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Related papers: Generative Reasoning Recommendation via LLMs

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Traditional recommender systems such as matrix factorization methods have primarily focused on learning a shared dense embedding space to represent both items and user preferences. Subsequently, sequence models such as RNN, GRUs, and,…

Information Retrieval · Computer Science 2024-08-27 Yaoyiran Li , Xiang Zhai , Moustafa Alzantot , Keyi Yu , Ivan Vulić , Anna Korhonen , Mohamed Hammad

Reward models (RMs) play a critical role in enhancing the reasoning performance of LLMs. For example, they can provide training signals to finetune LLMs during reinforcement learning (RL) and help select the best answer from multiple…

Computation and Language · Computer Science 2025-10-06 Qiyuan Liu , Hao Xu , Xuhong Chen , Wei Chen , Yee Whye Teh , Ning Miao

Personalized recommendation requires models that capture sequential user preferences while remaining robust to sparse feedback and semantic ambiguity. Recent work has explored large language models (LLMs) as recommenders and re-rankers, but…

Information Retrieval · Computer Science 2026-04-22 Siqi Liang , Xiawei Wang , Yudi Zhang , Jiaying Zhou

Large language models (LLMs) exhibit strong semantic understanding, yet struggle when user instructions involve ambiguous or conceptually misaligned terms. We propose the Language Graph Model (LGM) to enhance conceptual clarity by…

Computation and Language · Computer Science 2025-11-06 Wenchang Lei , Ping Zou , Yue Wang , Feng Sun , Lei Zhao

This paper presents ReasoningRec, a reasoning-based recommendation framework that leverages Large Language Models (LLMs) to bridge the gap between recommendations and human-interpretable explanations. In contrast to conventional…

Information Retrieval · Computer Science 2024-10-31 Millennium Bismay , Xiangjue Dong , James Caverlee

With the rapid development of Large Language Models (LLMs), various explorations have arisen to utilize LLMs capability of context understanding on recommender systems. While pioneering strategies have primarily transformed traditional…

Information Retrieval · Computer Science 2024-02-27 Naicheng Guo , Hongwei Cheng , Qianqiao Liang , Linxun Chen , Bing Han

A Conversational Recommender System (CRS) offers increased transparency and control to users by enabling them to engage with the system through a real-time multi-turn dialogue. Recently, Large Language Models (LLMs) have exhibited an…

The problem of data sparsity has long been a challenge in recommendation systems, and previous studies have attempted to address this issue by incorporating side information. However, this approach often introduces side effects such as…

Information Retrieval · Computer Science 2024-01-09 Wei Wei , Xubin Ren , Jiabin Tang , Qinyong Wang , Lixin Su , Suqi Cheng , Junfeng Wang , Dawei Yin , Chao Huang

Large Language Models (LLMs) exhibit impressive capabilities but require careful alignment with human preferences. Traditional training-time methods finetune LLMs using human preference datasets but incur significant training costs and…

Computation and Language · Computer Science 2025-07-16 Yuancheng Xu , Udari Madhushani Sehwag , Alec Koppel , Sicheng Zhu , Bang An , Furong Huang , Sumitra Ganesh

In contrast to single-user recommender systems, group recommender systems are designed to generate and explain recommendations for groups. This group-oriented setting introduces additional complexities, as several factors - absent in…

Recent advancements in large language models (LLMs) have catalyzed the rise of reasoning-intensive inference paradigms, where models perform explicit step-by-step reasoning before generating final answers. While such approaches improve…

Artificial Intelligence · Computer Science 2026-04-28 Zichuan Fu , Xian Wu , Guojing Li , Yejing Wang , Yijun Chen , Zihao Zhao , Yixuan Luo , Hanyu Yan , Yefeng Zheng , Xiangyu Zhao

User simulation is increasingly vital to develop and evaluate recommender systems (RSs). While Large Language Models (LLMs) offer promising avenues to simulate user behavior, they often struggle with the absence of specific task alignment…

Human-Computer Interaction · Computer Science 2026-04-20 Tianjun Wei , Huizhong Guo , Yingpeng Du , Zhu Sun , Huang Chen , Dongxia Wang , Jie Zhang

Sequential recommendation aims to predict users' future interactions by modeling collaborative filtering (CF) signals from historical behaviors of similar users or items. Traditional sequential recommenders predominantly rely on ID-based…

Information Retrieval · Computer Science 2025-06-30 Yingzhi He , Xiaohao Liu , An Zhang , Yunshan Ma , Tat-Seng Chua

Recent advancements in Large Language Models (LLMs) have shown that it is promising to utilize Process Reward Models (PRMs) as verifiers to enhance the performance of LLMs. However, current PRMs face three key challenges: (1) limited…

Computation and Language · Computer Science 2025-04-08 Jian Zhao , Runze Liu , Kaiyan Zhang , Zhimu Zhou , Junqi Gao , Dong Li , Jiafei Lyu , Zhouyi Qian , Biqing Qi , Xiu Li , Bowen Zhou

Generating user-friendly explanations regarding why an item is recommended has become increasingly common, largely due to advances in language generation technology, which can enhance user trust and facilitate more informed decision-making…

Information Retrieval · Computer Science 2024-01-04 Yucong Luo , Mingyue Cheng , Hao Zhang , Junyu Lu , Qi Liu , Enhong Chen

The Retrieval-Augmented Language Model (RALM) has shown remarkable performance on knowledge-intensive tasks by incorporating external knowledge during inference, which mitigates the factual hallucinations inherited in large language models…

Computation and Language · Computer Science 2024-12-20 Yuan Xia , Jingbo Zhou , Zhenhui Shi , Jun Chen , Haifeng Huang

Large Language Models (LLMs) have demonstrated impressive reasoning capabilities in complex problem-solving tasks, sparking growing interest in their application to preference reasoning in recommendation systems. Existing methods typically…

Artificial Intelligence · Computer Science 2025-10-27 Yang Zhang , Wenxin Xu , Xiaoyan Zhao , Wenjie Wang , Fuli Feng , Xiangnan He , Tat-Seng Chua

Benefiting from the strong reasoning capabilities, Large language models (LLMs) have demonstrated remarkable performance in recommender systems. Various efforts have been made to distill knowledge from LLMs to enhance collaborative models,…

Information Retrieval · Computer Science 2024-12-24 Xihong Yang , Heming Jing , Zixing Zhang , Jindong Wang , Huakang Niu , Shuaiqiang Wang , Yu Lu , Junfeng Wang , Dawei Yin , Xinwang Liu , En Zhu , Defu Lian , Erxue Min

Model merging (MM) offers an efficient mechanism for integrating multiple specialized models without access to original training data or costly retraining. While MM has demonstrated success in domains like computer vision, its role in…

Information Retrieval · Computer Science 2026-01-30 Tianjun Wei , Enneng Yang , Yingpeng Du , Huizhong Guo , Jie Zhang , Zhu Sun

Sequential Recommendation (SR) task involves predicting the next item a user is likely to interact with, given their past interactions. The SR models examine the sequence of a user's actions to discern more complex behavioral patterns and…

Information Retrieval · Computer Science 2025-04-22 Wujiang Xu , Qitian Wu , Zujie Liang , Jiaojiao Han , Xuying Ning , Yunxiao Shi , Wenfang Lin , Yongfeng Zhang