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arXiv 1901.09217cs.GTcs.MA
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多赢家投票规则是什么?二维的欧氏区域上的一个实验

What Do Multiwinner Voting Rules Do? An Experiment Over the Two-Dimensional Euclidean Domain

Edith Elkind, Piotr Faliszewski, Jean-Francois Laslier, Piotr Skowron, Arkadii Slinko, Nimrod Talmon

摘要:

我们可视化的聚合输出流行的多赢家投票规则-SNTV,STV,集团,k-Borda,门罗,Chamberlin-Courant和HarmonicBorda-根据二维的【形】欧几里德模型生成的选举。我们考虑三个应用程序的多赢家投票,即,议会选举,投资组合/电影选择,和入围名单,并使用我们的结果来了解我们的规则似乎是最适合每个应用程序。特别是,我们表明,STV(在真正的高风险选举中使用的少数几个非平凡的规则之一)表现出优异的性能,而集团规则(也经常在实践中使用)表现不佳。

英文摘要:

We visualize aggregate outputs of popular multiwinner voting rules--SNTV, STV, Bloc, k-Borda, Monroe, Chamberlin--Courant, and HarmonicBorda--for elections generated according to the two-dimensional Euclidean model. We consider three applications of multiwinner voting, namely, parliamentary elections, portfolio/movie selection, and shortlisting, and use our results to understand which of our rules seem to be best suited for each application. In particular, we show that STV (one of the few nontrivial rules used in real high-stake elections) exhibits excellent performance, whereas the Bloc rule (also often used in practice) performs poorly.

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