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Recommender systems exploit interaction history to estimate user preference, having been heavily used in a wide range of industry applications. However, static recommendation models are difficult to answer two important questions well due…

Information Retrieval · Computer Science 2021-09-27 Chongming Gao , Wenqiang Lei , Xiangnan He , Maarten de Rijke , Tat-Seng Chua

Conversational Recommender Systems (CRSs)aim to engage users in dialogue to provide tailored recommendations. While traditional CRSs focus on eliciting preferences and retrieving items, real-world e-commerce interactions involve more…

Information Retrieval · Computer Science 2025-08-08 Tongyoung Kim , Jeongeun Lee , Soojin Yoon , Sunghwan Kim , Dongha Lee

Conversational recommendation system (CRS) is emerging as a user-friendly way to capture users' dynamic preferences over candidate items and attributes. Multi-shot CRS is designed to make recommendations multiple times until the user either…

Information Retrieval · Computer Science 2022-07-04 Yinan Zhang , Boyang Li , Yong Liu , You Yuan , Chunyan Miao

Conversational recommender systems (CRS) aim to provide personalized recommendations via interactive dialogues with users. While large language models (LLMs) enhance CRS with their superior understanding of context-aware user preferences,…

Information Retrieval · Computer Science 2025-02-21 Yaochen Zhu , Chao Wan , Harald Steck , Dawen Liang , Yesu Feng , Nathan Kallus , Jundong Li

Modern recommendation systems typically follow two complementary paradigms: collaborative filtering, which models long-term user preferences from historical interactions, and conversational recommendation systems (CRS), which interact with…

Information Retrieval · Computer Science 2025-06-24 Vinaik Chhetri , Yousaf Reza , Moghis Fereidouni , Srijata Maji , Umar Farooq , AB Siddique

Recommender systems (RecSys) are widely used across various modern digital platforms and have garnered significant attention. Traditional recommender systems usually focus only on fixed and simple recommendation scenarios, making it…

Information Retrieval · Computer Science 2026-02-03 Jiani Huang , Shijie Wang , Liang-bo Ning , Wenqi Fan , Shuaiqiang Wang , Dawei Yin , Qing Li

Conversational recommender systems (CRSs) aim to recommend high-quality items to users through a dialogue interface. It usually contains multiple sub-tasks, such as user preference elicitation, recommendation, explanation, and item…

Information Retrieval · Computer Science 2023-08-14 Yue Feng , Shuchang Liu , Zhenghai Xue , Qingpeng Cai , Lantao Hu , Peng Jiang , Kun Gai , Fei Sun

Explanations in conventional recommender systems have demonstrated benefits in helping the user understand the rationality of the recommendations and improving the system's efficiency, transparency, and trustworthiness. In the…

Information Retrieval · Computer Science 2023-05-31 Shuyu Guo , Shuo Zhang , Weiwei Sun , Pengjie Ren , Zhumin Chen , Zhaochun Ren

In recent years, the emerging topics of recommender systems that take advantage of natural language processing techniques have attracted much attention, and one of their applications is the Conversational Recommender System (CRS). Unlike…

Conversational recommender systems (CRS) generate recommendations through an interactive process. However, not all CRS approaches use human conversations as their source of interaction data; the majority of prior CRS work simulates…

Computation and Language · Computer Science 2023-09-15 Chuang Li , Hengchang Hu , Yan Zhang , Min-Yen Kan , Haizhou Li

Conversational recommender systems (CRSs) have revolutionized the conventional recommendation paradigm by embracing dialogue agents to dynamically capture the fine-grained user preference. In a typical conversational recommendation…

Artificial Intelligence · Computer Science 2021-05-12 Xuhui Ren , Hongzhi Yin , Tong Chen , Hao Wang , Zi Huang , Kai Zheng

In Conversational Recommendation Systems (CRS), a user can provide feedback on recommended items at each interaction turn, leading the CRS towards more desirable recommendations. Currently, different types of CRS offer various possibilities…

Information Retrieval · Computer Science 2024-01-12 Maria Vlachou , Craig Macdonald

Conversational Recommendation System (CRS) is a rapidly growing research area that has gained significant attention alongside advancements in language modelling techniques. However, the current state of conversational recommendation faces…

Computation and Language · Computer Science 2023-10-26 Xi Wang , Hossein A. Rahmani , Jiqun Liu , Emine Yilmaz

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…

Computation and Language · Computer Science 2023-06-06 Xiaolei Wang , Kun Zhou , Ji-Rong Wen , Wayne Xin Zhao

Conversational recommender systems (CRSs) are able to elicit user preferences through multi-turn dialogues. They typically incorporate external knowledge and pre-trained language models to capture the dialogue context. Most CRS approaches,…

Information Retrieval · Computer Science 2024-09-18 Xiaoyu Zhang , Ruobing Xie , Yougang Lyu , Xin Xin , Pengjie Ren , Mingfei Liang , Bo Zhang , Zhanhui Kang , Maarten de Rijke , Zhaochun Ren

The advancement of large language models (LLMs) now allows users to actively interact with conversational recommendation systems (CRS) and build their own personalized recommendation services tailored to their unique needs and goals. This…

Human-Computer Interaction · Computer Science 2025-02-25 Sojeong Yun , Youn-kyung Lim

In conversational recommender systems (CRSs), conversations usually involve a set of items and item-related entities or attributes, e.g., director is a related entity of a movie. These items and item-related entities are often mentioned…

Information Retrieval · Computer Science 2024-12-04 Jie Zou , Aixin Sun , Cheng Long , Evangelos Kanoulas

Conversational recommender systems (CRS) aim to recommend high-quality items to users through interactive conversations. Although several efforts have been made for CRS, two major issues still remain to be solved. First, the conversation…

Computation and Language · Computer Science 2020-07-09 Kun Zhou , Wayne Xin Zhao , Shuqing Bian , Yuanhang Zhou , Ji-Rong Wen , Jingsong Yu

With the aid of large language models, current conversational recommender system (CRS) has gaining strong abilities to persuade users to accept recommended items. While these CRSs are highly persuasive, they can mislead users by…

Computation and Language · Computer Science 2024-10-08 Peixin Qin , Chen Huang , Yang Deng , Wenqiang Lei , Tat-Seng Chua

Conversational recommender systems (CRSs) have become crucial emerging research topics in the field of RSs, thanks to their natural advantages of explicitly acquiring user preferences via interactive conversations and revealing the reasons…

Information Retrieval · Computer Science 2023-06-16 Xinghua Qu , Hongyang Liu , Zhu Sun , Xiang Yin , Yew Soon Ong , Lu Lu , Zejun Ma