Item Cluster-aware Prompt Learning for Session-based Recommendation

• URL: http://arxiv.org/abs/2410.04756v1
• Date: Mon, 7 Oct 2024 05:20:21 GMT
• Title: Item Cluster-aware Prompt Learning for Session-based Recommendation
• Authors: Wooseong Yang, Chen Wang, Zihe Song, Weizhi Zhang, Philip S. Yu,
• Abstract summary: Session-based recommendation aims to capture user preferences by analyzing item sequences within individual sessions. Most existing approaches focus mainly on intra-session item relationships, neglecting the connections between items across different sessions. We propose the CLIP-SBR (Cluster-aware Item Prompt learning for Session-Based Recommendation) framework to address these challenges.
• Score: 36.93334485299296
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Session-based recommendation (SBR) aims to capture dynamic user preferences by analyzing item sequences within individual sessions. However, most existing approaches focus mainly on intra-session item relationships, neglecting the connections between items across different sessions (inter-session relationships), which limits their ability to fully capture complex item interactions. While some methods incorporate inter-session information, they often suffer from high computational costs, leading to longer training times and reduced efficiency. To address these challenges, we propose the CLIP-SBR (Cluster-aware Item Prompt learning for Session-Based Recommendation) framework. CLIP-SBR is composed of two modules: 1) an item relationship mining module that builds a global graph to effectively model both intra- and inter-session relationships, and 2) an item cluster-aware prompt learning module that uses soft prompts to integrate these relationships into SBR models efficiently. We evaluate CLIP-SBR across eight SBR models and three benchmark datasets, consistently demonstrating improved recommendation performance and establishing CLIP-SBR as a robust solution for session-based recommendation tasks.

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