Nikos Karanikolas
Computer Engineering and Informatics Department, University of Patras, 26504 Rio, Greece
+30 6976403323
nkaranik@ceid.upatras.gr | nkaran@gmail.com
Research Interests
- Computational Social Choice
- Argumentation Framework
- Information Visualization
- Design and Analysis of Algorithms
- Computational Complexity
- Approximation Algorithms
- Algorithmic Aspects of Communication Networks
- Routing Algorithms
- Homomorphic Cryptography
Teaching Experience - Adjunct Lecturer
Communication Algorithms
Department of Computer Engineering and Informatics, University of Patras, Greece (2019-Present)
Course MaterialsCryptography
Department of Computer Engineering and Informatics, University of Patras, Greece (2019-Present)
Course MaterialsAcademic Appointments
Department of Computer Engineering and Informatics, University of Patras, Greece
Subject: Computational Social Choice and Argumentation for Collective Decision-making
Supervisor: Professor Christos Kaklamanis
GraphIK, LIRMM (University of Montpellier) and INRA, France
Subject: Argumentation and Computational Social Choice in Agricultural applications
Research Collaborators: Research Engineer (HDR qualified Senior Researcher) Patrice Buche, Associate Professor Madalina Croitoru, Research Scientist Rallou Thomopoulos and Research Scientist Pierre Bisquert
Laboratoire d'Informatique de Grenoble, Institut polytechnique de Grenoble, France
Subject: Interactive visualization of voting procedures
Supervisors: Assistant Professors Renaud Blanch and Sylvain Bouveret
Education
Department of Computer Engineering and Informatics, University of Patras, Greece
Thesis: Computational Aspects in Social Choice (in greek)
Advisor: Professor Christos Kaklamanis
Department of Computer Engineering and Informatics, University of Patras, Greece
Thesis: Computational Aspects in Social Choice: A study of Dodgson elections
Advisor: Professor Christos Kaklamanis
Department of Computer Engineering and Informatics, University of Patras, Greece
Thesis: Routing algorithms in P2P Networks
Advisor: Professor Christos Kaklamanis
Publications
1. I. Caragiannis, J. A. Covey, M. Feldman, C. M. Homan, C. Kaklamanis, N. Karanikolas, A. D. Procaccia, and J. S. Rosenschein. On the approximability of Dodgson and Young elections. Artificial Intelligence, 187-188, pp. 31-51, 2012.
2. I. Caragiannis, C. Kaklamanis, N. Karanikolas, and A. D. Procaccia. Socially desirable approximations for Dodgson's voting rule. ACM Transactions on Algorithms, Volume 10, Issue 2, February 2014.
3. N. Karanikolas, P. Bisquert, P. Buche, C. Kaklamanis, and R. Thomopoulos. A Decision Support Tool for Agricultural Applications Based on Computational Social Choice and Argumentation. International Journal of Agricultural and Environmental Information Systems (IJAEIS), Volume 9, Issue 3, pp. 54-73, 2018.
4. P. Bisquert, M. Croitoru, C. Kaklamanis and N. Karanikolas. A Decision-Making approach where Argumentation added value tackles Social Choice deficiencies. Progress in Artificial Intelligence, June 2019, Volume 8, Issue 2, pp. 229-239.
5. I. Caragiannis, C. Kaklamanis, N. Karanikolas, G. A. Krimpas. Evaluating Approval-Based Multiwinner Voting in Terms of Robustness to Noise. Journal of Autonomous Agents and Multi-Agent Systems (JAAMAS), Volume 36, Issue 1, 2022.
6. N. Karanikolas, C. Kaklamanis, and S. Nikolopoulos, AQUA: A blockchain based multi-winner e-voting system, Technium, vol. 11, pp. 32–43, Jul. 2023.
1. I. Caragiannis, J. A. Covey, M. Feldman, C. M. Homan, C. Kaklamanis, N. Karanikolas, A. D. Procaccia, and J. S. Rosenschein. On the approximability of Dodgson and Young elections. In Proceedings of the 20th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA 09), pp. 1058-1067, 2009.
2. I. Caragiannis, C. Kaklamanis, N. Karanikolas, and A. D. Procaccia. Socially desirable approximations for Dodgson voting rule. In Proceedings of the 11th ACM Conference on Electronic Commerce (EC10), pp. 253-262, 2010.
3. N. Karanikolas, R. Blanch and S. Bouveret. Edge-Compressed Majority Graph: Where Social Choice Meets Information Visualization. In Proceedings of the Sixth International Workshop on Computational Social Choice (COMSOC 16)
4. P. Bisquert, P. Buche, M. Croitoru, N. Karanikolas and R. Thomopoulos. Selection of agro-waste valorisation routes based on a computational social choice and argumentation decision support tool (Extended Abstract). In EFITA WCCA CONGRESS, European conference dedicated to the future use of ICT in the agri-food sector, bioresource and biomass sector, 2017
5. P. Bisquert, M. Croitoru, N. Karanikolas. A Qualitative Decision-Making Approach Overlapping Argumentation and Social Choice. In Proceedings of the ADT 2017, the 5th International Conference on Algorithmic Decision Theory, pp. 344-349, 2017.
6. N. Karanikolas, M. Croitoru, P. Bisquert, C. Kaklamanis, R. Thomopoulos, and B. Yun. Multi-Criteria Decision Making with Existential Rules using Repair Techniques. In Proceedings of the AI-2018, Thirty-eighth SGAI International Conference on Artificial Intelligence, pp. 177-183, 2018 .
7. N. Karanikolas, P. Bisquert and C. Kaklamanis. A Voting Argumentation Framework: Considering the Reasoning behind Preferences. In Proceedings of the 11th International Conference on Agents and Artficial Intelligence (ICAART 19), Volume 1, pp. 42-53, 2019 (Best Paper Award Runner-up).
8. I. Caragiannis, C. Kaklamanis, N. Karanikolas and G. A. Krimpas. Evaluating Approval-Based Multiwinner Voting in Terms of Robustness to Noise. In Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence (IJCAI 2020)), pp. 74-80, 2020.
9. H. Salaga, N. Karanikolas, and C. Kaklamanis. “SHeMeD”: An Application on Secure Computation of Medical Cloud Data Based on Homomorphic Encryption. In Proceedings of the International Conference on Computational Science and its Applications (ICCSA 2023), Part VI, pp. 116–133.
10. A. Stefanopoulos, E. Papaioannou, N. Karanikolas, G. Moisiadis, C. Kaklamanis. "Check It Yourself": an online crowdsourcing-based application for checking news validity exploiting Social Choice Theory and InfoVis. In Proceedings of the 15th annual International Conference on Education and New Learning Technologies (EDULEARN 23), IATED, 2023, to appear.
11. E. Rouchota, E. Papaioannou, N. Karanikolas, K. Papaioannou, G. Moisiadis, C. Kaklamanis. "CT-PEL": an online platform for gaining insight into regional cultural tourism. In Proceedings of the 16th annual International Conference of Education, Research and Innovation (ICERI 23), IATED, to appear, 2023.
12. P. Antoniou, E. Papaioannou, N. Karanikolas, G. Moisiadis, C. Kaklamanis. "PCT": an online crowdsourcing-based application for promoting cultural tourism by exploiting Social Choice Theory and InfoVis. In Proceedings of the 16th annual International Conference of Education, Research and Innovation (ICERI 23)}, IATED, to appear, 2023.
13. K. Papaioannou, N. Karanikolas, E. Papaioannou. The impact of technology on the literature publishing industry in Spain. In Proceedings of the 19th annual International Technology, Education and Development Conference (INTED 25), IATED, pp. 3826-3831, 2025.
14. K. Papaioannou, N. Karanikolas, E. Papaioannou. The contribution of machine translation to the preservation of regional languages in Spain. In Proceedings of the 19th annual International Technology, Education and Development Conference (INTED 25), IATED, pp. 3794-3803, 2025.
15. K. Troumpounis, E. Papaioannou, N. Karanikolas, C. Kaklamanis. A Web Application For MST Computation In Random And User-defined Graphs. In Proceedings of the 16th annual International Conference on Education and New Learning Technologies (EDULEARN 25), IATED, 2025, to appear.
16. I. Sarris, E. Papaioannou, N. Karanikolas, C. Kaklamanis. ”Find The Way”: A Serious Game For The Minimum Spanning Tree Problem. In Proceedings of the 16th annual International Conference on Education and New Learning Technologies (EDULEARN 25), IATED, 2025, to appear.
17. D. Sarioglou, E. Papaioannou, N. Karanikolas, C. Kaklamanis. ”RSA... Made Simple”: An Online Educational And Training Application. In Proceedings of the 16th annual International Conference on Education and New Learning Technologies (EDULEARN 25), IATED, 2025, to appear.
Other Interests
Radio producer in the Radio station of the University of Patras, sports, travel, cinema, and photography.