3 research outputs found
Bribery Can Get Harder in Structured Multiwinner Approval Election
We study the complexity of constructive bribery in the context of structured
multiwinner approval elections. Given such an election, we ask whether a
certain candidate can join the winning committee by adding, deleting, or
swapping approvals, where each such action comes at a cost and we are limited
by a budget. We assume our elections to either have the candidate interval or
the voter interval property, and we require the property to hold also after the
bribery. While structured elections usually make manipulative attacks
significantly easier, our work also shows examples of the opposite behavior. We
conclude by presenting preliminary insights regarding the destructive variant
of our problem.Comment: 23 pages, 1 figure, 1 table, published in the Proceedings of AAMAS-2