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Recently, Large Language Models (LLMs) have been widely employed in Conversational Recommender Systems (CRSs). Unlike traditional language model approaches that focus on training, all existing LLMs-based approaches are mainly centered…

计算与语言 · 计算机科学 2025-09-26 Jianyu Wen , Jingyun Wang , Cilin Yan , Jiayin Cai , Xiaolong Jiang , Ying Zhang

Recently, there has been an emergence of employing LLM-powered agents as believable human proxies, based on their remarkable decision-making capability. However, existing studies mainly focus on simulating human dialogue. Human non-verbal…

信息检索 · 计算机科学 2023-10-16 Junjie Zhang , Yupeng Hou , Ruobing Xie , Wenqi Sun , Julian McAuley , Wayne Xin Zhao , Leyu Lin , Ji-Rong Wen

Large language models (LLMs) have demonstrated their significant potential to be applied for addressing various application tasks. However, traditional recommender systems continue to face great challenges such as poor interactivity and…

信息检索 · 计算机科学 2023-04-05 Yunfan Gao , Tao Sheng , Youlin Xiang , Yun Xiong , Haofen Wang , Jiawei Zhang

Conversational Recommender Systems (CRSs) have attracted growing attention for their ability to deliver personalized recommendations through natural language interactions. To more accurately infer user preferences from multi-turn…

信息检索 · 计算机科学 2026-01-21 Wei Yuan , Shutong Qiao , Tong Chen , Quoc Viet Hung Nguyen , Zi Huang , Hongzhi Yin

Conversational recommender systems (CRS) enhance user experience through multi-turn interactions, yet evaluating CRS remains challenging. User simulators can provide comprehensive evaluations through interactions with CRS, but building…

人机交互 · 计算机科学 2025-08-01 Luyu Chen , Quanyu Dai , Zeyu Zhang , Xueyang Feng , Mingyu Zhang , Pengcheng Tang , Xu Chen , Yue Zhu , Zhenhua Dong

Recommendation systems are ubiquitous, from Spotify playlist suggestions to Amazon product suggestions. Nevertheless, depending on the methodology or the dataset, these systems typically fail to capture user preferences and generate general…

Cross-domain Sequential Recommendation (CDSR) aims to extract the preference from the user's historical interactions across various domains. Despite some progress in CDSR, two problems set the barrier for further advancements, i.e., overlap…

信息检索 · 计算机科学 2025-04-28 Qidong Liu , Xiangyu Zhao , Yejing Wang , Zijian Zhang , Howard Zhong , Chong Chen , Xiang Li , Wei Huang , Feng Tian

Recommendation systems focus on helping users find items of interest in the situations of information overload, where users' preferences are typically estimated by the past observed behaviors. In contrast, conversational recommendation…

计算与语言 · 计算机科学 2022-03-29 Ting-Chun Wang , Shang-Yu Su , Yun-Nung Chen

Every day, a significant number of users visit the internet for different needs. The owners of a website generate profits from the user interaction with the contents or items of the website. A robust recommendation system can increase user…

信息检索 · 计算机科学 2025-12-18 Abdullah Al Munem , Sumona Yeasmin , Mohammad Rezwanul Huq

Owing to the impressive general intelligence of large language models (LLMs), there has been a growing trend to integrate them into recommender systems to gain a more profound insight into human interests and intentions. Existing LLMs-based…

信息检索 · 计算机科学 2024-10-29 Chuang Zhao , Xing Su , Ming He , Hongke Zhao , Jianping Fan , Xiaomeng Li

Leveraging Large Language Models as Recommenders (LLMRec) has gained significant attention and introduced fresh perspectives in user preference modeling. Existing LLMRec approaches prioritize text semantics, usually neglecting the valuable…

信息检索 · 计算机科学 2025-06-17 Yang Zhang , Fuli Feng , Jizhi Zhang , Keqin Bao , Qifan Wang , Xiangnan He

Conversational Recommender Systems (CRSs) leverage natural language interactions for personalized recommendation, yet information-scarce dialogue histories and single-turn recommendation paradigms may severely hinder accurate modeling of…

信息检索 · 计算机科学 2026-04-07 Xingyuan Xiang , Xiangchen Pan , Wei Wei

Current LLM-based conversational recommender systems (CRS) primarily optimize recommendation accuracy and user satisfaction. We identify an underexplored vulnerability in which recommendation outputs may negatively impact users by violating…

计算与语言 · 计算机科学 2026-03-05 Haochang Hao , Yifan Xu , Xinzhuo Li , Yingqiang Ge , Lu Cheng

Sequential Recommendation Systems (SRS) have become essential in many real-world applications. However, existing SRS methods often rely on collaborative filtering signals and fail to capture real-time user preferences, while Conversational…

信息检索 · 计算机科学 2025-09-12 Yifan Wang , Shen Gao , Jiabao Fang , Rui Yan , Billy Chiu , Shuo Shang

The traditional recommendation systems mainly use offline user data to train offline models, and then recommend items for online users, thus suffering from the unreliable estimation of user preferences based on sparse and noisy historical…

信息检索 · 计算机科学 2021-10-14 Mengyuan Zhao , Xiaowen Huang , Lixi Zhu , Jitao Sang , Jian Yu

Conversational recommender systems (CRS) aim to proactively elicit user preference and recommend high-quality items through natural language conversations. Typically, a CRS consists of a recommendation module to predict preferred items for…

计算与语言 · 计算机科学 2023-06-06 Xiaolei Wang , Kun Zhou , Ji-Rong Wen , Wayne Xin Zhao

Cross-Domain Recommendation (CDR) seeks to enhance item retrieval in low-resource domains by transferring knowledge from high-resource domains. While recent advancements in Large Language Models (LLMs) have demonstrated their potential in…

信息检索 · 计算机科学 2025-03-12 Xinyi Liu , Ruijie Wang , Dachun Sun , Dilek Hakkani-Tur , Tarek Abdelzaher

Large language model (LLM)-based recommender models that bridge users and items through textual prompts for effective semantic reasoning have gained considerable attention. However, few methods consider the underlying rationales behind…

计算与语言 · 计算机科学 2025-01-09 Xinfeng Wang , Jin Cui , Yoshimi Suzuki , Fumiyo Fukumoto

Conversational Recommender Systems (CRS) engage users in interactive dialogues to gather preferences and provide personalized recommendations. While existing studies have advanced conversational strategies, they often rely on predefined…

信息检索 · 计算机科学 2025-04-16 Haibo Sun , Naoki Otani , Hannah Kim , Dan Zhang , Nikita Bhutani

Recommender systems (RSs) play a central role in connecting users to content, products, and services, matching candidate items to users based on their preferences. While traditional RSs rely on implicit user feedback signals, conversational…