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Reasoning in Large Language Models (LLMs) has recently shown strong potential in enhancing generative recommendation through deep understanding of complex user preference. Existing approaches follow a {reason-then-recommend} paradigm, where…

Information Retrieval · Computer Science 2026-03-10 Xinyu Lin , Hanqing Zeng , Hanchao Yu , Yinglong Xia , Jiang Zhang , Aashu Singh , Fei Liu , Wenjie Wang , Fuli Feng , Tat-Seng Chua , Qifan Wang

Generative retrieval (GR) models encode a corpus within model parameters and generate relevant document identifiers directly for a given query. While this paradigm shows promise in retrieval tasks, existing GR models struggle with complex…

Information Retrieval · Computer Science 2026-03-16 Steven Dong , Yubao Tang , Maarten de Rijke

Retrieval-Augmented Generation (RAG) has been shown to enhance the factual accuracy of Large Language Models (LLMs), but existing methods often suffer from limited reasoning capabilities in effectively using the retrieved evidence,…

Computation and Language · Computer Science 2024-10-03 Shayekh Bin Islam , Md Asib Rahman , K S M Tozammel Hossain , Enamul Hoque , Shafiq Joty , Md Rizwan Parvez

Retrieval augmented generation (RAG) combines the generative abilities of large language models (LLMs) with external knowledge sources to provide more accurate and up-to-date responses. Recent RAG advancements focus on improving retrieval…

Recommender systems play a vital role in alleviating information overload and enriching users' online experience. In the era of large language models (LLMs), LLM-based recommender systems have emerged as a prevalent paradigm for advancing…

Information Retrieval · Computer Science 2025-11-19 Zihuai Zhao , Yujuan Ding , Wenqi Fan , Qing Li

Recent breakthroughs in large language models (LLMs) have fundamentally shifted recommender systems from discriminative to generative paradigms, where user behavior modeling is achieved by generating target items conditioned on historical…

Information Retrieval · Computer Science 2025-10-15 Junfei Tan , Yuxin Chen , An Zhang , Junguang Jiang , Bin Liu , Ziru Xu , Han Zhu , Jian Xu , Bo Zheng , Xiang Wang

Group relative policy optimization (GRPO) has become a standard post-training paradigm for improving reasoning and preference alignment in large language models (LLMs), and has recently shown strong effectiveness in LLM-based recommender…

Information Retrieval · Computer Science 2026-03-09 Yu Wang , Yonghui Yang , Le Wu , Jiancan Wu , Hefei Xu , Hui Lin

Modern recommender systems must adapt to dynamic, need-specific objectives for diverse recommendation scenarios, yet most traditional recommenders are optimized for a single static target and struggle to reconfigure behavior on demand.…

Machine Learning · Computer Science 2026-03-13 Yijun Pan , Weikang Qiu , Qiyao Ma , Mingxuan Ju , Tong Zhao , Neil Shah , Rex Ying

Sequential recommendation plays a critical role in modern online platforms such as e-commerce, advertising, and content streaming, where accurately predicting users' next interactions is essential for personalization. Recent…

Information Retrieval · Computer Science 2026-03-04 Haofeng Huang , Ling Gai

Recommendation systems have been essential for both user experience and platform efficiency by alleviating information overload and supporting decision-making. Traditional methods, i.e., content-based filtering, collaborative filtering, and…

Information Retrieval · Computer Science 2025-08-22 Lining Chen , Qingwen Zeng , Huaming Chen

Test-time scaling has emerged as an effective way to improve language models on challenging reasoning tasks. However, most existing methods treat each problem in isolation and do not systematically reuse knowledge from prior reasoning…

Computation and Language · Computer Science 2026-04-21 Di Wu , Devendra Singh Sachan , Wen-tau Yih , Mingda Chen

Agentic Retrieval-Augmented Generation (Agentic RAG) enhances the processing capability for complex tasks through dynamic retrieval and adaptive workflows. Recent advances (e.g., Search-R1) have shown that outcome-supervised reinforcement…

Computation and Language · Computer Science 2025-10-08 Yongqi Leng , Yikun Lei , Xikai Liu , Meizhi Zhong , Bojian Xiong , Yurong Zhang , Yan Gao , Yi Wu , Yao Hu , Deyi Xiong

Retrieval-Augmented Generation (RAG) has become a robust framework for enhancing Large Language Models (LLMs) with external knowledge. Recent advances in RAG have investigated graph based retrieval for intricate reasoning; however, the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Tejas Sarnaik , Manan Shah , Ravi Hegde

Recent advances in Large Language Models (LLMs) have significantly improved complex reasoning capabilities. Retrieval-Augmented Generation (RAG) has further extended these capabilities by grounding generation in dynamically retrieved…

Computation and Language · Computer Science 2026-02-23 Jash Rajesh Parekh , Pengcheng Jiang , Jiawei Han

Large Language Models (LLMs) have demonstrated a remarkable capacity in understanding user preferences for recommendation systems. However, they are constrained by several critical challenges, including their inherent "Black-Box"…

Artificial Intelligence · Computer Science 2026-01-01 Jiaxin Hu , Tao Wang , Bingsan Yang , Hongrun Wang

Retrieval-Augmented Generation (RAG) integrates external knowledge with Large Language Models (LLMs) to enhance factual correctness and mitigate hallucination. However, dense retrievers often become the bottleneck of RAG systems due to…

Computation and Language · Computer Science 2025-10-27 Yuan Li , Qi Luo , Xiaonan Li , Bufan Li , Qinyuan Cheng , Bo Wang , Yining Zheng , Yuxin Wang , Zhangyue Yin , Xipeng Qiu

Large language models (LLMs) have demonstrated remarkable advances in reasoning capabilities. However, their performance remains constrained by limited access to explicit and structured domain knowledge. Retrieval-Augmented Generation (RAG)…

Computation and Language · Computer Science 2025-10-20 Junlin Wu , Xianrui Zhong , Jiashuo Sun , Bolian Li , Bowen Jin , Jiawei Han , Qingkai Zeng

Personalized content marketing has become a crucial strategy for digital platforms, aiming to deliver tailored advertisements and recommendations that match user preferences. Traditional recommendation systems often suffer from two…

Information Retrieval · Computer Science 2025-09-23 Ruihan Luo , Xuanjing Chen , Ziyang Ding

Iterative retrieval refers to the process in which the model continuously queries the retriever during generation to enhance the relevance of the retrieved knowledge, thereby improving the performance of Retrieval-Augmented Generation…

Computation and Language · Computer Science 2024-12-02 Tian Yu , Shaolei Zhang , Yang Feng

Conventional recommendation methods have achieved notable advancements by harnessing collaborative or sequential information from user behavior. Recently, large language models (LLMs) have gained prominence for their capabilities in…

Information Retrieval · Computer Science 2026-01-21 Sichun Luo , Yuxuan Yao , Bowei He , Wei Shao , Jian Xu , Yinya Huang , Aojun Zhou , Xinyi Zhang , Yuanzhang Xiao , Hanxu Hou , Mingjie Zhan , Linqi Song