no code implementations • 3 Dec 2020 • Martin Bullinger, Warut Suksompong, Alexandros A. Voudouris
Schelling's model is an influential model that reveals how individual perceptions and incentives can lead to residential segregation.
Computer Science and Game Theory
no code implementations • NeurIPS 2020 • Georgios Birmpas, Jiarui Gan, Alexandros Hollender, Francisco J. Marmolejo-Cossío, Ninad Rajgopal, Alexandros A. Voudouris
For this strategic behavior to be successful, the main challenge faced by the follower is to pinpoint the payoffs that would make the learning algorithm compute a commitment so that best responding to it maximizes the follower's utility, according to his true payoffs.
no code implementations • 18 Sep 2016 • Ioannis Caragiannis, Xenophon Chatzigeorgiou, George A. Krimpas, Alexandros A. Voudouris
Then, the important optimization problem to be solved is to compute the positional scoring rule whose outcome, when applied to the profile of individual rankings, is as close as possible to the part of the underlying true ranking we know.
no code implementations • 25 Feb 2016 • Ioannis Caragiannis, George A. Krimpas, Alexandros A. Voudouris
When statistical information about the grading behaviour of students is available (in terms of a noise matrix that characterizes the grading behaviour of the average student from a student population), the framework can be used to compute the optimal rule from this class with respect to a series of performance objectives that compare the ranking returned by the aggregation rule to the underlying ground truth ranking.
no code implementations • 13 Feb 2015 • Ioannis Caragiannis, Xenophon Chatzigeorgiou, Panagiotis Kanellopoulos, George A. Krimpas, Nikos Protopapas, Alexandros A. Voudouris
Motivated by recent progress on pricing in the AI literature, we study marketplaces that contain multiple vendors offering identical or similar products and unit-demand buyers with different valuations on these vendors.
no code implementations • 17 Nov 2014 • Ioannis Caragiannis, George A. Krimpas, Alexandros A. Voudouris
This is a novel application area for social choice concepts and methods where the important problem to be solved is as follows: how should the assignments be distributed so that the collected individual rankings can be easily merged into a global one that is as close as possible to the ranking that represents the relative performance of the students in the assignment?
