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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…

Proactively and naturally guiding the dialog from the non-recommendation context (e.g., Chit-chat) to the recommendation scenario (e.g., Music) is crucial for the Conversational Recommender System (CRS). Prior studies mainly focus on…

Information Retrieval · Computer Science 2024-01-02 Can Chen , Hao Liu , Zeming Liu , Xue Liu , Dejing Dou

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

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 (CRSs) are designed to suggest the target item that the user is likely to prefer through multi-turn conversations. Recent studies stress that capturing sentiments in user conversations improves…

Information Retrieval · Computer Science 2025-07-30 Heejin Kook , Junyoung Kim , Seongmin Park , Jongwuk Lee

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

Conversational recommendation systems (CRS) could acquire dynamic user preferences towards desired items through multi-round interactive dialogue. Previous CRS mainly focuses on the single conversation (subsession) that user quits after a…

Information Retrieval · Computer Science 2023-10-23 Yu Ji , Qi Shen , Shixuan Zhu , Hang Yu , Yiming Zhang , Chuan Cui , Zhihua Wei

Conversational recommender systems (CRS) are interactive agents that support their users in recommendation-related goals through multi-turn conversations. Generally, a CRS can be evaluated in various dimensions. Today's CRS mainly rely on…

Human-Computer Interaction · Computer Science 2022-09-08 Ahtsham Manzoor , Dietmar jannach

Conversational recommendation system (CRS) is able to obtain fine-grained and dynamic user preferences based on interactive dialogue. Previous CRS assumes that the user has a clear target item. However, for many users who resort to CRS,…

Information Retrieval · Computer Science 2022-02-08 Yiming Zhang , Lingfei Wu , Qi Shen , Yitong Pang , Zhihua Wei , Fangli Xu , Bo Long , Jian Pei

Existing Conversational Recommender Systems (CRS) predominantly utilize user simulators for training and evaluating recommendation policies. These simulators often oversimplify the complexity of user interactions by focusing solely on…

Information Retrieval · Computer Science 2024-09-10 Gangyi Zhang , Chongming Gao , Hang Pan , Runzhe Teng , Ruizhe Li

Conversational Recommender Systems (CRSs) aim to provide personalized recommendations by interacting with users through conversations. Most existing studies of CRS focus on extracting user preferences from conversational contexts. However,…

Information Retrieval · Computer Science 2025-04-28 Yibiao Wei , Jie Zou , Weikang Guo , Guoqing Wang , Xing Xu , Yang Yang

Conversational recommender systems (CRSs) provide users with an interactive means to express preferences and receive real-time personalized recommendations. The success of these systems is heavily influenced by the preference elicitation…

Human-Computer Interaction · Computer Science 2025-04-22 Ivica Kostric , Krisztian Balog , Ujwal Gadiraju

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

Recommendation is crucial in both academia and industry, and various techniques are proposed such as content-based collaborative filtering, matrix factorization, logistic regression, factorization machines, neural networks and multi-armed…

Information Retrieval · Computer Science 2019-10-30 Feng Liu , Ruiming Tang , Xutao Li , Weinan Zhang , Yunming Ye , Haokun Chen , Huifeng Guo , Yuzhou Zhang

In Conversational Recommendation Systems (CRS), the central question is how the conversational agent can naturally ask for user preferences and provide suitable recommendations. Existing works mainly follow the hierarchical architecture,…

Computation and Language · Computer Science 2023-10-24 Xian Li , Hongguang Shi , Yunfei Wang , Yeqin Zhang , Xubin Li , Cam-Tu Nguyen

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…

Information Retrieval · Computer Science 2025-04-16 Haibo Sun , Naoki Otani , Hannah Kim , Dan Zhang , Nikita Bhutani

Traditional recommendation systems estimate user preference on items from past interaction history, thus suffering from the limitations of obtaining fine-grained and dynamic user preference. Conversational recommendation system (CRS) brings…

Information Retrieval · Computer Science 2020-07-02 Wenqiang Lei , Gangyi Zhang , Xiangnan He , Yisong Miao , Xiang Wang , Liang Chen , Tat-Seng Chua

Conversational Recommender Systems (CRSs) deliver personalised recommendations through multi-turn natural language dialogue and increasingly support both task-oriented and exploratory interactions. Yet, the factors shaping user interaction…

Human-Computer Interaction · Computer Science 2025-08-05 Raj Mahmud , Shlomo Berkovsky , Mukesh Prasad , A. Baki Kocaballi

A conversational recommender system (CRS) is a practical application for item recommendation through natural language conversation. Such a system estimates user interests for appropriate personalized recommendations. Users sometimes have…

Computation and Language · Computer Science 2023-03-02 Yuka Okuda , Katsuhito Sudoh , Seitaro Shinagawa , Satoshi Nakamura

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