--- _id: '14890' author: - first_name: Stefan full_name: Kuhlemann, Stefan id: '38910' last_name: Kuhlemann - first_name: Meinolf full_name: Sellmann, Meinolf last_name: Sellmann - first_name: Kevin full_name: Tierney, Kevin last_name: Tierney citation: ama: 'Kuhlemann S, Sellmann M, Tierney K. Exploiting Counterfactuals for Scalable Stochastic Optimization. In: Lecture Notes in Computer Science. Cham; 2019. doi:10.1007/978-3-030-30048-7_40' apa: Kuhlemann, S., Sellmann, M., & Tierney, K. (2019). Exploiting Counterfactuals for Scalable Stochastic Optimization. In Lecture Notes in Computer Science. Cham. https://doi.org/10.1007/978-3-030-30048-7_40 bibtex: '@inbook{Kuhlemann_Sellmann_Tierney_2019, place={Cham}, title={Exploiting Counterfactuals for Scalable Stochastic Optimization}, DOI={10.1007/978-3-030-30048-7_40}, booktitle={Lecture Notes in Computer Science}, author={Kuhlemann, Stefan and Sellmann, Meinolf and Tierney, Kevin}, year={2019} }' chicago: Kuhlemann, Stefan, Meinolf Sellmann, and Kevin Tierney. “Exploiting Counterfactuals for Scalable Stochastic Optimization.” In Lecture Notes in Computer Science. Cham, 2019. https://doi.org/10.1007/978-3-030-30048-7_40. ieee: S. Kuhlemann, M. Sellmann, and K. Tierney, “Exploiting Counterfactuals for Scalable Stochastic Optimization,” in Lecture Notes in Computer Science, Cham, 2019. mla: Kuhlemann, Stefan, et al. “Exploiting Counterfactuals for Scalable Stochastic Optimization.” Lecture Notes in Computer Science, 2019, doi:10.1007/978-3-030-30048-7_40. short: 'S. Kuhlemann, M. Sellmann, K. Tierney, in: Lecture Notes in Computer Science, Cham, 2019.' date_created: 2019-11-12T07:45:53Z date_updated: 2022-01-06T06:52:09Z department: - _id: '277' doi: 10.1007/978-3-030-30048-7_40 language: - iso: eng place: Cham publication: Lecture Notes in Computer Science publication_identifier: isbn: - '9783030300470' - '9783030300487' issn: - 0302-9743 - 1611-3349 publication_status: published status: public title: Exploiting Counterfactuals for Scalable Stochastic Optimization type: book_chapter user_id: '38910' year: '2019' ... --- _id: '14540' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen - first_name: Natalia full_name: Kliewer, Natalia last_name: Kliewer - first_name: Ralf full_name: Borndörfer, Ralf last_name: Borndörfer - first_name: Thorsten full_name: Koch, Thorsten last_name: Koch citation: ama: Schryen G, Kliewer N, Borndörfer R, Koch T. High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis. OR News. 2019;65:34-35. apa: Schryen, G., Kliewer, N., Borndörfer, R., & Koch, T. (2019). High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis. OR News, 65, 34–35. bibtex: '@article{Schryen_Kliewer_Borndörfer_Koch_2019, title={High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis}, volume={65}, journal={OR News}, author={Schryen, Guido and Kliewer, Natalia and Borndörfer, Ralf and Koch, Thorsten}, year={2019}, pages={34–35} }' chicago: 'Schryen, Guido, Natalia Kliewer, Ralf Borndörfer, and Thorsten Koch. “High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis.” OR News 65 (2019): 34–35.' ieee: G. Schryen, N. Kliewer, R. Borndörfer, and T. Koch, “High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis,” OR News, vol. 65, pp. 34–35, 2019. mla: Schryen, Guido, et al. “High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis.” OR News, vol. 65, 2019, pp. 34–35. short: G. Schryen, N. Kliewer, R. Borndörfer, T. Koch, OR News 65 (2019) 34–35. date_created: 2019-11-04T17:00:30Z date_updated: 2022-01-06T06:52:02Z ddc: - '000' department: - _id: '277' file: - access_level: closed content_type: application/pdf creator: hsiemes date_created: 2019-11-05T10:09:05Z date_updated: 2019-11-05T10:09:05Z file_id: '14542' file_name: 1st International Workshop on HPBC.pdf file_size: 4631697 relation: main_file success: 1 file_date_updated: 2019-11-05T10:09:05Z has_accepted_license: '1' intvolume: ' 65' language: - iso: eng page: 34-35 publication: OR News status: public title: High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis type: journal_article user_id: '61579' volume: 65 year: '2019' ... --- _id: '5675' abstract: - lang: eng text: When responding to natural disasters, professional relief units are often supported by many volunteers which are not affiliated to humanitarian organizations. The effective coordination of these volunteers is crucial to leverage their capabilities and to avoid conflicts with professional relief units. In this paper, we empirically identify key requirements that professional relief units pose on this coordination. Based on these requirements, we suggest a decision model. We computationally solve a real-world instance of the model and empirically validate the computed solution in interviews with practitioners. Our results show that the suggested model allows for solving volunteer coordination tasks of realistic size near-optimally within short time, with the determined solution being well accepted by practitioners. We also describe in this article how the suggested decision support model is integrated in the volunteer coordination system which we develop in joint cooperation with a disaster management authority and a software development company. author: - first_name: Gerhard full_name: Rauchecker, Gerhard last_name: Rauchecker - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Rauchecker G, Schryen G. Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief. In: Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management. ; 2018.' apa: Rauchecker, G., & Schryen, G. (2018). Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief. In Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management. Rochester, NY, USA. bibtex: '@inproceedings{Rauchecker_Schryen_2018, title={Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief}, booktitle={Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management}, author={Rauchecker, Gerhard and Schryen, Guido}, year={2018} }' chicago: Rauchecker, Gerhard, and Guido Schryen. “Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief.” In Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management, 2018. ieee: G. Rauchecker and G. Schryen, “Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief,” in Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management, Rochester, NY, USA, 2018. mla: Rauchecker, Gerhard, and Guido Schryen. “Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief.” Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management, 2018. short: 'G. Rauchecker, G. Schryen, in: Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management, 2018.' conference: location: Rochester, NY, USA name: 15th International Conference on Information Systems for Crisis Response and Management date_created: 2018-11-14T15:35:54Z date_updated: 2022-01-06T07:02:28Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T11:25:06Z date_updated: 2018-12-13T15:05:44Z file_id: '6020' file_name: 2018_ISCRAM_Conference_Proceedings - Publication Version.pdf file_size: 488472 relation: main_file file_date_updated: 2018-12-13T15:05:44Z has_accepted_license: '1' keyword: - Coordination of spontaneous volunteers - volunteer coordination system - decision support - scheduling optimization model - linear programming language: - iso: eng oa: '1' publication: Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management status: public title: Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief type: conference user_id: '61579' year: '2018' ... --- _id: '5681' author: - first_name: Julian full_name: Prester, Julian last_name: Prester - first_name: Gerit full_name: Wagner, Gerit last_name: Wagner - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Prester J, Wagner G, Schryen G. Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach. In: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA; 2018.' apa: 'Prester, J., Wagner, G., & Schryen, G. (2018). Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach. In Proceedings of the 2018 International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA.' bibtex: '@inproceedings{Prester_Wagner_Schryen_2018, place={San Francisco, CA, USA}, title={Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach}, booktitle={Proceedings of the 2018 International Conference on Information Systems (ICIS 2018)}, author={Prester, Julian and Wagner, Gerit and Schryen, Guido}, year={2018} }' chicago: 'Prester, Julian, Gerit Wagner, and Guido Schryen. “Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach.” In Proceedings of the 2018 International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA, 2018.' ieee: 'J. Prester, G. Wagner, and G. Schryen, “Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach,” in Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), San Francisco, CA, USA, 2018.' mla: 'Prester, Julian, et al. “Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach.” Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), 2018.' short: 'J. Prester, G. Wagner, G. Schryen, in: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), San Francisco, CA, USA, 2018.' conference: location: San Francisco, CA, USA name: Thirty Ninth International Conference on Information Systems date_created: 2018-11-14T15:41:39Z date_updated: 2022-01-06T07:02:31Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T11:25:55Z date_updated: 2018-12-13T15:05:57Z file_id: '6021' file_name: ICIS - 2018 - Classifying the Ideational Impact of IS Review Articles.pdf file_size: 336667 relation: main_file file_date_updated: 2018-12-13T15:05:57Z has_accepted_license: '1' language: - iso: eng oa: '1' place: San Francisco, CA, USA publication: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018) status: public title: 'Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach' type: conference user_id: '61579' year: '2018' ... --- _id: '6164' author: - first_name: Rolf full_name: Schillinger, Rolf last_name: Schillinger - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: Schillinger R, Schryen G. Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC. University of Regensburg; 2018. doi:10.5283/epub.36264 apa: Schillinger, R., & Schryen, G. (2018). Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC. University of Regensburg. https://doi.org/10.5283/epub.36264 bibtex: '@book{Schillinger_Schryen_2018, title={Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC}, DOI={10.5283/epub.36264}, publisher={University of Regensburg}, author={Schillinger, Rolf and Schryen, Guido}, year={2018} }' chicago: Schillinger, Rolf, and Guido Schryen. Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC. University of Regensburg, 2018. https://doi.org/10.5283/epub.36264. ieee: R. Schillinger and G. Schryen, Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC. University of Regensburg, 2018. mla: Schillinger, Rolf, and Guido Schryen. Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC. University of Regensburg, 2018, doi:10.5283/epub.36264. short: R. Schillinger, G. Schryen, Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC, University of Regensburg, 2018. date_created: 2018-12-11T13:39:45Z date_updated: 2022-01-06T07:02:54Z ddc: - '000' department: - _id: '277' doi: 10.5283/epub.36264 extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-11T13:42:43Z date_updated: 2018-12-13T15:21:02Z file_id: '6165' file_name: PUBLISHED BOOK - Security in Highly Connected IT Systems.pdf file_size: 1913774 relation: main_file file_date_updated: 2018-12-13T15:21:02Z has_accepted_license: '1' language: - iso: eng oa: '1' publication_identifier: isbn: - 978-3-88246-374-3 publisher: University of Regensburg status: public title: Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC type: book user_id: '61579' year: '2018' ... --- _id: '5586' abstract: - lang: eng text: The need to protect resources against attackers is reflected by huge information security investments of firms worldwide. In the presence of budget constraints and a diverse set of assets to protect, organizations have to decide in which IT security measures to invest, how to evaluate those investment decisions, and how to learn from past decisions to optimize future security investment actions. While the academic literature has provided valuable insights into these issues, there is a lack of empirical contributions. To address this lack, we conduct a theory-based exploratory multiple case study. Our case study reveals that (1) firms? investments in information security are largely driven by external environmental and industry-related factors, (2) firms do not implement standardized decision processes, (3) the security process is perceived to impact the business process in a disturbing way, (4) both the implementation of evaluation processes and the application of metrics are hardly existent and (5) learning activities mainly occur at an ad-hoc basis. author: - first_name: Eva full_name: Weishäupl, Eva last_name: Weishäupl - first_name: Emrah full_name: Yasasin, Emrah last_name: Yasasin - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Weishäupl E, Yasasin E, Schryen G. Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning. Computers & Security. 2018;77:807-823.' apa: 'Weishäupl, E., Yasasin, E., & Schryen, G. (2018). Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning. Computers & Security, 77, 807–823.' bibtex: '@article{Weishäupl_Yasasin_Schryen_2018, title={Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning}, volume={77}, journal={Computers & Security}, publisher={Elsevier}, author={Weishäupl, Eva and Yasasin, Emrah and Schryen, Guido}, year={2018}, pages={807–823} }' chicago: 'Weishäupl, Eva, Emrah Yasasin, and Guido Schryen. “Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning.” Computers & Security 77 (2018): 807–23.' ieee: 'E. Weishäupl, E. Yasasin, and G. Schryen, “Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning,” Computers & Security, vol. 77, pp. 807–823, 2018.' mla: 'Weishäupl, Eva, et al. “Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning.” Computers & Security, vol. 77, Elsevier, 2018, pp. 807–23.' short: E. Weishäupl, E. Yasasin, G. Schryen, Computers & Security 77 (2018) 807–823. date_created: 2018-11-14T11:24:37Z date_updated: 2022-01-06T07:02:03Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T11:26:53Z date_updated: 2018-12-13T15:06:10Z file_id: '6022' file_name: JOURNAL VERSION.pdf file_size: 809490 relation: main_file file_date_updated: 2018-12-13T15:06:10Z has_accepted_license: '1' intvolume: ' 77' keyword: - Information Security Investments - Multiple Case Study - Organizations - Single Loop Learning - Double Loop Learning language: - iso: eng oa: '1' page: 807 - 823 publication: Computers & Security publisher: Elsevier status: public title: 'Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning' type: journal_article user_id: '61579' volume: 77 year: '2018' ... --- _id: '5600' author: - first_name: Richard full_name: Schuster, Richard last_name: Schuster - first_name: Gerit full_name: Wagner, Gerit last_name: Wagner - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schuster R, Wagner G, Schryen G. Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study. In: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA; 2018.' apa: 'Schuster, R., Wagner, G., & Schryen, G. (2018). Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study. In Proceedings of the 2018 International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA.' bibtex: '@inproceedings{Schuster_Wagner_Schryen_2018, place={San Francisco, CA, USA}, title={Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study}, booktitle={Proceedings of the 2018 International Conference on Information Systems (ICIS 2018)}, author={Schuster, Richard and Wagner, Gerit and Schryen, Guido}, year={2018} }' chicago: 'Schuster, Richard, Gerit Wagner, and Guido Schryen. “Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study.” In Proceedings of the 2018 International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA, 2018.' ieee: 'R. Schuster, G. Wagner, and G. Schryen, “Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study,” in Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), San Francisco, CA, USA, 2018.' mla: 'Schuster, Richard, et al. “Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study.” Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), 2018.' short: 'R. Schuster, G. Wagner, G. Schryen, in: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), San Francisco, CA, USA, 2018.' conference: location: San Francisco, CA, USA name: Thirty Ninth International Conference on Information Systems date_created: 2018-11-14T11:51:38Z date_updated: 2022-01-06T07:02:07Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-07T11:28:03Z date_updated: 2018-12-13T15:06:21Z file_id: '6023' file_name: paper345.pdf file_size: 1080982 relation: main_file file_date_updated: 2018-12-13T15:06:21Z has_accepted_license: '1' language: - iso: eng oa: '1' place: San Francisco, CA, USA publication: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018) status: public title: 'Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study' type: conference user_id: '61579' year: '2018' ... --- _id: '14856' author: - first_name: Corinna full_name: Hallmann, Corinna last_name: Hallmann - first_name: Sascha Christian full_name: Burmeister, Sascha Christian id: '32685' last_name: Burmeister - first_name: Michaela full_name: Wissing, Michaela id: '32439' last_name: Wissing - first_name: Leena full_name: Suhl, Leena last_name: Suhl citation: ama: 'Hallmann C, Burmeister SC, Wissing M, Suhl L. Heuristics and Simulation for Water Tank Optimization. In: Communications in Computer and Information Science. Cham; 2018. doi:10.1007/978-3-319-96271-9_5' apa: Hallmann, C., Burmeister, S. C., Wissing, M., & Suhl, L. (2018). Heuristics and Simulation for Water Tank Optimization. In Communications in Computer and Information Science. Cham. https://doi.org/10.1007/978-3-319-96271-9_5 bibtex: '@inbook{Hallmann_Burmeister_Wissing_Suhl_2018, place={Cham}, title={Heuristics and Simulation for Water Tank Optimization}, DOI={10.1007/978-3-319-96271-9_5}, booktitle={Communications in Computer and Information Science}, author={Hallmann, Corinna and Burmeister, Sascha Christian and Wissing, Michaela and Suhl, Leena}, year={2018} }' chicago: Hallmann, Corinna, Sascha Christian Burmeister, Michaela Wissing, and Leena Suhl. “Heuristics and Simulation for Water Tank Optimization.” In Communications in Computer and Information Science. Cham, 2018. https://doi.org/10.1007/978-3-319-96271-9_5. ieee: C. Hallmann, S. C. Burmeister, M. Wissing, and L. Suhl, “Heuristics and Simulation for Water Tank Optimization,” in Communications in Computer and Information Science, Cham, 2018. mla: Hallmann, Corinna, et al. “Heuristics and Simulation for Water Tank Optimization.” Communications in Computer and Information Science, 2018, doi:10.1007/978-3-319-96271-9_5. short: 'C. Hallmann, S.C. Burmeister, M. Wissing, L. Suhl, in: Communications in Computer and Information Science, Cham, 2018.' date_created: 2019-11-08T08:10:10Z date_updated: 2022-01-06T06:52:08Z department: - _id: '277' doi: 10.1007/978-3-319-96271-9_5 language: - iso: eng place: Cham publication: Communications in Computer and Information Science publication_identifier: isbn: - '9783319962702' - '9783319962719' issn: - 1865-0929 - 1865-0937 publication_status: published status: public title: Heuristics and Simulation for Water Tank Optimization type: book_chapter user_id: '32439' year: '2018' ... --- _id: '14861' author: - first_name: Corinna full_name: Hallmann, Corinna last_name: Hallmann - first_name: Stefan full_name: Kuhlemann, Stefan id: '38910' last_name: Kuhlemann citation: ama: 'Hallmann C, Kuhlemann S. Model Generator for Water Distribution Systems. In: Operations Research Proceedings. Cham; 2018. doi:10.1007/978-3-319-89920-6_34' apa: Hallmann, C., & Kuhlemann, S. (2018). Model Generator for Water Distribution Systems. In Operations Research Proceedings. Cham. https://doi.org/10.1007/978-3-319-89920-6_34 bibtex: '@inbook{Hallmann_Kuhlemann_2018, place={Cham}, title={Model Generator for Water Distribution Systems}, DOI={10.1007/978-3-319-89920-6_34}, booktitle={Operations Research Proceedings}, author={Hallmann, Corinna and Kuhlemann, Stefan}, year={2018} }' chicago: Hallmann, Corinna, and Stefan Kuhlemann. “Model Generator for Water Distribution Systems.” In Operations Research Proceedings. Cham, 2018. https://doi.org/10.1007/978-3-319-89920-6_34. ieee: C. Hallmann and S. Kuhlemann, “Model Generator for Water Distribution Systems,” in Operations Research Proceedings, Cham, 2018. mla: Hallmann, Corinna, and Stefan Kuhlemann. “Model Generator for Water Distribution Systems.” Operations Research Proceedings, 2018, doi:10.1007/978-3-319-89920-6_34. short: 'C. Hallmann, S. Kuhlemann, in: Operations Research Proceedings, Cham, 2018.' date_created: 2019-11-08T08:27:37Z date_updated: 2022-01-06T06:52:08Z department: - _id: '277' doi: 10.1007/978-3-319-89920-6_34 language: - iso: eng place: Cham publication: Operations Research Proceedings publication_identifier: isbn: - '9783319899190' - '9783319899206' issn: - 0721-5924 - 2197-9294 publication_status: published status: public title: Model Generator for Water Distribution Systems type: book_chapter user_id: '38910' year: '2018' ... --- _id: '5692' abstract: - lang: eng text: We consider Max-min Share (MmS) fair allocations of indivisible chores (items with negative utilities). We show that allocation of chores and classical allocation of goods (items with positive utilities) have some fundamental connections but also differences which prevent a straightforward application of algorithms for goods in the chores setting and viceversa. We prove that an MmS allocation does not need to exist for chores and computing an MmS allocation - if it exists - is strongly NP-hard. In view of these non-existence and complexity results, we present a polynomial-time 2-approximation algorithm for MmS fairness for chores. We then introduce a new fairness concept called optimal MmS that represents the best possible allocation in terms of MmS that is guaranteed to exist. We use connections to parallel machine scheduling to give (1) a polynomial-time approximation scheme for computing an optimal MmS allocation when the number of agents is fixed and (2) an effective and efficient heuristic with an ex-post worst-case analysis. author: - first_name: Haris full_name: Aziz, Haris last_name: Aziz - first_name: Gerhard full_name: Rauchecker, Gerhard last_name: Rauchecker - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen - first_name: Toby full_name: Walsh, Toby last_name: Walsh citation: ama: 'Aziz H, Rauchecker G, Schryen G, Walsh T. Algorithms for Max-Min Share Fair Allocation of Indivisible Chores. In: Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17). Vol 31. ; 2017:1-7.' apa: Aziz, H., Rauchecker, G., Schryen, G., & Walsh, T. (2017). Algorithms for Max-Min Share Fair Allocation of Indivisible Chores. In Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17) (Vol. 31, pp. 1–7). San Francisco, CA, USA. bibtex: '@inproceedings{Aziz_Rauchecker_Schryen_Walsh_2017, title={Algorithms for Max-Min Share Fair Allocation of Indivisible Chores}, volume={31}, number={1}, booktitle={Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17)}, author={Aziz, Haris and Rauchecker, Gerhard and Schryen, Guido and Walsh, Toby}, year={2017}, pages={1–7} }' chicago: Aziz, Haris, Gerhard Rauchecker, Guido Schryen, and Toby Walsh. “Algorithms for Max-Min Share Fair Allocation of Indivisible Chores.” In Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17), 31:1–7, 2017. ieee: H. Aziz, G. Rauchecker, G. Schryen, and T. Walsh, “Algorithms for Max-Min Share Fair Allocation of Indivisible Chores,” in Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17), San Francisco, CA, USA, 2017, vol. 31, no. 1, pp. 1–7. mla: Aziz, Haris, et al. “Algorithms for Max-Min Share Fair Allocation of Indivisible Chores.” Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17), vol. 31, no. 1, 2017, pp. 1–7. short: 'H. Aziz, G. Rauchecker, G. Schryen, T. Walsh, in: Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17), 2017, pp. 1–7.' conference: location: San Francisco, CA, USA name: Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17) date_created: 2018-11-14T15:49:54Z date_updated: 2022-01-06T07:02:35Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: closed content_type: application/pdf creator: hsiemes date_created: 2018-12-07T11:30:25Z date_updated: 2021-08-13T13:55:29Z file_id: '6024' file_name: aziz_rauchecker_schryen_walsh.pdf file_size: 732005 relation: main_file - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2021-08-13T13:55:14Z date_updated: 2021-08-13T13:55:14Z file_id: '23394' file_name: 10582-Article Text-14110-1-2-20201228.pdf file_size: 738751 relation: main_file file_date_updated: 2021-08-13T13:55:29Z has_accepted_license: '1' intvolume: ' 31' issue: '1' language: - iso: eng oa: '1' page: 1-7 publication: Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17) status: public title: Algorithms for Max-Min Share Fair Allocation of Indivisible Chores type: conference user_id: '61579' volume: 31 year: '2017' ...