Multi-Agent Collaborative Filtering: Orchestrating Users and Items for Agentic Recommendations

Fuente: arXiv
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Main Authors: Xia, Yu, Kim, Sungchul, Yu, Tong, Rossi, Ryan A., McAuley, Julian
Format: Preprint
Published: 2025
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author Xia, Yu
Kim, Sungchul
Yu, Tong
Rossi, Ryan A.
McAuley, Julian
author_facet Xia, Yu
Kim, Sungchul
Yu, Tong
Rossi, Ryan A.
McAuley, Julian
contents Agentic recommendations cast recommenders as large language model (LLM) agents that can plan, reason, use tools, and interact with users of varying preferences in web applications. However, most existing agentic recommender systems focus on generic single-agent plan-execute workflows or multi-agent task decomposition pipelines. Without recommendation-oriented design, they often underuse the collaborative signals in the user-item interaction history, leading to unsatisfying recommendation results. To address this, we propose the Multi-Agent Collaborative Filtering (MACF) framework for agentic recommendations, drawing an analogy between traditional collaborative filtering algorithms and LLM-based multi-agent collaboration. Specifically, given a target user and query, we instantiate similar users and relevant items as LLM agents with unique profiles. Each agent is able to call retrieval tools, suggest candidate items, and interact with other agents. Different from the static preference aggregation in traditional collaborative filtering, MACF employs a central orchestrator agent to adaptively manage the collaboration between user and item agents via dynamic agent recruitment and personalized collaboration instruction. Experimental results on datasets from three different domains show the advantages of our MACF framework compared to strong agentic recommendation baselines.
format Preprint
id arxiv_https___arxiv_org_abs_2511_18413
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multi-Agent Collaborative Filtering: Orchestrating Users and Items for Agentic Recommendations
Xia, Yu
Kim, Sungchul
Yu, Tong
Rossi, Ryan A.
McAuley, Julian
Computation and Language
Information Retrieval
Agentic recommendations cast recommenders as large language model (LLM) agents that can plan, reason, use tools, and interact with users of varying preferences in web applications. However, most existing agentic recommender systems focus on generic single-agent plan-execute workflows or multi-agent task decomposition pipelines. Without recommendation-oriented design, they often underuse the collaborative signals in the user-item interaction history, leading to unsatisfying recommendation results. To address this, we propose the Multi-Agent Collaborative Filtering (MACF) framework for agentic recommendations, drawing an analogy between traditional collaborative filtering algorithms and LLM-based multi-agent collaboration. Specifically, given a target user and query, we instantiate similar users and relevant items as LLM agents with unique profiles. Each agent is able to call retrieval tools, suggest candidate items, and interact with other agents. Different from the static preference aggregation in traditional collaborative filtering, MACF employs a central orchestrator agent to adaptively manage the collaboration between user and item agents via dynamic agent recruitment and personalized collaboration instruction. Experimental results on datasets from three different domains show the advantages of our MACF framework compared to strong agentic recommendation baselines.
title Multi-Agent Collaborative Filtering: Orchestrating Users and Items for Agentic Recommendations
topic Computation and Language
Information Retrieval
url https://arxiv.org/abs/2511.18413