Mean Average Precision

Creator
Creator
Seonglae Cho
Created
Created
2024 Oct 31 10:31
Editor
Edited
Edited
2025 May 21 11:55
Refs
Refs
Precision

Mean Average Precision (MAP)

  • More weight to the top items
  • Only binary relevance
Most standard among the TREC community is MAP which provides a single-figure measure of quality across recall levels.
MAP=1Qq=1Q,APq=1Rqk=1nPq(k)relq(k)MAP = \frac{1}{|Q|}\sum_{q=1}^{|Q|}, AP_q = \frac{1}{R_q} \sum_{k=1}^nP_q(k)\cdot rel_q(k)
 
 
 
 
 
 
 

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