SPRINT: Scalable and Predictive Intent Refinement for LLM-Enhanced Session-based Recommendation

Fuente: arXiv
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Auteurs principaux: Lee, Gyuseok, Kweon, Wonbin, Yue, Zhenrui, Liu, Yaokun, Liu, Yifan, Yoon, Susik, Wang, Dong, Kang, SeongKu
Format: Preprint
Publié: 2025
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author Lee, Gyuseok
Kweon, Wonbin
Yue, Zhenrui
Liu, Yaokun
Liu, Yifan
Yoon, Susik
Wang, Dong
Kang, SeongKu
author_facet Lee, Gyuseok
Kweon, Wonbin
Yue, Zhenrui
Liu, Yaokun
Liu, Yifan
Yoon, Susik
Wang, Dong
Kang, SeongKu
contents Large language models (LLMs) have enhanced conventional recommendation models via user profiling, which generates representative textual profiles from users' historical interactions. However, their direct application to session-based recommendation (SBR) remains challenging due to severe session context scarcity and poor scalability. In this paper, we propose SPRINT, a scalable SBR framework that incorporates reliable and informative intents while ensuring high efficiency in both training and inference. SPRINT constrains LLM-based profiling with a global intent pool and validates inferred intents based on recommendation performance to mitigate noise and hallucinations under limited context. To ensure scalability, LLMs are selectively invoked only for uncertain sessions during training, while a lightweight intent predictor generalizes intent prediction to all sessions without LLM dependency at inference time. Experiments on real-world datasets show that SPRINT consistently outperforms state-of-the-art methods while providing more explainable recommendations.
format Preprint
id arxiv_https___arxiv_org_abs_2508_00570
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SPRINT: Scalable and Predictive Intent Refinement for LLM-Enhanced Session-based Recommendation
Lee, Gyuseok
Kweon, Wonbin
Yue, Zhenrui
Liu, Yaokun
Liu, Yifan
Yoon, Susik
Wang, Dong
Kang, SeongKu
Information Retrieval
Large language models (LLMs) have enhanced conventional recommendation models via user profiling, which generates representative textual profiles from users' historical interactions. However, their direct application to session-based recommendation (SBR) remains challenging due to severe session context scarcity and poor scalability. In this paper, we propose SPRINT, a scalable SBR framework that incorporates reliable and informative intents while ensuring high efficiency in both training and inference. SPRINT constrains LLM-based profiling with a global intent pool and validates inferred intents based on recommendation performance to mitigate noise and hallucinations under limited context. To ensure scalability, LLMs are selectively invoked only for uncertain sessions during training, while a lightweight intent predictor generalizes intent prediction to all sessions without LLM dependency at inference time. Experiments on real-world datasets show that SPRINT consistently outperforms state-of-the-art methods while providing more explainable recommendations.
title SPRINT: Scalable and Predictive Intent Refinement for LLM-Enhanced Session-based Recommendation
topic Information Retrieval
url https://arxiv.org/abs/2508.00570