LaViC: Adapting Large Vision-Language Models to Visually-Aware Conversational Recommendation

• URL: http://arxiv.org/abs/2503.23312v1
• Date: Sun, 30 Mar 2025 04:44:13 GMT
• Title: LaViC: Adapting Large Vision-Language Models to Visually-Aware Conversational Recommendation
• Authors: Hyunsik Jeon, Satoshi Koide, Yu Wang, Zhankui He, Julian McAuley,
• Abstract summary: LaViC integrates compact image representations into dialogue-based recommendation systems.<n>We construct a new dataset by aligning Reddit conversations with Amazon product listings.<n>LaViC significantly outperforms text-only conversational recommendation methods and open-source vision-language baselines.
• Score: 24.215914514990004
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Conversational recommender systems engage users in dialogues to refine their needs and provide more personalized suggestions. Although textual information suffices for many domains, visually driven categories such as fashion or home decor potentially require detailed visual information related to color, style, or design. To address this challenge, we propose LaViC (Large Vision-Language Conversational Recommendation Framework), a novel approach that integrates compact image representations into dialogue-based recommendation systems. LaViC leverages a large vision-language model in a two-stage process: (1) visual knowledge self-distillation, which condenses product images from hundreds of tokens into a small set of visual tokens in a self-distillation manner, significantly reducing computational overhead, and (2) recommendation prompt tuning, which enables the model to incorporate both dialogue context and distilled visual tokens, providing a unified mechanism for capturing textual and visual features. To support rigorous evaluation of visually-aware conversational recommendation, we construct a new dataset by aligning Reddit conversations with Amazon product listings across multiple visually oriented categories (e.g., fashion, beauty, and home). This dataset covers realistic user queries and product appearances in domains where visual details are crucial. Extensive experiments demonstrate that LaViC significantly outperforms text-only conversational recommendation methods and open-source vision-language baselines. Moreover, LaViC achieves competitive or superior accuracy compared to prominent proprietary baselines (e.g., GPT-3.5-turbo, GPT-4o-mini, and GPT-4o), demonstrating the necessity of explicitly using visual data for capturing product attributes and showing the effectiveness of our vision-language integration. Our code and dataset are available at https://github.com/jeon185/LaViC.

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