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arXiv · 2303.10509

Risk-Limiting Audits for Condorcet Elections

Michelle Blom·Peter J. Stuckey·Vanessa Teague·Damjan Vukcevic
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Abstract

Elections where electors rank the candidates (or a subset of the candidates) in order of preference allow the collection of more information about the electors' intent. The most widely used election of this type is Instant-Runoff Voting (IRV), where candidates are eliminated one by one, until a single candidate holds the majority of the remaining ballots. Condorcet elections treat the election as a set of simultaneous decisions about each pair of candidates. The Condorcet winner is the candidate who beats all others in these pairwise contests. There are various proposals to determine a winner if no Condorcet winner exists. In this paper we show how we can efficiently audit Condorcet elections for a number of variations. We also compare the audit efficiency (how many ballots we expect to sample) of IRV and Condorcet elections.

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Michelle Blom, Peter J. Stuckey, Vanessa Teague, Damjan Vukcevic. 2023-03-18. Risk-Limiting Audits for Condorcet Elections. https://doi.org/10.1007/978-3-031-48806-1_6

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