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Recently, large language models (LLMs) have shown great potential in recommender systems, either improving existing recommendation models or serving as the backbone. However, there exists a large semantic gap between LLMs and recommender…

Information Retrieval · Computer Science 2024-04-22 Bowen Zheng , Yupeng Hou , Hongyu Lu , Yu Chen , Wayne Xin Zhao , Ming Chen , Ji-Rong Wen

Current recommendation systems often require some form of textual data summarization, such as generating concise and coherent titles for product carousels or other grouped item displays. While large language models have shown promise in NLP…

Information Retrieval · Computer Science 2025-07-02 Jiao Chen , Kehui Yao , Reza Yousefi Maragheh , Kai Zhao , Jianpeng Xu , Jason Cho , Evren Korpeoglu , Sushant Kumar , Kannan Achan

We introduce a novel large language model (LLM)-driven agent framework, which iteratively refines queries and filters contextual evidence by leveraging dynamically evolving knowledge. A defining feature of the system is its decoupling of…

Artificial Intelligence · Computer Science 2025-04-02 Seyoung Song

The rapid advancement of neural language models has sparked a new surge of intelligent agent research. Unlike traditional agents, large language model-based agents (LLM agents) have emerged as a promising paradigm for achieving artificial…

Artificial Intelligence · Computer Science 2024-12-17 Cong Zhang , Derrick Goh Xin Deik , Dexun Li , Hao Zhang , Yong Liu

Recommender Systems (RSs) have become the cornerstone of various applications such as e-commerce and social media platforms. The evolution of RSs is paramount in the digital era, in which personalised user experience is tailored to the…

Information Retrieval · Computer Science 2025-12-09 Tendai Mukande , Esraa Ali , Annalina Caputo , Ruihai Dong , Noel OConnor

Adapting large language models (LLMs) for personalized recommendation requires aligning their general-purpose capabilities with user-specific preferences while effectively leveraging both behavioral and semantic signals. Existing approaches…

Information Retrieval · Computer Science 2026-05-27 Pingjun Pan , Tingting Zhou , Peiyao Lu , Tingting Fei , Hongxiang Chen , Chuanjiang Luo

Large Language Models (LLMs) like GPT-4 have revolutionized natural language processing, showing remarkable linguistic proficiency and reasoning capabilities. However, their application in strategic multi-agent decision-making environments…

Computation and Language · Computer Science 2024-05-29 Chuanhao Li , Runhan Yang , Tiankai Li , Milad Bafarassat , Kourosh Sharifi , Dirk Bergemann , Zhuoran Yang

Large Language Model (LLM) based multi-agent systems (MAS) show remarkable potential in collaborative problem-solving, yet they still face critical challenges: low communication efficiency, poor scalability, and a lack of effective…

Computation and Language · Computer Science 2025-02-19 Weize Chen , Jiarui Yuan , Chen Qian , Cheng Yang , Zhiyuan Liu , Maosong Sun

Multimodal Retrieval-Augmented Generation (mRAG) has emerged as a promising solution to address the temporal limitations of Multimodal Large Language Models (MLLMs) in real-world scenarios like news analysis and trending topics. However,…

Artificial Intelligence · Computer Science 2025-08-13 Yuechen Wang , Yuming Qiao , Dan Meng , Jun Yang , Haonan Lu , Zhenyu Yang , Xudong Zhang

Complementary product recommendation, which aims to suggest items that are used together to enhance customer value, is a crucial yet challenging task in e-commerce. While existing graph neural network (GNN) approaches have made significant…

Information Retrieval · Computer Science 2025-12-02 Zekun Xu , Yudi Zhang

Conventional recommender systems (RSs) face challenges in precisely capturing users' fine-grained preferences. Large language models (LLMs) have shown capabilities in commonsense reasoning and leveraging external tools that may help address…

Information Retrieval · Computer Science 2024-05-27 Yuyue Zhao , Jiancan Wu , Xiang Wang , Wei Tang , Dingxian Wang , Maarten de Rijke

Optimizing multiple objectives simultaneously is an important task for recommendation platforms to improve their performance. However, this task is particularly challenging since the relationships between different objectives are…

Information Retrieval · Computer Science 2026-02-13 Pan Li , Alexander Tuzhilin

Large language models (LLMs) have demonstrated remarkable potential in transforming recommender systems from implicit behavioral pattern matching to explicit intent reasoning. While RecGPT-V1 successfully pioneered this paradigm by…

Large language model (LLM)-based multi-agent systems have demonstrated remarkable promise for tackling complex tasks by breaking them down into subtasks that are iteratively planned, executed, observed, and refined. Despite their…

Multiagent Systems · Computer Science 2025-07-15 Enhao Zhang , Erkang Zhu , Gagan Bansal , Adam Fourney , Hussein Mozannar , Jack Gerrits

The advancement of LLMs and their accessibility have triggered renewed interest in multi-agent reinforcement learning as robust and adaptive frameworks for dynamically changing environments. This paper introduces RL-Focal, a two-stage RL…

Computation and Language · Computer Science 2025-10-14 Selim Furkan Tekin , Fatih Ilhan , Gaowen Liu , Ramana Rao Kompella , Ling Liu

This paper presents a novel approach for unified retrieval-augmented generation (RAG) systems using the recent emerging large language model (LLM) agent concept. Specifically, Agent LLM, which utilizes LLM as fundamental controllers, has…

Computation and Language · Computer Science 2025-06-02 Hoang Pham , Thuy-Duong Nguyen , Khac-Hoai Nam Bui

The integration of reinforcement learning (RL) into large language models (LLMs) has opened new opportunities for recommender systems by eliciting reasoning and improving user preference modeling. However, RL-based LLM recommendation faces…

Information Retrieval · Computer Science 2026-02-05 Lin Wang , Yang Zhang , Jingfan Chen , Xiaoyan Zhao , Fengbin Zhu , Qing Li , Tat-Seng Chua

Misinformation spans various domains, but detection methods trained on specific domains often perform poorly when applied to others. With the rapid development of Large Language Models (LLMs), researchers have begun to utilize LLMs for…

Artificial Intelligence · Computer Science 2025-09-24 Hui Li , Ante Wang , kunquan li , Zhihao Wang , Liang Zhang , Delai Qiu , Qingsong Liu , Jinsong Su

Significant progress has been made in automated problem-solving using societies of agents powered by large language models (LLMs). In finance, efforts have largely focused on single-agent systems handling specific tasks or multi-agent…

Trading and Market Microstructure · Quantitative Finance 2025-06-04 Yijia Xiao , Edward Sun , Di Luo , Wei Wang

Identifying and articulating limitations is essential for transparent and rigorous scientific research. However, zero-shot large language models (LLMs) approach often produce superficial or general limitation statements (e.g., dataset bias…

Computation and Language · Computer Science 2026-03-17 Ibrahim Al Azher , Zhishuai Guo , Hamed Alhoori