RDRec: Rationale Distillation for LLM-based Recommendation

• URL: http://arxiv.org/abs/2405.10587v3
• Date: Wed, 08 Jan 2025 11:21:12 GMT
• Title: RDRec: Rationale Distillation for LLM-based Recommendation
• Authors: Xinfeng Wang, Jin Cui, Yoshimi Suzuki, Fumiyo Fukumoto,
• Abstract summary: This paper proposes a compact model designed to learn rationales generated by a larger language model (LM)<n>By leveraging rationales from reviews related to users and items, RDRec remarkably specifies their profiles for recommendations.<n> Experiments show that RDRec achieves state-of-the-art (SOTA) performance in both top-N and sequential recommendations.
• Score: 3.7623606729515133
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Large language model (LLM)-based recommender models that bridge users and items through textual prompts for effective semantic reasoning have gained considerable attention. However, few methods consider the underlying rationales behind interactions, such as user preferences and item attributes, limiting the reasoning capability of LLMs for recommendations. This paper proposes a rationale distillation recommender (RDRec), a compact model designed to learn rationales generated by a larger language model (LM). By leveraging rationales from reviews related to users and items, RDRec remarkably specifies their profiles for recommendations. Experiments show that RDRec achieves state-of-the-art (SOTA) performance in both top-N and sequential recommendations. Our source code is released at https://github.com/WangXFng/RDRec.

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