Harmonizing Large Language Models with Collaborative Behavioral Signals for Conversational Recommendation

Fuente: arXiv
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Main Authors: Li, Guanrong, Tian, Kuo, Qi, Jinnan, Fu, Qinghan, Wu, Zhen, Dai, Xinyu
Format: Preprint
Published: 2025
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author Li, Guanrong
Tian, Kuo
Qi, Jinnan
Fu, Qinghan
Wu, Zhen
Dai, Xinyu
author_facet Li, Guanrong
Tian, Kuo
Qi, Jinnan
Fu, Qinghan
Wu, Zhen
Dai, Xinyu
contents Conversational recommendation frameworks have gained prominence as a dynamic paradigm for delivering personalized suggestions via interactive dialogues. The incorporation of advanced language understanding techniques has substantially improved the dialogue fluency of such systems. However, while modern language models demonstrate strong proficiency in interpreting user preferences articulated through natural conversation, they frequently encounter challenges in effectively utilizing collective behavioral patterns - a crucial element for generating relevant suggestions. To mitigate this limitation, this work presents a novel probabilistic framework that synergizes behavioral patterns with conversational interactions through latent preference modeling. The proposed method establishes a dual-channel alignment mechanism where implicit preference representations learned from collective user interactions serve as a connecting mechanism between behavioral data and linguistic expressions. Specifically, the framework first derives latent preference representations through established collaborative filtering techniques, then employs these representations to jointly refine both the linguistic preference expressions and behavioral patterns through an adaptive fusion process. Comprehensive evaluations across multiple benchmark datasets demonstrate the superior performance of the proposed approach compared to various state-of-the-art baseline methods, particularly in aligning conversational interactions with collaborative behavioral signals.
format Preprint
id arxiv_https___arxiv_org_abs_2503_10703
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Harmonizing Large Language Models with Collaborative Behavioral Signals for Conversational Recommendation
Li, Guanrong
Tian, Kuo
Qi, Jinnan
Fu, Qinghan
Wu, Zhen
Dai, Xinyu
Computation and Language
Information Retrieval
Conversational recommendation frameworks have gained prominence as a dynamic paradigm for delivering personalized suggestions via interactive dialogues. The incorporation of advanced language understanding techniques has substantially improved the dialogue fluency of such systems. However, while modern language models demonstrate strong proficiency in interpreting user preferences articulated through natural conversation, they frequently encounter challenges in effectively utilizing collective behavioral patterns - a crucial element for generating relevant suggestions. To mitigate this limitation, this work presents a novel probabilistic framework that synergizes behavioral patterns with conversational interactions through latent preference modeling. The proposed method establishes a dual-channel alignment mechanism where implicit preference representations learned from collective user interactions serve as a connecting mechanism between behavioral data and linguistic expressions. Specifically, the framework first derives latent preference representations through established collaborative filtering techniques, then employs these representations to jointly refine both the linguistic preference expressions and behavioral patterns through an adaptive fusion process. Comprehensive evaluations across multiple benchmark datasets demonstrate the superior performance of the proposed approach compared to various state-of-the-art baseline methods, particularly in aligning conversational interactions with collaborative behavioral signals.
title Harmonizing Large Language Models with Collaborative Behavioral Signals for Conversational Recommendation
topic Computation and Language
Information Retrieval
url https://arxiv.org/abs/2503.10703