Proceedings of the 30th ACM International Conference on Information &Amp; Knowledge Management 2021
DOI: 10.1145/3459637.3482480
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Social Recommendation with Self-Supervised Metagraph Informax Network

Abstract: In recent years, researchers attempt to utilize online social information to alleviate data sparsity for collaborative filtering, based on the rationale that social networks offers the insights to understand the behavioral patterns. However, due to the overlook of inter-dependent knowledge across items (e.g., categories of products), existing social recommender systems are insufficient to distill the heterogeneous collaborative signals from both user and item side. In this work, we propose Self-Supervised Meta… Show more

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Cited by 66 publications
(18 citation statements)
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“…It performs dropout operations over the graph connection structures with different strategies, i.e., node dropout, edge dropout and random walk. SMIN [25] is a social-aware recommendation method with generative self-supervision. Inspired by the existing contrastive learning paradigms, this work proposes a new graph contrastive representation framework with the adaptive multi-behavior modeling, by exploring various semantic aspects of user-item interactions.…”
Section: Contrastive Representation Learningmentioning
confidence: 99%
“…It performs dropout operations over the graph connection structures with different strategies, i.e., node dropout, edge dropout and random walk. SMIN [25] is a social-aware recommendation method with generative self-supervision. Inspired by the existing contrastive learning paradigms, this work proposes a new graph contrastive representation framework with the adaptive multi-behavior modeling, by exploring various semantic aspects of user-item interactions.…”
Section: Contrastive Representation Learningmentioning
confidence: 99%
“…It aims to learn quality discriminative representations by contrasting positive and negative samples from different views. Several recent attempts have brought the self-supervised learning to the recommendation [21,22,43,44]. For example, SGL [44] performs dropout operations over the graph connection structures with different strategies, i.e.,, node dropout, edge dropout and random walk.…”
Section: Related Workmentioning
confidence: 99%
“…Heterogeneous Graph Representation. Modeling the heterogeneous context of graphs has already received some attention [4,12,21,27,40]. For example, some studies leverage random walks to construct meta-paths over the heterogeneous graph for node embeddings, including metapath2vec [4] and HERec [27].…”
Section: Related Workmentioning
confidence: 99%