2021

Contrastive Learning for Recommender System

Liu, Zhuang, Ma, Yunpu, Ouyang, Yuanxin et al.

Understand

Recommender systems, which analyze users' preference patterns to suggest potential targets, are indispensable in today's society.

  • Collaborative Filtering (CF) is the most popular recommendation model.
  • Specifically, Graph Neural Network (GNN) has become a new state-of-the-art for CF.
  • In the GNN-based recommender system, message dropout is usually used to alleviate the selection bias in the user-item bipartite graph.

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