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MRR

Creator
Creator
Seonglae ChoSeonglae Cho
Created
Created
2024 Oct 24 22:31
Editor
Editor
Seonglae ChoSeonglae Cho
Edited
Edited
2025 May 20 21:55
Refs
Refs

Mean Reciprocal Rank @ K, MRR@K

  • Only binary relevance
  • Disregards the ranks after the first relevant item
 
 
 
Mean reciprocal rank
The mean reciprocal rank is a statistic measure for evaluating any process that produces a list of possible responses to a sample of queries, ordered by probability of correctness. The reciprocal rank of a query response is the multiplicative inverse of the rank of the first correct answer: 1 for first place, .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1⁄2 for second place, 1⁄3 for third place and so on. The mean reciprocal rank is the average of the reciprocal ranks of results for a sample of queries Q:[1][2]
Mean reciprocal rank
https://en.wikipedia.org/wiki/Mean_reciprocal_rank
 

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