Multi-Winner Elections: Complexity of Manipulation, Control and Winner-Determination
Proceedings of the Twentieth International Joint Conference on Artificial Intelligence. Pages 1476-1480.
Abstract
Although recent years have seen a surge of interest in the computational aspects of social choice, no attention has previously been devoted to elections with multiple winners, e.g., elections of an assembly or committee. In this paper, we fully characterize the worst-case complexity of manipulation and control in the context of four prominent multi-winner voting systems. Additionally, we show that several tailor-made multi-winner voting schemes are impractical, as it is NP-hard to select the winners in these schemes.
Ariel D. Procaccia, Jeffrey S. Rosenschein, and Aviv Zohar. 2007. Multi-Winner Elections: Complexity of Manipulation, Control and Winner-Determination. In Proceedings of the Twentieth International Joint Conference on Artificial Intelligence, IJCAI-07. IJCAI, 1476–1480. https://ijcai.org/proceedings/2007/238
Procaccia, A. D., Rosenschein, J. S., & Zohar, A. (2007). Multi-Winner Elections: Complexity of Manipulation, Control and Winner-Determination. In Proceedings of the Twentieth International Joint Conference on Artificial Intelligence, IJCAI-07 (pp. 1476–1480). IJCAI. https://ijcai.org/proceedings/2007/238
@inproceedings{ijcai2007p238,
title = {Multi-Winner Elections: Complexity of Manipulation, Control and Winner-Determination},
author = {Procaccia, Ariel D. and Rosenschein, Jeffrey S. and Zohar, Aviv},
booktitle = {Proceedings of the Twentieth International Joint Conference on
Artificial Intelligence, {IJCAI-07}},
publisher = {International Joint Conferences on Artificial Intelligence},
editor = {Ramon López de Mántaras},
pages = {1476--1480},
year = {2007},
url = {https://ijcai.org/proceedings/2007/238},
}
TY - CPAPER TI - Multi-Winner Elections: Complexity of Manipulation, Control and Winner-Determination AU - Procaccia, Ariel D. AU - Rosenschein, Jeffrey S. AU - Zohar, Aviv T2 - Proceedings of the Twentieth International Joint Conference on Artificial Intelligence, IJCAI-07 PB - International Joint Conferences on Artificial Intelligence PY - 2007 SP - 1476 EP - 1480 UR - https://ijcai.org/proceedings/2007/238 ER -Copied
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