Top-N recommendation
Revision as of 05:18, 17 January 2012 by Zeno Gantner (talk | contribs) (Top-N recommendation is an evaluation protocol, not a measure. Back to Category: Evaluation)
Top-N recommendation is a variant of or an evaluation mode for the item prediction task. The specific task is to predict the best N items. Only those N items will be presented to the user or taken into account for computing the evaluation result. Typical evaluation measures for top-N recommendation are normalized discounted cumulative gain (NDCG) and precision.