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I am trying to use MPR as a metric to evaluate my recommendation system based on implicit feedback. Can somebody please explain MPR? I have gone through this paper

However, I can't seem to get an intuitive understanding.

Any help would be appreciated.

EDIT : I went through Microsoft's research on metrics for recommendation engine metrics

It is recommended that MPR is recommended when we're looking for one 'positive' result. Can somebody also explain why that is the case?

EDIT 2 : Definition of MPR

red_devil
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    what is the question here ? – eliasah Apr 19 '16 at 14:24
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    Can I get an intuitive explanatation on MPR? Why is it recommended for a case when we're looking for only one 'positive' result? – red_devil Apr 19 '16 at 14:38
  • Can you provide a definition of MPR? None of the provided links contain it (from a quick glance). – Tomer Levinboim Apr 20 '16 at 22:36
  • Off-topic question - Any particular reason on deleting this [latest question](http://stackoverflow.com/questions/36771359/implementation-of-mean-percentile-rank-for-recommender-system-with-implicit-feed)? I might have made some headway on it :) – Divakar Apr 21 '16 at 16:41
  • Hey! Sorry about that. I realized that my question was a bit of a duplicate: http://stackoverflow.com/questions/12414043/map-each-list-value-to-its-corresponding-percentile – red_devil Apr 21 '16 at 16:54
  • Apologies if I wasted your time! I didn't mean to. – red_devil Apr 21 '16 at 16:54

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