Approximation algorithms for covering/packing integer programs
Journal of Computer and System Sciences
Journal of Computer and System Sciences
Anyone but him: The complexity of precluding an alternative
Artificial Intelligence
Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems - Volume 2
Approximability of manipulating elections
AAAI'08 Proceedings of the 23rd national conference on Artificial intelligence - Volume 1
Multimode control attacks on elections
IJCAI'09 Proceedings of the 21st international jont conference on Artifical intelligence
Using complexity to protect elections
Communications of the ACM
Control complexity in fallback voting
CATS '10 Proceedings of the Sixteenth Symposium on Computing: the Australasian Theory - Volume 109
Information and Computation
Approximation Algorithms
The complexity of manipulative attacks in nearly single-peaked electorates
Proceedings of the 13th Conference on Theoretical Aspects of Rationality and Knowledge
The complexity of voter partition in Bucklin and fallback voting: solving three open problems
The 10th International Conference on Autonomous Agents and Multiagent Systems - Volume 2
Cloning in elections: finding the possible winners
Journal of Artificial Intelligence Research
How hard is it to control an election?
Mathematical and Computer Modelling: An International Journal
Control complexity in bucklin, fallback, and plurality voting: an experimental approach
SEA'12 Proceedings of the 11th international conference on Experimental Algorithms
The complexity of manipulative attacks in nearly single-peaked electorates
Artificial Intelligence
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Although manipulation and bribery have been extensively studied under weighted voting, there has been almost no work done on election control under weighted voting. This is unfortunate, since weighted voting appears in many important natural settings. In this paper, we study the complexity of controlling the outcome of weighted elections through adding and deleting voters. We obtain polynomial-time algorithms, NP-completeness results, and for many NP-complete cases, approximation algorithms. Our work shows that for quite a few important cases, either polynomial-time exact algorithms or polynomial-time approximation algorithms exist.