Martin Lackner
Dipl.-Ing. Dr. Martin Lackner
- Researcher Data Intelligence (MA)
- Department Informatik und Security
Arbeitsplatz: B - Campus-Platz 1
Studiengänge
- Data Intelligence (MA)
Departments
- Informatik und Security
Publikationen
Bredereck, R., Faliszewski, P., Furdyna, M., Kaczmarczyk, A., Kaczmarek, J., Lackner, M., Laußmann, C., Rothe, J., & Seeger, T. (2026). How to tamper with a Parliament: Strategic campaigns in apportionment elections. Journal of Computer and System Sciences, 155, 103700. https://doi.org/10.1016/j.jcss.2025.103700
Lackner, M., & Nardi, O. (2025). Avoiding Overrepresentation: Upper Quota Axioms for Committee Voting. 16th Multidisciplinary Workshop on Advances in Preference Handling (M-PREF 2025). https://events.mpref.org/MPref2025/download/0007.pdf
Lackner, M., & Maly, J. (2025). Approval-Based Shortlisting. Social Choice and Welfare, 64, 97–142. http://dx.doi.org/10.1007/s00355-023-01482-2
Brill, M., Freeman, R., Janson, S., & Lackner, M. (2024). Phragmén"s Voting Methods and Justified Representation. Mathematical Programming, 203, 47–76. https://doi.org/10.1007/s10107-023-01926-8
Igarashi, A., Lackner, M., Nardi, O., & Novaro, A. (2024). Repeated Fair Allocation of Indivisible Items. Proceedings of the 38th AAAI Conference on Artificial Intelligence (AAAI 2024), 9781–9789. https://doi.org/10.1609/aaai.v38i9.28837
Maly, J., Rey, S., Endriss, U., & Lackner, M. (2023). Fairness in Participatory Budgeting via Equality of Resources. Proceedings of the 22nd International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2023), 2031–2039. https://dl.acm.org/doi/10.5555/3545946.3598876
Lackner, M., Regner, P., & Krenn, B. (2023). abcvoting: A Python package for approval-based multi-winner voting rules. Journal of Open Source Software, 8(81), 4880. https://doi.org/10.21105/joss.04880
Lackner, M., Maly, J., & Nardi, O. (2023). Free-Riding in Multi-Issue Decisions. Proceedings of the 22nd International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2023), 2040–2048. https://dl.acm.org/doi/10.5555/3545946.3598877
Lackner, M., & Maly, J. (2023). Proportional Decisions in Perpetual Voting. Proceedings of the 37th AAAI Conference on Artificial Intelligence (AAAI 2023), 5722–5729. https://doi.org/10.1609/aaai.v37i5.25710
Lackner, M., & Skowron, P. (2023). Multi-Winner Voting with Approval Preferences. Springer International Publishing. https://doi.org/10.1007/978-3-031-09016-5
Faliszewski, P., Lackner, M., Sornat, K., & Szufa, S. (2023). An Experimental Comparison of Multiwinner Voting Rules on Approval Elections. Proceedings of the Thirty-Second International Joint Conference on Artificial Intelligence (IJCAI 2023), 2675–2683. https://doi.org/10.24963/ijcai.2023/298
Brill, M., Forster, S., Lackner, M., Maly, J., & Peters, J. (2023). Proportionality in Approval-Based Participatory Budgeting. Proceedings of the 37th AAAI Conference on Artificial Intelligence (AAAI 2023), 5524–5531. https://doi.org/10.1609/aaai.v37i5.25686
Szufa, S., Faliszewski, P., Janeczko, L., Lackner, M., Slinko, A., Sornat, K., & Talmon, N. (2022). How to Sample Approval Elections? Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence (IJCAI 2022), 496–502. https://doi.org/10.24963/ijcai.2022/71
Chen, J., Lackner, M., & Maly, J. (2022). Participatory Budgeting with Donations and Diversity Constraints. Proceedings of the 36th AAAI Conference on Artificial Intelligence (AAAI 2022), 9323–9330. https://doi.org/10.1609/aaai.v36i9.21163
Brill, M., Delemazure, T., George, A.-M., Lackner, M., & Schmidt-Kraepelin, U. (2022). Liquid Democracy with Ranked Delegations. Proceedings of the 36th AAAI Conference on Artificial Intelligence (AAAI 2022), 4884–4891. https://doi.org/10.1609/aaai.v36i5.20417
Hamm, T., Lackner, M., & Rapberger, A. (2021). Computing Kemeny Rankings From d-Euclidean Preferences. Proceedings of the 7th International Conference on Algorithmic Decision Theory (ADT 2021), 13023, 147–161. https://doi.org/10.1007/978-3-030-87756-9_10
Lackner, M., Maly, J., & Rey, S. (2021). Fairness in Long-Term Participatory Budgeting. Proceedings of the 30th International Joint Conference on Artificial Intelligence (IJCAI 2021), 299–305. https://doi.org/10.24963/ijcai.2021/42
Lackner, M., Maly, J., & Rey, S. (2021). Fairness in Long-Term Participatory Budgeting (Extended Abstract). Proceedings of the 20th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2021), 1566–1568.
Lackner, M., & Skowron, P. (2021). Consistent Approval-Based Multi-Winner Rules. Journal of Economic Theory, 192, 105173. https://doi.org/10.1016/j.jet.2020.105173
Lackner, M., & Maly, J. (2021). Approval-Based Shortlisting. Proceedings of the 20th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2021), 1566–1568.
Bredereck, R., Faliszewski, P., Furdyna, M., Kaczmarczyk, A., & Lackner, M. (2020). Strategic Campaign Management in Apportionment Elections. Proceedings of the 29th International Joint Conference on Artificial Intelligence (IJCAI 2020), 103–109. https://doi.org/10.24963/ijcai.2020/15
Harrenstein, P., Lackner, M.-L., & Lackner, M. (2020). A Mathematical Analysis of an Election System Proposed by Gottlob Frege. Erkenntnis, 87(6), 2609–2644. https://doi.org/10.1007/s10670-020-00318-0
Lackner, M., & Skowron, P. (2020). Utilitarian Welfare and Representation Guarantees of Approval-Based Multiwinner Rules. Artificial Intelligence, 288, 103366. https://doi.org/10.1016/j.artint.2020.103366
Lackner, M. (2020). Perpetual Voting: Fairness in Long-Term Decision Making. Proceedings of the 34th AAAI Conference on Artificial Intelligence (AAAI 2020), 2103–2110. https://doi.org/10.1609/aaai.v34i02.5584
Fitzsimmons, Z., & Lackner, M. (2020). Incomplete Preferences in Single-Peaked Electorates. Journal of Artificial Intelligence Research (JAIR), 67, 797–833. https://doi.org/10.1613/jair.1.11577
Haret, A., Lackner, M., Pfandler, A., & Wallner, J. P. (2020). Proportional Belief Merging. Proceedings of the 34th AAAI Conference on Artificial Intelligence (AAAI 2020), 2822–2829. https://doi.org/10.1609/aaai.v34i03.5671
Peters, D., & Lackner, M. (2020). Preferences Single-Peaked on a Circle. Journal of Artificial Intelligence Research (JAIR), 68, 463–502. https://doi.org/10.1613/jair.1.11732
Lackner, M., & Skowron, P. (2019). A Quantitative Analysis of Multi-Winner Rules. Proceedings of the 28th International Joint Conference on Artificial Intelligence (IJCAI 2019), 407–413. https://doi.org/10.24963/ijcai.2019/58
Gangl, C., Maly, J., Lackner, M., & Woltran, S. (2019). Aggregating Expert Opinions in Support of Medical Diagnostic Decision-Making. 11th International Workshop on Knowledge Representation for Health Care (KR4HC-2019). https://doi.org/http://hdl.handle.net/20.500.12708/57907
Bloembergen, D., Grossi, D., & Lackner, M. (2019). On Rational Delegations in Liquid Democracy. Proceedings of the 33rd AAAI Conference on Artificial Intelligence (AAAI 2019), 1796–1803. https://doi.org/10.1609/aaai.v33i01.33011796
Aziz, H., Elkind, E., Huang, S., Lackner, M., Sánchez-Fernández, L., & Skowron, P. (2018). On the Complexity of Extended and Proportional Justified Representation. Proceedings of the 32nd AAAI Conference on Artificial Intelligence (AAAI 2018), 902–909. https://doi.org/10.1609/aaai.v32i1.11478
Csar, T., Lackner, M., & Pichler, R. (2018). Computing the Schulze Method for Large-Scale Preference Data Sets. Proceedings of the 27th International Joint Conference on Artificial Intelligence (IJCAI 2018), 180–187. https://doi.org/10.24963/ijcai.2018/25
Faliszewski, P., Lackner, M., Peters, D., & Talmon, N. (2018). Effective Heuristics for Committee Scoring Rules. Proceedings of the 32nd AAAI Conference on Artificial Intelligence (AAAI 2018), 1023–1030. https://doi.org/10.1609/aaai.v32i1.11459
Lackner, M., & Skowron, P. (2018). Approval-Based Multi-Winner Rules and Strategic Voting. Proceedings of the 27th International Joint Conference on Artificial Intelligence (IJCAI 2018), 340–436. https://doi.org/10.24963/ijcai.2018/47
Lackner, M., & Skowron, P. (2018). Consistent Approval-Based Multi-Winner Rules. Proceedings of the 19th ACM Conference on Economics and Computation (EC 2018), 47–48. https://doi.org/10.1145/3219166.3219170
Bredereck, R., Faliszewski, P., Igarashi, A., Lackner, M., & Skowron, P. (2018). Multiwinner Elections with Diversity Constraints. Proceedings of the 32nd AAAI Conference on Artificial Intelligence (AAAI 2018), 933–940.
Aziz, H., Elkind, E., Faliszewski, P., Lackner, M., & Skowron, P. (2017). The Condorcet Principle for Multiwinner Elections: From Shortlisting to Proportionality. Proceedings of the 26th International Joint Conference on Artificial Intelligence (IJCAI 2017), 84–90. https://doi.org/10.24963/ijcai.2017/13
Brill, M., Freeman, R., Janson, S., & Lackner, M. (2017). Phragmén"s Voting Methods and Justified Representation. Proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI 2017), 406–413. https://doi.org/10.1609/aaai.v31i1.10598
Csar, T., Lackner, M., Pichler, R., & Sallinger, E. (2017). Winner Determination in Huge Elections with MapReduce. Proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI 2017), 451–458. https://doi.org/10.1609/aaai.v31i1.10606
Erdélyi, G., Lackner, M., & Pfandler, A. (2017). Computational Aspects of Nearly Single-Peaked Electorates. Journal of Artificial Intelligence Research (JAIR), 58, 297–337. https://doi.org/10.1613/jair.5210
Lackner, M.-L., & Lackner, M. (2017). On the Likelihood of Single-Peaked Preferences. Social Choice and Welfare, 48(4), 717–745. https://doi.org/10.1007/s00355-017-1033-0
Peters, D., & Lackner, M. (2017). Preferences Single-Peaked on a Circle. Proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI 2017), 649–655. https://doi.org/10.1609/aaai.v31i1.10615
Elkind, E., Lackner, M., & Peters, D. (2017). Structured Preferences. In U. Endriss (Ed.), Trends in Computational Social Choice (pp. 187–207). AI Access.
Skowron, P., Lackner, M., Brill, M., Peters, D., & Elkind, E. (2017). Proportional Rankings. Proceedings of the 26th International Joint Conference on Artificial Intelligence (IJCAI 2017), 409–415. https://doi.org/10.24963/ijcai.2017/58
Elkind, E., Lackner, M., & Peters, D. (2016). Preference Restrictions in Computational Social Choice: Recent Progress. Proceedings of the 25th International Joint Conference on Artificial Intelligence (IJCAI 2016), Early Career Spotlight Track, 4062–4065.
Albert, M. H., Lackner, M.-L., Lackner, M., & Vatter, V. (2016). The Complexity of Pattern Matching for 321-Avoiding and Skew-Merged Permutations. Discrete Mathematics and Theoretical Computer Science, 18 nos. 2, Permutation Patterns 2015. https://doi.org/10.46298/dmtcs.1308
Bruner, M.-L., & Lackner, M. (2016). A Fast Algorithm for Permutation Pattern Matching Based on Alternating Runs. Algorithmica, 75(1), 84–117. https://dx.doi.org/10.1007/s00453-015-0013-y
Erdélyi, G., Lackner, M., & Pfandler, A. (2015). Manipulation of k-Approval in Nearly Single-Peaked Electorates. In T. Walsh (Ed.), Proceedings of the 4th International Conference on Algorithmic Decision Theory (ADT 2015) (Vol. 9346, pp. 71–85). Springer International Publishing. https://dx.doi.org/10.1007/978-3-319-23114-3_5
Elkind, E., Faliszewski, P., Lackner, M., & Obraztsova, S. (2015). The Complexity of Recognizing Incomplete Single-Crossing Preferences. Proceedings of the 29th AAAI Conference on Artificial Intelligence (AAAI 2015), 865–871. https://doi.org/10.1609/aaai.v29i1.9321
Elkind, E., & Lackner, M. (2015). Structure in Dichotomous Preferences. Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI 2015), 2019–2025.
Kronegger, M., Lackner, M., Pfandler, A., & Pichler, R. (2014). A Parameterized Complexity Analysis of Generalized CP-Nets. Proceedings of the 28th AAAI Conference on Artificial Intelligence (AAAI 2014), 1091–1097. https://doi.org/10.1609/aaai.v28i1.8859
Elkind, E., & Lackner, M. (2014). On Detecting Nearly Structured Preference Profiles. Proceedings of the 28th AAAI Conference on Artificial Intelligence (AAAI 2014), 661–667. https://doi.org/10.1609/aaai.v28i1.8823
Lackner, M. (2014). Incomplete Preferences in Single-Peaked Electorates. Proceedings of the 28th AAAI Conference on Artificial Intelligence (AAAI 2014), 742–748. https://doi.org/10.1609/aaai.v28i1.8822
Lackner, M. (2014). Detecting Structure in Permutations and Preferences [PhD Thesis]. Vienna University of Technology.
Bruner, M.-L., & Lackner, M. (2013). The Computational Landscape of Permutation Patterns. Pure Mathematics and Applications: Special Issue for the Permutation Patterns 2012 Conference, 24(2), 83–101.
Erdélyi, G., Lackner, M., & Pfandler, A. (2013). Computational Aspects of Nearly Single-Peaked Electorates. Proceedings of the 27th AAAI Conference on Artificial Intelligence (AAAI 2013), 283–289.
Brueggeman, L., Fellows, M. R., Fleischer, R., Lackner, M., Komusiewicz, C., Koutis, Y., Pfandler, A., & Rosamond, F. A. (2012). Train Marshalling Is Fixed Parameter Tractable. In E. Kranakis, D. Krizanc, & F. Luccio (Eds.), Proceedings of the Sixth International Conference on Fun with Algorithms (FUN 2012) (Vol. 7288, pp. 51–56). Springer Berlin / Heidelberg. https://dx.doi.org/10.1007/978-3-642-30347-0_8
Bruner, M.-L., & Lackner, M. (2012). A Fast Algorithm for Permutation Pattern Matching Based on Alternating Runs. In F. Fomin & P. Kaski (Eds.), Proceedings of the 13th Scandinavian Symposium and Workshops on Algorithm Theory (SWAT 2012) (Vol. 7357, pp. 261–270). Springer Berlin / Heidelberg. https://dx.doi.org/10.1007/978-3-642-31155-0_23
Lackner, M., & Pfandler, A. (2012). Fixed-Parameter Algorithms for Closed World Reasoning. In L. D. Raedt, C. Bessière, D. Dubois, P. Doherty, P. Frasconi, F. Heintz, & P. J. F. Lucas (Eds.), Proceedings of the 20th European Conference on Artificial Intelligence (ECAI 2012) (pp. 492–497). IOS Press. https://dx.doi.org/10.3233/978-1-61499-098-7-492
Lackner, M., Pichler, R., Rümmele, S., & Woltran, S. (2012). Multicut on Graphs of Bounded Clique-Width. In G. Lin (Ed.), Proceedings of the 6th Annual International Conference on Combinatorial Optimization and Applications (COCOA 2012) (Vol. 7402, pp. 115–126). Springer Berlin / Heidelberg. https://dx.doi.org/10.1007/978-3-642-31770-5_11
Lackner, M., & Pfandler, A. (2012). Fixed-Parameter Algorithms for Finding Minimal Models. In G. Brewka, T. Eiter, & S. A. McIlraith (Eds.), Proceedings of the 13th International Conference on Principles of Knowledge Representation and Reasoning (KR 2012) (pp. 85–95). AAAI Press.
Bruner, M.-L., & Lackner, M. (2012). From Peaks to Valleys, Running Up and Down: Fast Permutation Pattern Matching. TinyToCS, Vol. 1.