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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

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…

Computation and Language · Computer Science 2022-03-29 Ting-Chun Wang , Shang-Yu Su , Yun-Nung Chen

Multi-task learning (MTL) has been widely used in recommender systems, wherein predicting each type of user feedback on items (e.g, click, purchase) are treated as individual tasks and jointly trained with a unified model. Our key…

Information Retrieval · Computer Science 2022-03-29 Chenxiao Yang , Junwei Pan , Xiaofeng Gao , Tingyu Jiang , Dapeng Liu , Guihai Chen

Conversational Recommender Systems (CRS) has become an emerging research topic seeking to perform recommendations through interactive conversations, which generally consist of generation and recommendation modules. Prior work on CRS tends…

Computation and Language · Computer Science 2022-09-26 Lingzhi Wang , Shafiq Joty , Wei Gao , Xingshan Zeng , Kam-Fai Wong

Conversational Recommender System (CRS), which aims to recommend high-quality items to users through interactive conversations, has gained great research interest recently. A CRS is usually composed of a recommendation module and a…

Computation and Language · Computer Science 2022-10-10 Lingzhi Wang , Huang Hu , Lei Sha , Can Xu , Kam-Fai Wong , Daxin Jiang

Conversational recommender systems (CRS) dynamically obtain the user preferences via multi-turn questions and answers. The existing CRS solutions are widely dominated by deep reinforcement learning algorithms. However, deep reinforcement…

Information Retrieval · Computer Science 2022-09-01 A S M Ahsan-Ul Haque , Hongning Wang

Conversational recommender systems (CRS) enable the traditional recommender systems to explicitly acquire user preferences towards items and attributes through interactive conversations. Reinforcement learning (RL) is widely adopted to…

Information Retrieval · Computer Science 2021-05-21 Yang Deng , Yaliang Li , Fei Sun , Bolin Ding , Wai Lam

Conversational recommender systems (CRS) aim to recommend relevant items to users by eliciting user preference through natural language conversation. Prior work often utilizes external knowledge graphs for items' semantic information, a…

Computation and Language · Computer Science 2024-02-27 Mathieu Ravaut , Hao Zhang , Lu Xu , Aixin Sun , Yong Liu

Conversational recommendation systems (CRS) aim to recommend suitable items to users through natural language conversation. However, most CRS approaches do not effectively utilize the signal provided by these conversations. They rely…

Computation and Language · Computer Science 2023-05-24 Raghav Gupta , Renat Aksitov , Samrat Phatale , Simral Chaudhary , Harrison Lee , Abhinav Rastogi

Conversational recommender systems (CRSs) aim to proactively capture user preferences through natural language dialogue and recommend high-quality items. To achieve this, CRS gathers user preferences via a dialog module and builds user…

Artificial Intelligence · Computer Science 2025-11-12 Zhenye Yang , Jinpeng Chen , Huan Li , Xiongnan Jin , Xuanyang Li , Junwei Zhang , Hongbo Gao , Kaimin Wei , Senzhang Wang

Conversational recommender systems (CRS) aim to capture user's current intentions and provide recommendations through real-time multi-turn conversational interactions. As a human-machine interactive system, it is essential for CRS to…

Information Retrieval · Computer Science 2022-07-05 Shuokai Li , Yongchun Zhu , Ruobing Xie , Zhenwei Tang , Zhao Zhang , Fuzhen Zhuang , Qing He , Hui Xiong

Conversational recommender systems (CRS) aim to recommend suitable items to users through natural language conversations. For developing effective CRSs, a major technical issue is how to accurately infer user preference from very limited…

Computation and Language · Computer Science 2023-05-31 Yuanhang Zhou , Kun Zhou , Wayne Xin Zhao , Cheng Wang , Peng Jiang , He Hu

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) 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

Conversational Recommender Systems (CRS) provide personalized services through multi-turn interactions, yet most existing methods overlook users' heterogeneous decision-making styles and knowledge levels, which constrains both accuracy and…

Information Retrieval · Computer Science 2025-09-10 Yaying Luo , Hui Fang , Zhu Sun

Conversational Recommender Systems (CRS) actively elicit user preferences to generate adaptive recommendations. Mainstream reinforcement learning-based CRS solutions heavily rely on handcrafted reward functions, which may not be aligned…

Information Retrieval · Computer Science 2023-11-01 Zhendong Chu , Nan Wang , Hongning Wang

As a promising solution for model compression, knowledge distillation (KD) has been applied in recommender systems (RS) to reduce inference latency. Traditional solutions first train a full teacher model from the training data, and then…

Information Retrieval · Computer Science 2022-11-29 Gang Chen , Jiawei Chen , Fuli Feng , Sheng Zhou , Xiangnan He

Conversational recommender systems (CRS) aim to recommend high-quality items to users through interactive conversations. To develop an effective CRS, the support of high-quality datasets is essential. Existing CRS datasets mainly focus on…

Computation and Language · Computer Science 2020-11-03 Kun Zhou , Yuanhang Zhou , Wayne Xin Zhao , Xiaoke Wang , Ji-Rong Wen

Conversational Recommender Systems (CRSs) in E-commerce platforms aim to recommend items to users via multiple conversational interactions. Click-through rate (CTR) prediction models are commonly used for ranking candidate items. However,…

Information Retrieval · Computer Science 2021-05-03 Chi-Man Wong , Fan Feng , Wen Zhang , Chi-Man Vong , Hui Chen , Yichi Zhang , Peng He , Huan Chen , Kun Zhao , Huajun Chen

Sequential recommender systems (SRS) have become a research hotspot due to its power in modeling user dynamic interests and sequential behavioral patterns. To maximize model expressive ability, a default choice is to apply a larger and…

Information Retrieval · Computer Science 2022-04-12 Lei Chen , Fajie Yuan , Jiaxi Yang , Min Yang , Chengming Li
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