 132 year: '2019' ... --- _id: '12944' author: - first_name: Thorsten full_name: Götte, Thorsten id: '34727' last_name: Götte - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Götte T, Hinnenthal K, Scheideler C. Faster Construction of Overlay Networks. In: Structural Information and Communication Complexity. Cham; 2019. doi:10.1007/978-3-030-24922-9_18' apa: Götte, T., Hinnenthal, K., & Scheideler, C. (2019). Faster Construction of Overlay Networks. In Structural Information and Communication Complexity. Cham. https://doi.org/10.1007/978-3-030-24922-9_18 bibtex: '@inproceedings{Götte_Hinnenthal_Scheideler_2019, place={Cham}, title={Faster Construction of Overlay Networks}, DOI={10.1007/978-3-030-24922-9_18}, booktitle={Structural Information and Communication Complexity}, author={Götte, Thorsten and Hinnenthal, Kristian and Scheideler, Christian}, year={2019} }' chicago: Götte, Thorsten, Kristian Hinnenthal, and Christian Scheideler. “Faster Construction of Overlay Networks.” In Structural Information and Communication Complexity. Cham, 2019. https://doi.org/10.1007/978-3-030-24922-9_18. ieee: T. Götte, K. Hinnenthal, and C. Scheideler, “Faster Construction of Overlay Networks,” in Structural Information and Communication Complexity, 2019. mla: Götte, Thorsten, et al. “Faster Construction of Overlay Networks.” Structural Information and Communication Complexity, 2019, doi:10.1007/978-3-030-24922-9_18. short: 'T. Götte, K. Hinnenthal, C. Scheideler, in: Structural Information and Communication Complexity, Cham, 2019.' date_created: 2019-08-19T07:18:57Z date_updated: 2022-01-06T06:51:27Z doi: 10.1007/978-3-030-24922-9_18 language: - iso: eng place: Cham publication: Structural Information and Communication Complexity publication_status: published status: public title: Faster Construction of Overlay Networks type: conference user_id: '32229' year: '2019' ... --- _id: '15627' author: - first_name: John full_name: Augustine, John last_name: Augustine - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Fabian full_name: Kuhn, Fabian last_name: Kuhn - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Philipp full_name: Schneider, Philipp last_name: Schneider citation: ama: 'Augustine J, Hinnenthal K, Kuhn F, Scheideler C, Schneider P. Shortest Paths in a Hybrid Network Model. In: Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms. Philadelphia, PA; 2019:1280-1299. doi:10.1137/1.9781611975994.78' apa: Augustine, J., Hinnenthal, K., Kuhn, F., Scheideler, C., & Schneider, P. (2019). Shortest Paths in a Hybrid Network Model. In Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms (pp. 1280–1299). Philadelphia, PA. https://doi.org/10.1137/1.9781611975994.78 bibtex: '@inproceedings{Augustine_Hinnenthal_Kuhn_Scheideler_Schneider_2019, place={Philadelphia, PA}, title={Shortest Paths in a Hybrid Network Model}, DOI={10.1137/1.9781611975994.78}, booktitle={Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms}, author={Augustine, John and Hinnenthal, Kristian and Kuhn, Fabian and Scheideler, Christian and Schneider, Philipp}, year={2019}, pages={1280–1299} }' chicago: Augustine, John, Kristian Hinnenthal, Fabian Kuhn, Christian Scheideler, and Philipp Schneider. “Shortest Paths in a Hybrid Network Model.” In Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 1280–99. Philadelphia, PA, 2019. https://doi.org/10.1137/1.9781611975994.78. ieee: J. Augustine, K. Hinnenthal, F. Kuhn, C. Scheideler, and P. Schneider, “Shortest Paths in a Hybrid Network Model,” in Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 2019, pp. 1280–1299. mla: Augustine, John, et al. “Shortest Paths in a Hybrid Network Model.” Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 2019, pp. 1280–99, doi:10.1137/1.9781611975994.78. short: 'J. Augustine, K. Hinnenthal, F. Kuhn, C. Scheideler, P. Schneider, in: Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms, Philadelphia, PA, 2019, pp. 1280–1299.' date_created: 2020-01-22T09:07:36Z date_updated: 2022-01-06T06:52:30Z doi: 10.1137/1.9781611975994.78 language: - iso: eng page: 1280-1299 place: Philadelphia, PA project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 publication: Proceedings of the Fourteenth Annual ACM-SIAM Symposium on Discrete Algorithms publication_identifier: isbn: - '9781611975994' publication_status: published status: public title: Shortest Paths in a Hybrid Network Model type: conference user_id: '32229' year: '2019' ... --- _id: '14830' author: - first_name: Robert full_name: Gmyr, Robert last_name: Gmyr - first_name: Jonas full_name: Lefevre, Jonas last_name: Lefevre - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: Gmyr R, Lefevre J, Scheideler C. Self-Stabilizing Metric Graphs. Theory Comput Syst. 2019;63(2):177-199. doi:10.1007/s00224-017-9823-4 apa: Gmyr, R., Lefevre, J., & Scheideler, C. (2019). Self-Stabilizing Metric Graphs. Theory Comput. Syst., 63(2), 177–199. https://doi.org/10.1007/s00224-017-9823-4 bibtex: '@article{Gmyr_Lefevre_Scheideler_2019, title={Self-Stabilizing Metric Graphs}, volume={63}, DOI={10.1007/s00224-017-9823-4}, number={2}, journal={Theory Comput. Syst.}, author={Gmyr, Robert and Lefevre, Jonas and Scheideler, Christian}, year={2019}, pages={177–199} }' chicago: 'Gmyr, Robert, Jonas Lefevre, and Christian Scheideler. “Self-Stabilizing Metric Graphs.” Theory Comput. Syst. 63, no. 2 (2019): 177–99. https://doi.org/10.1007/s00224-017-9823-4.' ieee: R. Gmyr, J. Lefevre, and C. Scheideler, “Self-Stabilizing Metric Graphs,” Theory Comput. Syst., vol. 63, no. 2, pp. 177–199, 2019. mla: Gmyr, Robert, et al. “Self-Stabilizing Metric Graphs.” Theory Comput. Syst., vol. 63, no. 2, 2019, pp. 177–99, doi:10.1007/s00224-017-9823-4. short: R. Gmyr, J. Lefevre, C. Scheideler, Theory Comput. Syst. 63 (2019) 177–199. date_created: 2019-11-06T10:54:58Z date_updated: 2022-01-06T06:52:07Z department: - _id: '79' doi: 10.1007/s00224-017-9823-4 intvolume: ' 63' issue: '2' language: - iso: eng page: 177-199 project: - _id: '1' name: SFB 901 - _id: '4' name: SFB 901 - Project Area C - _id: '13' name: SFB 901 - Subproject C1 publication: Theory Comput. Syst. status: public title: Self-Stabilizing Metric Graphs type: journal_article user_id: '15504' volume: 63 year: '2019' ... --- _id: '14539' author: - first_name: Jannik full_name: Castenow, Jannik id: '38705' last_name: Castenow - first_name: Christina full_name: Kolb, Christina id: '43647' last_name: Kolb - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: 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 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} }' 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. 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. 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. 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.' conference: end_date: 2019-07-04 location: L'Aquila, Italy name: SIROCCO 2019 start_date: 2019-07-01 date_created: 2019-11-04T10:09:35Z date_updated: 2022-01-06T06:52:00Z department: - _id: '79' - _id: '63' doi: 10.1007/978-3-030-24922-9\_26 language: - iso: eng page: 345-348 project: - _id: '1' name: SFB 901 - _id: '5' name: SFB 901 - Subproject A1 - _id: '2' name: SFB 901 - Project Area A publication: Proceedings of the 26th International Colloquium on Structural Information and Communication Complexity (SIROCCO) status: public title: A Bounding Box Overlay for Competitive Routing in Hybrid Communication Networks type: conference user_id: '477' year: '2019' ... --- _id: '13182' abstract: - lang: eng text: "We consider congestion control in peer-to-peer distributed systems. \r\nThe problem can be reduced to the following scenario: Consider a set $V$ of $n$ peers (called \\emph{clients} in this paper) that want to send messages to a fixed common peer (called \\emph{server} in this paper).\r\nWe assume that each client $v \\in V$ sends a message with probability $p(v) \\in [0,1)$ and the server has a capacity of $\\sigma \\in \\mathbb{N}$, i.e., it can recieve at most $\\sigma$ messages per round and excess messages are dropped.\r\nThe server can modify these probabilities when clients send messages.\r\nIdeally, we wish to converge to a state with $\\sum p(v) = \\sigma$ and $p(v) = p(w)$ for all $v,w \\in V$.\t\r\n\r\nWe propose a \\emph{loosely} self-stabilizing protocol with a slightly relaxed legitimate state. \ \r\nOur protocol lets the system converge from \\emph{any} initial state to a state where $\\sum p(v) \\in \\left[\\sigma \\pm \\epsilon\\right]$ and $|p(v)-p(w)| \\in O(\\frac{1}{n})$. \r\nThis property is then maintained for $\\Omega(n^{\\mathfrak{c}})$ rounds in expectation.\r\nIn particular, the initial client probabilities and server variables are not necessarily well-defined, i.e., they may have arbitrary values.\r\n\r\nOur protocol uses only $O(W + \\log n)$ bits of memory where $W$ is length of node identifiers, making it very lightweight.\r\nFinally we state a lower bound on the convergence time an see that our protocol performs asymptotically optimal (up to some polylogarithmic factor).\r\n" author: - first_name: Michael full_name: Feldmann, Michael id: '23538' last_name: Feldmann - first_name: Thorsten full_name: Götte, Thorsten id: '34727' last_name: Götte - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler citation: ama: 'Feldmann M, Götte T, Scheideler C. A Loosely Self-stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory. In: Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS). Lecture Notes in Computer Science. Springer, Cham; 2019:149-164. doi:https://doi.org/10.1007/978-3-030-34992-9_13' apa: Feldmann, M., Götte, T., & Scheideler, C. (2019). A Loosely Self-stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory. In Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS) (pp. 149–164). Springer, Cham. https://doi.org/10.1007/978-3-030-34992-9_13 bibtex: '@inproceedings{Feldmann_Götte_Scheideler_2019, series={Lecture Notes in Computer Science}, title={A Loosely Self-stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory}, DOI={https://doi.org/10.1007/978-3-030-34992-9_13}, booktitle={Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)}, publisher={Springer, Cham}, author={Feldmann, Michael and Götte, Thorsten and Scheideler, Christian}, year={2019}, pages={149–164}, collection={Lecture Notes in Computer Science} }' chicago: Feldmann, Michael, Thorsten Götte, and Christian Scheideler. “A Loosely Self-Stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory.” In Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), 149–64. Lecture Notes in Computer Science. Springer, Cham, 2019. https://doi.org/10.1007/978-3-030-34992-9_13. ieee: M. Feldmann, T. Götte, and C. Scheideler, “A Loosely Self-stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory,” in Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), 2019, pp. 149–164. mla: Feldmann, Michael, et al. “A Loosely Self-Stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory.” Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), Springer, Cham, 2019, pp. 149–64, doi:https://doi.org/10.1007/978-3-030-34992-9_13. short: 'M. Feldmann, T. Götte, C. Scheideler, in: Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS), Springer, Cham, 2019, pp. 149–164.' date_created: 2019-09-10T12:48:33Z date_updated: 2022-01-06T06:51:30Z ddc: - '000' department: - _id: '79' doi: https://doi.org/10.1007/978-3-030-34992-9_13 external_id: arxiv: - '1909.04544' file: - access_level: closed content_type: application/pdf creator: mfeldma2 date_created: 2019-09-11T11:20:16Z date_updated: 2019-09-11T11:20:16Z file_id: '13188' file_name: main.pdf file_size: 428908 relation: main_file success: 1 file_date_updated: 2019-09-11T11:20:16Z has_accepted_license: '1' language: - iso: eng page: 149-164 project: - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 - _id: '1' name: SFB 901 publication: Proceedings of the 21st International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS) publisher: Springer, Cham series_title: Lecture Notes in Computer Science status: public title: A Loosely Self-stabilizing Protocol for Randomized Congestion Control with Logarithmic Memory type: conference user_id: '23538' year: '2019' ... --- _id: '13652' author: - first_name: Kristian full_name: Hinnenthal, Kristian id: '32229' last_name: Hinnenthal - first_name: Christian full_name: Scheideler, Christian id: '20792' last_name: Scheideler - first_name: Martijn full_name: Struijs, Martijn last_name: Struijs citation: ama: 'Hinnenthal K, Scheideler C, Struijs M. Fast Distributed Algorithms for LP-Type Problems of Low Dimension. In: 33rd International Symposium on Distributed Computing (DISC 2019). ; 2019. doi:10.4230/LIPICS.DISC.2019.23' apa: Hinnenthal, K., Scheideler, C., & Struijs, M. (2019). Fast Distributed Algorithms for LP-Type Problems of Low Dimension. In 33rd International Symposium on Distributed Computing (DISC 2019). https://doi.org/10.4230/LIPICS.DISC.2019.23 bibtex: '@inproceedings{Hinnenthal_Scheideler_Struijs_2019, title={Fast Distributed Algorithms for LP-Type Problems of Low Dimension}, DOI={10.4230/LIPICS.DISC.2019.23}, booktitle={33rd International Symposium on Distributed Computing (DISC 2019)}, author={Hinnenthal, Kristian and Scheideler, Christian and Struijs, Martijn}, year={2019} }' chicago: Hinnenthal, Kristian, Christian Scheideler, and Martijn Struijs. “Fast Distributed Algorithms for LP-Type Problems of Low Dimension.” In 33rd International Symposium on Distributed Computing (DISC 2019), 2019. https://doi.org/10.4230/LIPICS.DISC.2019.23. ieee: K. Hinnenthal, C. Scheideler, and M. Struijs, “Fast Distributed Algorithms for LP-Type Problems of Low Dimension,” in 33rd International Symposium on Distributed Computing (DISC 2019), 2019. mla: Hinnenthal, Kristian, et al. “Fast Distributed Algorithms for LP-Type Problems of Low Dimension.” 33rd International Symposium on Distributed Computing (DISC 2019), 2019, doi:10.4230/LIPICS.DISC.2019.23. short: 'K. Hinnenthal, C. Scheideler, M. Struijs, in: 33rd International Symposium on Distributed Computing (DISC 2019), 2019.' date_created: 2019-10-08T11:53:38Z date_updated: 2022-01-06T06:51:41Z department: - _id: '79' doi: 10.4230/LIPICS.DISC.2019.23 language: - iso: eng project: - _id: '1' name: SFB 901 - _id: '2' name: SFB 901 - Project Area A - _id: '5' name: SFB 901 - Subproject A1 publication: 33rd International Symposium on Distributed Computing (DISC 2019) status: public title: Fast Distributed Algorithms for LP-Type Problems of Low Dimension type: conference user_id: '32229' year: '2019' ...