A Survey on Neural Recommendation: From Collaborative Filtering to Content and Context Enriched Recommendation

• URL: http://arxiv.org/abs/2104.13030v1
• Date: Tue, 27 Apr 2021 08:03:52 GMT
• Title: A Survey on Neural Recommendation: From Collaborative Filtering to Content and Context Enriched Recommendation
• Authors: Le Wu, Xiangnan He, Xiang Wang, Kun Zhang, Meng Wang
• Abstract summary: Research in recommendation has shifted to inventing new recommender models based on neural networks. In recent years, we have witnessed significant progress in developing neural recommender models.
• Score: 70.69134448863483
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Influenced by the stunning success of deep learning in computer vision and language understanding, research in recommendation has shifted to inventing new recommender models based on neural networks. In recent years, we have witnessed significant progress in developing neural recommender models, which generalize and surpass traditional recommender models owing to the strong representation power of neural networks. In this survey paper, we conduct a systematic review on neural recommender models, aiming to summarize the field to facilitate future progress. Distinct from existing surveys that categorize existing methods based on the taxonomy of deep learning techniques, we instead summarize the field from the perspective of recommendation modeling, which could be more instructive to researchers and practitioners working on recommender systems. Specifically, we divide the work into three types based on the data they used for recommendation modeling: 1) collaborative filtering models, which leverage the key source of user-item interaction data; 2) content enriched models, which additionally utilize the side information associated with users and items, like user profile and item knowledge graph; and 3) context enriched models, which account for the contextual information associated with an interaction, such as time, location, and the past interactions. After reviewing representative works for each type, we finally discuss some promising directions in this field, including benchmarking recommender systems, graph reasoning based recommendation models, and explainable and fair recommendations for social good.

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