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Conversational recommendation systems (CRS) engage with users by inferring user preferences from dialog history, providing accurate recommendations, and generating appropriate responses. Previous CRSs use knowledge graph (KG) based…

计算与语言 · 计算机科学 2021-12-16 Bowen Yang , Cong Han , Yu Li , Lei Zuo , Zhou Yu

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

Recent years have seen a surge of research into conversational recommender systems (CRS). Among existing datasets, ReDial is the most widely used benchmark, cited in hundreds of studies. However, variations in how the dataset is…

信息检索 · 计算机科学 2026-05-21 Ivica Kostric , Krisztian Balog

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,…

信息检索 · 计算机科学 2025-02-21 Yaochen Zhu , Chao Wan , Harald Steck , Dawen Liang , Yesu Feng , Nathan Kallus , Jundong Li

The chit-chat-based conversational recommendation systems (CRS) provide item recommendations to users through natural language interactions. To better understand user's intentions, external knowledge graphs (KG) have been introduced into…

计算与语言 · 计算机科学 2021-05-19 Tong Zhang , Yong Liu , Peixiang Zhong , Chen Zhang , Hao Wang , Chunyan Miao

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

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,…

信息检索 · 计算机科学 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

Conversational Recommender System (CRS) interacts with users through natural language to understand their preferences and provide personalized recommendations in real-time. CRS has demonstrated significant potential, prompting researchers…

人工智能 · 计算机科学 2024-03-26 Lixi Zhu , Xiaowen Huang , Jitao Sang

Most conversational recommendation approaches are either not explainable, or they require external user's knowledge for explaining or their explanations cannot be applied in real time due to computational limitations. In this work, we…

人工智能 · 计算机科学 2021-03-23 Nikolaos Kondylidis , Jie Zou , Evangelos Kanoulas

Recommender systems are one of the most successful applications of data mining and machine learning technology in practice. Academic research in the field is historically often based on the matrix completion problem formulation, where for…

信息检索 · 计算机科学 2018-02-26 Massimo Quadrana , Paolo Cremonesi , Dietmar Jannach

Conversational information access is an emerging research area. Currently, human evaluation is used for end-to-end system evaluation, which is both very time and resource intensive at scale, and thus becomes a bottleneck of progress. As an…

信息检索 · 计算机科学 2020-06-17 Shuo Zhang , Krisztian Balog

Sequential Recommender Systems (SRSs) aim to predict the next item that users will consume, by modeling the user interests within their item sequences. While most existing SRSs focus on a single type of user behavior, only a few pay…

信息检索 · 计算机科学 2023-01-31 Junsu Cho , Dongmin Hyun , Dong won Lim , Hyeon jae Cheon , Hyoung-iel Park , Hwanjo Yu

In recent years, conversational recommender system (CRS) has received much attention in the research community. However, existing studies on CRS vary in scenarios, goals and techniques, lacking unified, standardized implementation or…

计算与语言 · 计算机科学 2021-01-05 Kun Zhou , Xiaolei Wang , Yuanhang Zhou , Chenzhan Shang , Yuan Cheng , Wayne Xin Zhao , Yaliang Li , Ji-Rong Wen

Conversational Recommender Systems (CRS) illuminate user preferences via multi-round interactive dialogues, ultimately navigating towards precise and satisfactory recommendations. However, contemporary CRS are limited to inquiring binary or…

信息检索 · 计算机科学 2024-04-04 Wei Fan , Weijia Zhang , Weiqi Wang , Yangqiu Song , Hao Liu

Multi-objective recommender systems (MORS) provide suggestions to users according to multiple (and possibly conflicting) goals. When a system optimizes its results at the individual-user level, it tailors them on a user's propensity towards…

信息检索 · 计算机科学 2023-10-17 Patrik Dokoupil , Ladislav Peska , Ludovico Boratto

Due to strong capabilities in conducting fluent, multi-turn conversations with users, Large Language Models (LLMs) have the potential to further improve the performance of Conversational Recommender System (CRS). Unlike the aimless…

信息检索 · 计算机科学 2024-02-05 Jiabao Fang , Shen Gao , Pengjie Ren , Xiuying Chen , Suzan Verberne , Zhaochun Ren

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…

信息检索 · 计算机科学 2023-11-01 Zhendong Chu , Nan Wang , Hongning Wang

Users in consumption domains, like music, are often able to more efficiently provide preferences over a set of items (e.g. a playlist or radio) than over single items (e.g. songs). Unfortunately, this is an underexplored area of research,…

信息检索 · 计算机科学 2023-05-09 Arun Tejasvi Chaganty , Megan Leszczynski , Shu Zhang , Ravi Ganti , Krisztian Balog , Filip Radlinski

Traditional recommender systems are typically passive in that they try to adapt their recommendations to the user's historical interests. However, it is highly desirable for commercial applications, such as e-commerce, advertisement…

信息检索 · 计算机科学 2022-11-24 Haoren Zhu , Hao Ge , Xiaodong Gu , Pengfei Zhao , Dik Lun Lee

Explainable recommender systems (RS) have traditionally followed a one-size-fits-all approach, delivering the same explanation level of detail to each user, without considering their individual needs and goals. Further, explanations in RS…