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arXiv · 1410.5186

On the Hardness of Bribery Variants in Voting with CP-Nets

Britta Dorn·Dominikus Krüger
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Abstract

We continue previous work by Mattei et al. (Mattei, N., Pini, M., Rossi, F., Venable, K.: Bribery in voting with CP-nets. Ann. of Math. and Artif. Intell. pp. 1--26 (2013)) in which they study the computational complexity of bribery schemes when voters have conditional preferences that are modeled by CP-nets. For most of the cases they considered, they could show that the bribery problem is solvable in polynomial time. Some cases remained open---we solve two of them and extend the previous results to the case that voters are weighted. Moreover, we consider negative (weighted) bribery in CP-nets, when the briber is not allowed to pay voters to vote for his preferred candidate.

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Britta Dorn, Dominikus Krüger. 2016-05-18. On the Hardness of Bribery Variants in Voting with CP-Nets. https://doi.org/10.1007/s10472-015-9469-3

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