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Recommendation systems have been essential for both user experience and platform efficiency by alleviating information overload and supporting decision-making. Traditional methods, i.e., content-based filtering, collaborative filtering, and…

Information Retrieval · Computer Science 2025-08-22 Lining Chen , Qingwen Zeng , Huaming Chen

Knowledge graphs (KGs) have become important auxiliary information for helping recommender systems obtain a good understanding of user preferences. Despite recent advances in KG-based recommender systems, existing methods are prone to…

Information Retrieval · Computer Science 2023-04-25 Xuhui Ren , Wei Yuan , Tong Chen , Chaoqun Yang , Quoc Viet Hung Nguyen , Hongzhi Yin

Capturing users' precise preferences is a fundamental problem in large-scale recommender system. Currently, item-based Collaborative Filtering (CF) methods are common matching approaches in industry. However, they are not effective to model…

Information Retrieval · Computer Science 2020-01-01 Fuyu Lv , Taiwei Jin , Changlong Yu , Fei Sun , Quan Lin , Keping Yang , Wilfred Ng

Capturing the dynamics in user preference is crucial to better predict user future behaviors because user preferences often drift over time. Many existing recommendation algorithms -- including both shallow and deep ones -- often model such…

Information Retrieval · Computer Science 2022-04-05 Chao Chen , Dongsheng Li , Junchi Yan , Xiaokang Yang

Class Incremental Learning (CIL) based on pre-trained models offers a promising direction for open-world continual learning. Existing methods typically rely on correlation-based strategies, where an image's classification feature is used as…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Libo Huang , Zhulin An , Chuanguang Yang , Boyu Diao , Fei Wang , Yan Zeng , Zhifeng Hao , Yongjun Xu

Multimedia content is of predominance in the modern Web era. Investigating how users interact with multimodal items is a continuing concern within the rapid development of recommender systems. The majority of previous work focuses on…

Information Retrieval · Computer Science 2021-07-22 Jinghao Zhang , Yanqiao Zhu , Qiang Liu , Shu Wu , Shuhui Wang , Liang Wang

Sequential Recommendation Systems (SRS) have become essential in many real-world applications. However, existing SRS methods often rely on collaborative filtering signals and fail to capture real-time user preferences, while Conversational…

Information Retrieval · Computer Science 2025-09-12 Yifan Wang , Shen Gao , Jiabao Fang , Rui Yan , Billy Chiu , Shuo Shang

This paper explores meta-learning in sequential recommendation to alleviate the item cold-start problem. Sequential recommendation aims to capture user's dynamic preferences based on historical behavior sequences and acts as a key component…

Information Retrieval · Computer Science 2020-12-11 Yujia Zheng , Siyi Liu , Zekun Li , Shu Wu

Recommendation systems play a critical role in enhancing user experience and engagement in various online platforms. Traditional methods, such as Collaborative Filtering (CF) and Content-Based Filtering (CBF), rely heavily on past user…

Information Retrieval · Computer Science 2025-01-22 Xiaochuan Xu , Zeqiu Xu , Peiyang Yu , Jiani Wang

In an era of countless content offerings, recommender systems alleviate information overload by providing users with personalized content suggestions. Due to the scarcity of explicit user feedback, modern recommender systems typically…

Machine Learning · Computer Science 2023-03-07 Jessica Maghakian , Paul Mineiro , Kishan Panaganti , Mark Rucker , Akanksha Saran , Cheng Tan

Recommendation system plays an important role in online web applications. Sequential recommender further models user short-term preference through exploiting information from latest user-item interaction history. Most of the sequential…

Information Retrieval · Computer Science 2020-09-14 Ye Tao , Can Wang , Lina Yao , Weimin Li , Yonghong Yu

The integration of large language models (LLMs) into recommendation systems has revealed promising potential through their capacity to extract world knowledge for enhanced reasoning capabilities. However, current methodologies that adopt…

Information Retrieval · Computer Science 2025-10-17 Lingyu Mu , Hao Deng , Haibo Xing , Kaican Lin , Zhitong Zhu , Yu Zhang , Xiaoyi Zeng , Zhengxiao Liu , Zheng Lin , Jinxin Hu

Ubiquitous personalized recommender systems are built to achieve two seemingly conflicting goals, to serve high quality content tailored to individual user's taste and to adapt quickly to the ever changing environment. The former requires a…

Information Retrieval · Computer Science 2021-08-31 Yunbo Ouyang , Jun Shi , Haichao Wei , Huiji Gao

Sequential recommender infers users' evolving psychological motivations from historical interactions to recommend the next preferred items. Most existing methods compress recent behaviors into a single vector and optimize it toward a single…

Information Retrieval · Computer Science 2026-04-20 Yicheng Di , Yuan Liu , Zhi Chen , Jingcai Guo

Recently, self-attention based models have achieved state-of-the-art performance in sequential recommendation task. Following the custom from language processing, most of these models rely on a simple positional embedding to exploit the…

Machine Learning · Computer Science 2020-08-24 Sung Min Cho , Eunhyeok Park , Sungjoo Yoo

We propose RecSim, a configurable platform for authoring simulation environments for recommender systems (RSs) that naturally supports sequential interaction with users. RecSim allows the creation of new environments that reflect particular…

Machine Learning · Computer Science 2019-09-27 Eugene Ie , Chih-wei Hsu , Martin Mladenov , Vihan Jain , Sanmit Narvekar , Jing Wang , Rui Wu , Craig Boutilier

Deep learning-based recommendation models are used pervasively and broadly, for example, to recommend movies, products, or other information most relevant to users, in order to enhance the user experience. Among various application domains…

Machine Learning · Computer Science 2020-04-15 Carole-Jean Wu , Robin Burke , Ed H. Chi , Joseph Konstan , Julian McAuley , Yves Raimond , Hao Zhang

Sequential recommendation aims to capture user preferences by modeling sequential patterns in user-item interactions. However, these models are often influenced by noise such as accidental interactions, leading to suboptimal performance.…

Information Retrieval · Computer Science 2025-10-07 Tongzhou Wu , Yuhao Wang , Maolin Wang , Chi Zhang , Xiangyu Zhao

Some recent \textit{news recommendation} (NR) methods introduce a Pre-trained Language Model (PLM) to encode news representation by following the vanilla pre-train and fine-tune paradigm with carefully-designed recommendation-specific…

Information Retrieval · Computer Science 2023-04-12 Zizhuo Zhang , Bang Wang

Sequential recommendation (SR) leverages users' dynamic preferences, with recent advances incorporating multi-interest learning to model diverse user interests. However, most multi-interest SR models rely on noisy, sparse implicit feedback,…

Information Retrieval · Computer Science 2025-05-08 Shutong Qiao , Chen Gao , Wei Yuan , Yong Li , Hongzhi Yin