ResearchResearch paperRetrieval, RAG & Search1 source · Oct 8, 2026

Personalization Matters: Long-Horizon Conversation Agent with User-Centric Information in Online Shopping Interactions

We propose a multi-agent, multimodal Retrieval-Augmented Generation (RAG) framework that decomposes dialogue state tracking, recommendation retrieval, preference-aware reasoning, and response generation, while integrating product metadata, product reviews, image-derived descriptions, and user historical reviews.

Key points

  • Personalized conversational shopping requires maintaining preference consistency over multi-turn interactions, where users reveal constraints gradually.
  • Existing approaches often rely on static profiles and do not explicitly control long-horizon interaction behavior.
  • To evaluate interaction-level quality, we adopt a trajectory-level protocol with four dimensions: Global Preference Consistency, Cumulative Information Synthesis, Interaction Trajectory, and Tone Consistency.
  • On an Amazon Reviews 2023 benchmark, retrieval-enabled variants outperform a no-RAG baseline on automatic trajectory metrics (average 4.82 vs. 3.74).

Sources (1)

  • [1]Personalization Matters: Long-Horizon Conversation Agent with User-Centric Information in Online Shopping Interactions
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 8, 07:07 AM
    We propose a multi-agent, multimodal Retrieval-Augmented Generation (RAG) framework that decomposes dialogue state tracking, recommendation retrieval, preference-aware reasoning, and response generation, while integrating product metadata, product reviews, image-derived descriptions, and user historical reviews.
    Personalized conversational shopping requires maintaining preference consistency over multi-turn interactions, where users reveal constraints gradually.

Extractive summary: sentences quoted from the sources.

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