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Mixed Supervised Graph Contrastive Learning for Recommendation
April 25, 2024, 7:43 p.m. | Weizhi Zhang, Liangwei Yang, Zihe Song, Henry Peng Zou, Ke Xu, Yuanjie Zhu, Philip S. Yu
cs.LG updates on arXiv.org arxiv.org
Abstract: Recommender systems (RecSys) play a vital role in online platforms, offering users personalized suggestions amidst vast information. Graph contrastive learning aims to learn from high-order collaborative filtering signals with unsupervised augmentation on the user-item bipartite graph, which predominantly relies on the multi-task learning framework involving both the pair-wise recommendation loss and the contrastive loss. This decoupled design can cause inconsistent optimization direction from different losses, which leads to longer convergence time and even sub-optimal performance. …
abstract arxiv augmentation collaborative collaborative filtering cs.ir cs.lg filtering framework graph information learn mixed multi-task learning online platforms personalized platforms recommendation recommender systems recsys role suggestions systems type unsupervised vast vital wise
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