Instant Runoff Normalized Ratings: Difference between revisions
Instant Runoff Normalized Ratings (view source)
Revision as of 15:04, 18 December 2021
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'''Instant Runoff Normalized Ratings''', or '''IRNR''' is a method devised by Brian Olson.<ref>{{cite web | title=Election Methods Defined | website=bolson.org | url=https://bolson.org/voting/methods.html#IRNR | ref={{sfnref | bolson.org}} | access-date=2021-12-18}}</ref> Based on a [[ratings ballot]],
The first step is normalizing, which can happen in two ways:
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<math>\begin{equation}{C_{i}}\end{equation}</math> = ratings of each candidate in the vote, before the normalization.
The process repeats with a normalization step that ignores disqualified choices. A voter's voting power is thus redistributed among the remaining choices.
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It is possible to normalize by first observing the highest score the voter gave to any candidate, and pretending that is the maximum allowed score when interacting with that voter's ballot. In other words, a voter who gave their favorite a 3 out of 5 could have their ballot normalized such that the highest score they give to any candidate in any round of IRNR would be a max of 3 out of 5.
==Related
* [[Distributed Voting]] (specific variant, based on L1 norm)
== External
* [http://bolson.org/voting/vote_util/org/bolson/vote/IRNR.java Java code that implements IRNR]
*[http://bolson.org/voting/IRNR_explaination.pdf Instant Runoff Normalized Ratings: an Election Method by Brian Olson]
==References==
<references/>
[[Category:Single-winner voting methods]]
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