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Nikos Karanikolas
Contact info
Address: Building B, University of Patras, 26500 Rio, Greece
Voice: +30 6976403323
E-mail: nkaranik at ceid dot upatras dot gr, nkaran at gmail dot com
Skype ID: nkaran
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.
Teaching duties
 Department of Computer Engineering and Informatics, University of Patras, Greece
 Instructor for the courses: Communication Algorithms (2019-2020), and Cryptography (2019-2020) under the programme "Acquisition of Academic Teaching Experience"
 Teaching Assistant for the courses: Communication Algorithms (2007-2010), Cryptography (2007-2014), Theory of Computing (2007 - 2014)
Academic Appointments
 Postdoctoral Researcher (November 2017 – present)
 Department of Computer Engineering and Informatics, University of Patras, Greece
 Subject: Computational Social Choice and Argumentation for Collective Decision-making
 Supervisor: Professor Christos Kaklamanis

 Research Engineer/Postdoctoral Researcher (November 2016 – October 2017)
 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

 Postdoctoral Researcher (October 2014 – October 2015)
 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

 PhD in Computer Science and Technology (June 2014)
 Thesis: Computational Aspects in Social Choice (in greek)
 Advisor: Professor Christos Kaklamanis

 Msc in Computer Science and Technology
 Thesis: Computational Aspects in Social Choice: A study of Dodgson elections
 Advisor: Professor Christos Kaklamanis

 Diploma in Computer Engineering and Informatics
Journal 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.


Conference 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. 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).

Other Publications
 1.   N. Karanikolas, M. Kyropoulou, and T. B. Sorensen. Editor's puzzle: Borrowing as cheaply as possible. SIGecom Exchanges, 10(2).
Other interests/activities
 Radio producer in the Radio station of the University of Patras, sports, travel, cinema and photography.