SamWalker: Social Recommendation with Informative Sampling Strategy
WWW '19: The Web Conference on The World Wide Web Conference WWW 2019, pp. 228-239, 2019.
Recommendation from implicit feedback is a highly challenging task due to the lack of reliable negative feedback data. Only positive feedback are observed and the unobserved feedback can be attributed to two reasons: unknow or dislike. Existing methods address this challenge by treating all the un-observed data as negative (dislike) but d...More
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