Analysis of the Ballot Shuffling Attack on Irish ballot counting for Proportional Representation by Single Transferable Vote (PR-STV)
- Dermot Robert Cochran
Research Output:
Book / Anthology / Report
Report
Open access
Publication Information
Output type
Research Output:
Book / Anthology / Report
Report
Original language
EnglishPublication milestones
- Published - 08/2015
Publication status
Published - 08/2015
Place of publication
CopenhagenEdition
TR-2015-188Publisher
IT-Universitetet i København, DenmarkBook series
- Book series name: IT University Technical Report Series
Series number: TR-2015-188
ISSN: 1600-6100
ISBN (Electronic)
978-87-7949-352-0Abstract
The current Irish legislation for counting of ballots does not fully comply with the true meaning of proportional representation by single
transferable vote. This is due to the way in which second and
subsequent transfers are handled, the legislative requirement to only count the last set of ballots transferred and the sensitivity of the counting algorithm to the order in which ballots are shuffled. A formal model of PR-STV is used to identify scenarios in which the counting under current electoral laws gives a different result compared to what would have happened using another ordering of the same ballots.
transferable vote. This is due to the way in which second and
subsequent transfers are handled, the legislative requirement to only count the last set of ballots transferred and the sensitivity of the counting algorithm to the order in which ballots are shuffled. A formal model of PR-STV is used to identify scenarios in which the counting under current electoral laws gives a different result compared to what would have happened using another ordering of the same ballots.
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