rankScore {rrecsys} | R Documentation |
Rank Score
Description
Rank Score extends the recall metric to take the positions of correct items in a ranked list into account.
Usage
rankScore(recommendedIDX, testSetIDX, alpha)
Arguments
recommendedIDX |
indices of the recommended items. Object of class |
testSetIDX |
indices of the items in the test set. Object of class |
alpha |
is the ranking half life. Object of class |
Details
Rank Score is defined as the ratio of the Rank Score of the correct items to best theoretical Rank Score achievable for the user:
[Package rrecsys version 0.9.7.3.1 Index]