Multi-Behavior Recommender Systems: A Survey

• URL: http://arxiv.org/abs/2503.06963v1
• Date: Mon, 10 Mar 2025 06:22:37 GMT
• Title: Multi-Behavior Recommender Systems: A Survey
• Authors: Kyungho Kim, Sunwoo Kim, Geon Lee, Jinhong Jung, Kijung Shin,
• Abstract summary: Multi-behavior recommender systems leverage diverse interactions to enhance recommendation quality.<n>We systematically categorize existing multi-behavior recommender systems based on the commonalities and differences in their approaches.<n>We discuss promising future directions for advancing multi-behavior recommender systems.
• Score: 30.22869600008911
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Traditional recommender systems primarily rely on a single type of user-item interaction, such as item purchases or ratings, to predict user preferences. However, in real-world scenarios, users engage in a variety of behaviors, such as clicking on items or adding them to carts, offering richer insights into their interests. Multi-behavior recommender systems leverage these diverse interactions to enhance recommendation quality, and research on this topic has grown rapidly in recent years. This survey provides a timely review of multi-behavior recommender systems, focusing on three key steps: (1) Data Modeling: representing multi-behaviors at the input level, (2) Encoding: transforming these inputs into vector representations (i.e., embeddings), and (3) Training: optimizing machine-learning models. We systematically categorize existing multi-behavior recommender systems based on the commonalities and differences in their approaches across the above steps. Additionally, we discuss promising future directions for advancing multi-behavior recommender systems.

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