Wasserstein Collaborative Filtering for Item Cold-start Recommendation
Wasserstein Collaborative Filtering for Item Cold-start Recommendation
Item cold-start recommendation, which predicts user preference on new items that have no user interaction records, is an important problem in recommender systems. In this paper, we model the disparity between user preferences on warm items (those having interaction record) and that on cold-start items using the Wasserstein distance. On …