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The success of recommender systems in modern online platforms is inseparable from the accurate capture of users' personal tastes. In everyday life, large amounts of user feedback data are created along with user-item online interactions in…

Machine Learning · Computer Science 2019-06-25 Xiao Zhou , Danyang Liu , Jianxun Lian , Xing Xie

Large language models (LLMs) have demonstrated prominent reasoning capabilities in recommendation tasks by transforming them into text-generation tasks. However, existing approaches either disregard or ineffectively model the user-item…

Information Retrieval · Computer Science 2024-11-19 Xinfeng Wang , Jin Cui , Fumiyo Fukumoto , Yoshimi Suzuki

Recent advances have applied large language models (LLMs) to sequential recommendation, leveraging their pre-training knowledge and reasoning capabilities to provide more personalized user experiences. However, existing LLM-based methods…

Computation and Language · Computer Science 2025-08-21 Yutian Liu , Zhengyi Yang , Jiancan Wu , Xiang Wang

Large Language Models (LLMs) exhibit potential for explainable recommendation systems but overlook collaborative signals, while prevailing methods treat recommendation and explanation as separate tasks, resulting in a memory footprint. We…

Artificial Intelligence · Computer Science 2026-02-06 Fahad Anwaar , Adil Mehmood Khan , Muhammad Khalid , Usman Zia , Kezhi Wang

Memory systems often organize user-agent interactions as retrievable external memory and are crucial for long-running agents by overcoming the limited context windows of LLMs. However, existing memory systems invoke LLMs to process every…

Computation and Language · Computer Science 2026-05-18 Zijie Dai , Shiyuan Deng , Sheng Guan , Yizhou Tian , Xin Yao , Xiao Yan , James Cheng

Large Language Models (LLMs) have emerged as promising recommendation systems, offering novel ways to model user preferences through generative approaches. However, many existing methods often rely solely on text semantics or incorporate…

Machine Learning · Computer Science 2026-01-09 Mir Rayat Imtiaz Hossain , Leo Feng , Leonid Sigal , Mohamed Osama Ahmed

We propose AdaRec, a few-shot in-context learning framework that leverages large language models for an adaptive personalized recommendation. AdaRec introduces narrative profiling, transforming user-item interactions into natural language…

Computation and Language · Computer Science 2025-11-11 Meiyun Wang , Charin Polpanumas

Generative models have emerged as a promising utility to enhance recommender systems. It is essential to model both item content and user-item collaborative interactions in a unified generative framework for better recommendation. Although…

Information Retrieval · Computer Science 2024-11-13 Yidan Wang , Zhaochun Ren , Weiwei Sun , Jiyuan Yang , Zhixiang Liang , Xin Chen , Ruobing Xie , Su Yan , Xu Zhang , Pengjie Ren , Zhumin Chen , Xin Xin

Large Language Models (LLMs) have advanced artificial intelligence by enabling human-like text generation and natural language understanding. However, their reliance on static training data limits their ability to respond to dynamic,…

Artificial Intelligence · Computer Science 2026-04-02 Aditi Singh , Abul Ehtesham , Saket Kumar , Tala Talaei Khoei , Athanasios V. Vasilakos

Recent advances in large language models (LLMs) have enabled agent-based recommendation systems with strong semantic understanding and flexible reasoning capabilities. While LLM-based agents deployed in the cloud offer powerful…

Information Retrieval · Computer Science 2025-09-03 Jing Long , Sirui Huang , Huan Huo , Tong Chen , Hongzhi Yin , Guandong Xu

Multi-agent systems must decide which agent is the most appropriate for a given task. We propose a novel architecture for recommending which LLM agent out of many should perform a task given a natural language prompt by extending the…

Machine Learning · Computer Science 2025-01-24 Joshua Park , Yongfeng Zhang

LLM-based conversational AI agents struggle to maintain coherent behavior over long horizons due to limited context. While RAG-based approaches are increasingly adopted to overcome this limitation by storing interactions in external memory…

Artificial Intelligence · Computer Science 2026-05-13 Jiazhou Liang , Armin Toroghi , Yifan Simon Liu , Faeze Moradi Kalarde , Liam Gallagher , Scott Sanner

Recent years have witnessed the rapid development of LLM-based agents, which shed light on using language agents to solve complex real-world problems. A prominent application lies in business agents, which interact with databases and…

Computation and Language · Computer Science 2025-10-30 Yilong Lai , Yipin Yang , Jialong Wu , Fengran Mo , Zhenglin Wang , Ting Liang , Jianguo Lin , Keping Yang

Modeling user-item interaction patterns is an important task for personalized recommendations. Many recommender systems are based on the assumption that there exists a linear relationship between users and items while neglecting the…

Information Retrieval · Computer Science 2018-07-12 Shuai Zhang , Lina Yao , Aixin Sun , Sen Wang , Guodong Long , Manqing Dong

When users are dissatisfied with recommendations from a recommender system, they often lack fine-grained controls for changing them. Large language models (LLMs) offer a solution by allowing users to guide their recommendations through…

Artificial Intelligence · Computer Science 2025-10-15 Micah Carroll , Adeline Foote , Kevin Feng , Marcus Williams , Anca Dragan , W. Bradley Knox , Smitha Milli

Retrieval-Augmented Generation remains the dominant pattern for giving LLMs persistent memory, but a visible cluster of personal wiki-style memory architectures emerged in April 2026 -- design proposals from Karpathy, MemPalace, and LLM…

Artificial Intelligence · Computer Science 2026-04-15 Stefan Miteski

Conversational recommender systems (CRSs) aim to capture user preferences and provide personalized recommendations through multi-round natural language dialogues. However, most existing CRS models mainly focus on dialogue comprehension and…

Information Retrieval · Computer Science 2024-07-09 Yunjia Xi , Weiwen Liu , Jianghao Lin , Bo Chen , Ruiming Tang , Weinan Zhang , Yong Yu

Procedural memory enables large language model (LLM) agents to internalize "how-to" knowledge, theoretically reducing redundant trial-and-error. However, existing frameworks predominantly suffer from a "passive accumulation" paradigm,…

Artificial Intelligence · Computer Science 2026-04-16 Zouying Cao , Jiaji Deng , Li Yu , Weikang Zhou , Zhaoyang Liu , Bolin Ding , Hai Zhao

As large language models (LLMs) evolve into autonomous agents, persistent memory at the API layer is essential for enabling context-aware behavior across LLMs and multi-session interactions. Existing approaches force vendor lock-in and rely…

Machine Learning · Computer Science 2026-03-23 Luiz C. Borro , Luiz A. B. Macarini , Gordon Tindall , Michael Montero , Adam B. Struck

The significant advancements in large language models (LLMs) give rise to a promising research direction, i.e., leveraging LLMs as recommenders (LLMRec). The efficacy of LLMRec arises from the open-world knowledge and reasoning capabilities…

Information Retrieval · Computer Science 2024-07-02 Hangyu Wang , Jianghao Lin , Bo Chen , Yang Yang , Ruiming Tang , Weinan Zhang , Yong Yu