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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

The past two decades have witnessed the rapid development of personalized recommendation techniques. Despite significant progress made in both research and practice of recommender systems, to date, there is a lack of a widely-recognized…

Information Retrieval · Computer Science 2022-07-19 Jieming Zhu , Quanyu Dai , Liangcai Su , Rong Ma , Jinyang Liu , Guohao Cai , Xi Xiao , Rui Zhang

Session-based Recommendation (SBR) refers to the task of predicting the next item based on short-term user behaviors within an anonymous session. However, session embedding learned by a non-linear encoder is usually not in the same…

Information Retrieval · Computer Science 2022-04-26 Yupeng Hou , Binbin Hu , Zhiqiang Zhang , Wayne Xin Zhao

One of the main challenges in Recommender Systems (RSs) is the New User problem which happens when the system has to generate personalised recommendations for a new user whom the system has no information about. Active Learning tries to…

Information Retrieval · Computer Science 2017-01-10 Roberto Pagano , Massimo Quadrana , Mehdi Elahi , Paolo Cremonesi

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

Session-based recommendation (SBR) is a challenging task, which aims at recommending items based on anonymous behavior sequences. Most existing SBR studies model the user preferences based only on the current session while neglecting the…

Information Retrieval · Computer Science 2021-06-02 Ziyang Wang , Wei Wei , Gao Cong , Xiao-Li Li , Xian-Ling Mao , Minghui Qiu , Shanshan Feng

Sequential recommendation methods are crucial in modern recommender systems for their remarkable capability to understand a user's changing interests based on past interactions. However, a significant challenge faced by current methods…

Information Retrieval · Computer Science 2025-01-17 Haohao Qu , Yifeng Zhang , Liangbo Ning , Wenqi Fan , Qing Li

A substantial progress in development of new and efficient tensor factorization techniques has led to an extensive research of their applicability in recommender systems field. Tensor-based recommender models push the boundaries of…

Machine Learning · Computer Science 2018-02-20 Evgeny Frolov , Ivan Oseledets

Recommender systems play a crucial role in tackling the challenge of information overload by delivering personalized recommendations based on individual user preferences. Deep learning techniques, such as RNNs, GNNs, and Transformer…

Information Retrieval · Computer Science 2025-12-16 Xubin Ren , Wei Wei , Lianghao Xia , Chao Huang

Recent years have seen a significant amount of interests in Sequential Recommendation (SR), which aims to understand and model the sequential user behaviors and the interactions between users and items over time. Surprisingly, despite the…

Information Retrieval · Computer Science 2022-02-02 Dadong Miao , Yanan Wang , Guoyu Tang , Lin Liu , Sulong Xu , Bo Long , Yun Xiao , Lingfei Wu , Yunjiang Jiang

Real-world recommendation systems commonly offer diverse content scenarios for users to interact with. Considering the enormous number of users in industrial platforms, it is infeasible to utilize a single unified recommendation model to…

Information Retrieval · Computer Science 2024-12-10 Chonggang Song , Chunxu Shen , Hao Gu , Yaoming Wu , Lingling Yi , Jie Wen , Chuan 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

Many modern sequential recommender systems use deep neural networks, which can effectively estimate the relevance of items but require a lot of time to train. Slow training increases expenses, hinders product development timescales and…

Information Retrieval · Computer Science 2022-07-18 Aleksandr Petrov , Craig Macdonald

The textile and apparel industries have grown tremendously over the last few years. Customers no longer have to visit many stores, stand in long queues, or try on garments in dressing rooms as millions of products are now available in…

Information Retrieval · Computer Science 2023-09-13 Yashar Deldjoo , Fatemeh Nazary , Arnau Ramisa , Julian Mcauley , Giovanni Pellegrini , Alejandro Bellogin , Tommaso Di Noia

Conversational recommender systems (CRS) aim to provide highquality recommendations in conversations. However, most conventional CRS models mainly focus on the dialogue understanding of the current session, ignoring other rich multi-aspect…

Information Retrieval · Computer Science 2022-04-26 Shuokai Li , Ruobing Xie , Yongchun Zhu , Xiang Ao , Fuzhen Zhuang , Qing He

Modeling user preference from his historical sequences is one of the core problems of sequential recommendation. Existing methods in this field are widely distributed from conventional methods to deep learning methods. However, most of them…

Information Retrieval · Computer Science 2021-07-28 Mengqi Zhang , Shu Wu , Xueli Yu , Qiang Liu , Liang Wang

Sequential recommendation involves automatically recommending the next item to users based on their historical item sequence. While most prior research employs RNN or transformer methods to glean information from the item…

Information Retrieval · Computer Science 2024-10-10 Xiaofan Zhou

Accounting for the fact that users have different sequential patterns, the main drawback of state-of-the-art recommendation strategies is that a fixed sequence length of user-item interactions is required as input to train the models. This…

Information Retrieval · Computer Science 2021-08-04 Stefanos Antaris , Dimitrios Rafailidis

Sequential recommendation aims to leverage users' historical behaviors to predict their next interaction. Existing works have not yet addressed two main challenges in sequential recommendation. First, user behaviors in their rich historical…

Information Retrieval · Computer Science 2023-07-27 Jianxin Chang , Chen Gao , Yu Zheng , Yiqun Hui , Yanan Niu , Yang Song , Depeng Jin , Yong Li

Information retrieval (IR) and recommender systems (RS) have been employed for addressing search tasks executed during literature review and the overall scholarly communication lifecycle. Majority of the studies have concentrated on…

Information Retrieval · Computer Science 2016-09-07 Aravind Sesagiri Raamkumar , Schubert Foo , Natalie Pang