In multiagent settings where the agents have different preferences, preference aggregation is a central issue. Voting is a general method for preference aggregation, but seminal r...
All previous work on “candidate-control” manipulation of elections has been in the model of full-information, simultaneous voting. This is a problem, since in quite a few real...
We resolve an open problem regarding the complexity of unweighted coalitional manipulation, namely, the complexity of Copeland -manipulation for {0, 1}. Copeland , 0 1, is an...
Piotr Faliszewski, Edith Hemaspaandra, Henning Sch...
We study the manipulation of voting schemes, where a voter lies about their preferences in the hope of improving the election’s outcome. All voting schemes are potentially manip...
Encouraging voters to truthfully reveal their preferences in an election has long been an important issue. Previous studies have shown that some voting protocols are hard to manip...