Forthcoming

W1 The efficiency of resource allocation mechanisms for budget-constrained users
Ioannis Caragiannis and Alexandros A. Voudouris
[ arXiv version (July 2017) | slides ]
J3 Near-optimal asymmetric binary matrix partitions
Fidaa Abed, Ioannis Caragiannis, and Alexandros A. Voudouris
Algorithmica, in press.
[ algo paper ]

2017

J2 Efficiency and complexity of price competition among single-product vendors
Ioannis Caragiannis, Xenophon Chatzigeorgiou, Panagiotis Kanellopoulos, George A. Krimpas, Nikos Protopapas, and Alexandros A. Voudouris
Artificial Intelligence, volume 248, pages 9-25, 2017
[ aij paper ]
C8 Bounding the inefficiency of compromise
Ioannis Caragiannis, Panagiotis Kanellopoulos, and Alexandros A. Voudouris
Proceedings of the 26th International Joint Conference on Artificial Intelligence (IJCAI), pages 142-148, 2017
[ ijcai paper | arXiv version (February 2017) | poster ]
C7 Optimizing positional scoring rules for rank aggregation
Ioannis Caragiannis, Xenophon Chatzigeorgiou, George A. Krimpas, and Alexandros A. Voudouris
Proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI), pages 430-436, 2017
[ aaai paper | arXiv version (September 2016) | slides ]

2016

J1 Welfare guarantees for proportional allocations
Ioannis Caragiannis and Alexandros A. Voudouris
Theory of Computing Systems, volume 59(4), pages 581-599, 2016
[ tocs paper ]
C6 How effective can simple ordinal peer grading be?
Ioannis Caragiannis, George A. Krimpas, and Alexandros A. Voudouris
Proceedings of the 17th ACM Conference on Economics and Computation (EC), pages 323-340, 2016
[ ec paper | arXiv version (February 2016) | slides ]
C5 co-rank: an online tool for collectively deciding efficient rankings among peers
Ioannis Caragiannis, George A. Krimpas, Marianna Panteli, and Alexandros A. Voudouris
Proceedings of the 30th AAAI Conference on Artificial Intelligence (AAAI), pages 4351-4352, 2016
[ co-rank | aaai paper | poster ]

2015

C4 Near-optimal asymmetric binary matrix partitions
Fidaa Abed, Ioannis Caragiannis, and Alexandros A. Voudouris
Proceedings of the 40th International Symposium on Mathematical Foundations of Computer Science (MFCS), LNCS 9235, Springer, pages 1-13, 2015
[ mfcs paper | arXiv version (April 2015) | slides ]
C3 Efficiency and complexity of price competition among single-product vendors
Ioannis Caragiannis, Xenophon Chatzigeorgiou, Panagiotis Kanellopoulos, George A. Krimpas, Nikos Protopapas, and Alexandros A. Voudouris
Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI), pages 25-31, 2015
[ ijcai paper | arXiv version (February 2015) | poster ]
C2 Aggregating partial rankings with applications to peer grading in massive online open courses
Ioannis Caragiannis, George A. Krimpas, and Alexandros A. Voudouris.
Proceedings of the 14th International Conference on Autonomous Agents and Multi-Agent Systems (AAMAS), pages 675-683, 2015
[ aamas paper | arXiv version (November 2014) | poster | slides ]

2014

C1 Welfare guarantees for proportional allocations
Ioannis Caragiannis and Alexandros A. Voudouris
Proceedings of the 7th International Symposium on Algorithmic Game Theory (SAGT), LNCS 8768, Springer, pages 206-217, 2014
[ sagt paper | arXiv version (February 2014) | slides ]
D2 On the efficiency of divisible resource allocation mechanisms
Alexandros A. Voudouris
M.Sc. thesis, Department of Computer Engineering and Informatics, University of Patras, Greece, December 2014
[ pdf (in greek) ]

2013

D1 Search algorithms for natural deduction proofs
Alexandros A. Voudouris
Diploma thesis, Department of Computer Engineering and Informatics, University of Patras, Greece, July 2013
[ pdf (in greek) | code ]