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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

Deep learning based recommender systems have been extensively explored in recent years. However, the large number of models proposed each year poses a big challenge for both researchers and practitioners in reproducing the results for…

Information Retrieval · Computer Science 2019-05-28 Shuai Zhang , Yi Tay , Lina Yao , Bin Wu , Aixin Sun

Any organization needs to improve their products, services, and processes. In this context, engaging with customers and understanding their journey is essential. Organizations have leveraged various techniques and technologies to support…

Computation and Language · Computer Science 2022-12-08 Sahar Moradizeyveh

Recommender systems (RSs) aim to help users to effectively retrieve items of their interests from a large catalogue. For a quite long period of time, researchers and practitioners have been focusing on developing accurate RSs. Recent years…

Information Retrieval · Computer Science 2023-11-20 Shoujin Wang , Xiuzhen Zhang , Yan Wang , Huan Liu , Francesco Ricci

Conversational recommender systems (CRS) explicitly solicit users' preferences for improved recommendations on the fly. Most existing CRS solutions count on a single policy trained by reinforcement learning for a population of users.…

Artificial Intelligence · Computer Science 2023-02-17 Zhendong Chu , Hongning Wang , Yun Xiao , Bo Long , Lingfei Wu

User-centric evaluation has become a key paradigm for assessing Conversational Recommender Systems (CRS), aiming to capture subjective qualities such as satisfaction, trust, and rapport. To enable scalable evaluation, recent work…

Information Retrieval · Computer Science 2026-02-20 Michael Müller , Amir Reza Mohammadi , Andreas Peintner , Beatriz Barroso Gstrein , Günther Specht , Eva Zangerle

With the rapid development of online services, recommender systems (RS) have become increasingly indispensable for mitigating information overload. Despite remarkable progress, conventional recommendation models (CRM) still have some…

Information Retrieval · Computer Science 2024-07-10 Jianghao Lin , Xinyi Dai , Yunjia Xi , Weiwen Liu , Bo Chen , Hao Zhang , Yong Liu , Chuhan Wu , Xiangyang Li , Chenxu Zhu , Huifeng Guo , Yong Yu , Ruiming Tang , Weinan Zhang

Conversational semantic role labeling (CSRL) is believed to be a crucial step towards dialogue understanding. However, it remains a major challenge for existing CSRL parser to handle conversational structural information. In this paper, we…

Computation and Language · Computer Science 2021-11-05 Han Wu , Kun Xu , Linqi Song

This paper describes the design and functionality of ConvoKit, an open-source toolkit for analyzing conversations and the social interactions embedded within. ConvoKit provides an unified framework for representing and manipulating…

Computation and Language · Computer Science 2020-05-12 Jonathan P. Chang , Caleb Chiam , Liye Fu , Andrew Z. Wang , Justine Zhang , Cristian Danescu-Niculescu-Mizil

Conversational recommender systems aim to provide personalized recommendations by analyzing and utilizing contextual information related to dialogue. However, existing methods typically model the dialogue context as a whole, neglecting the…

Information Retrieval · Computer Science 2025-04-25 Guojia An , Jie Zou , Jiwei Wei , Chaoning Zhang , Fuming Sun , Yang Yang

SpeechBrain is an open-source Conversational AI toolkit based on PyTorch, focused particularly on speech processing tasks such as speech recognition, speech enhancement, speaker recognition, text-to-speech, and much more. It promotes…

This paper introduces RecAI, a practical toolkit designed to augment or even revolutionize recommender systems with the advanced capabilities of Large Language Models (LLMs). RecAI provides a suite of tools, including Recommender AI Agent,…

Information Retrieval · Computer Science 2024-03-12 Jianxun Lian , Yuxuan Lei , Xu Huang , Jing Yao , Wei Xu , Xing Xie

Growing interests have been attracted in Conversational Recommender Systems (CRS), which explore user preference through conversational interactions in order to make appropriate recommendation. However, there is still a lack of ability in…

Computation and Language · Computer Science 2021-09-06 Wenchang Ma , Ryuichi Takanobu , Minlie Huang

Conversational recommender systems (CRSs) aim to understand the information needs and preferences expressed in a dialogue to recommend suitable items to the user. Most of the existing conversational recommendation datasets are synthesized…

Information Retrieval · Computer Science 2023-05-09 Yuanxing Liu , Weinan Zhang , Baohua Dong , Yan Fan , Hang Wang , Fan Feng , Yifan Chen , Ziyu Zhuang , Hengbin Cui , Yongbin Li , Wanxiang Che

The recommender system (RS) has been an integral toolkit of online services. They are equipped with various deep learning techniques to model user preference based on identifier and attribute information. With the emergence of multimedia…

Information Retrieval · Computer Science 2024-09-05 Qidong Liu , Jiaxi Hu , Yutian Xiao , Xiangyu Zhao , Jingtong Gao , Wanyu Wang , Qing Li , Jiliang Tang

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…

Computation and Language · Computer Science 2021-05-19 Tong Zhang , Yong Liu , Peixiang Zhong , Chen Zhang , Hao Wang , Chunyan Miao

While previous chapters focused on recommendation systems (RSs) based on standardized, non-verbal user feedback such as purchases, views, and clicks -- the advent of LLMs has unlocked the use of natural language (NL) interactions for…

Recommender Systems (RS) have significantly advanced online content filtering and personalized decision-making. However, emerging vulnerabilities in RS have catalyzed a paradigm shift towards Trustworthy RS (TRS). Despite substantial…

Information Retrieval · Computer Science 2025-02-19 Jin Li , Shoujin Wang , Qi Zhang , Longbing Cao , Fang Chen , Xiuzhen Zhang , Dietmar Jannach , Charu C. Aggarwal

This paper discusses the potential for creating academic resources (tools, data, and evaluation approaches) to support research in conversational search, by focusing on realistic information needs and conversational interactions.…

In this paper, we present a new open source toolkit for automatic speech recognition (ASR), named CAT (CRF-based ASR Toolkit). A key feature of CAT is discriminative training in the framework of conditional random field (CRF), particularly…

Machine Learning · Computer Science 2019-11-21 Keyu An , Hongyu Xiang , Zhijian Ou