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Bayesian ranking of items with up and downvotes or 5 star ratings

julesjacobs.github.io 7 min read

Evan Miller wrote a great article How Not To Sort By Average Rating . He shows that simple formulas like score = upvotes - downvotes or score = upvotes / (upvotes + downvotes) don’t work. He proposes to use the lower bound of the Wilson score confidence interval. The formula is complicated and somewhat of a hack…
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Math & AlgorithmsDatabases & Data2015

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SubmittedTitle on HNPointsComments
Oct 31, 2015Bayesian ranking of items with up and downvotes or 5 star ratings by striking16226
Nov 16, 2017Bayesian ranking of items with up and downvotes or 5 star ratings (2015) by mooreds15924

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