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Sequential recommendation effectively addresses information overload by modeling users' temporal and sequential interaction patterns. To overcome the limitations of supervision signals, recent approaches have adopted self-supervised…

信息检索 · 计算机科学 2024-06-03 Yuxi Liu , Lianghao Xia , Chao Huang

The success of recommender systems in modern online platforms is inseparable from the accurate capture of users' personal tastes. In everyday life, large amounts of user feedback data are created along with user-item online interactions in…

机器学习 · 计算机科学 2019-06-25 Xiao Zhou , Danyang Liu , Jianxun Lian , Xing Xie

Expressive robotic behavior is essential for the widespread acceptance of robots in social environments. Recent advancements in learned legged locomotion controllers have enabled more dynamic and versatile robot behaviors. However,…

机器人学 · 计算机科学 2025-04-02 Jaden Clark , Joey Hejna , Dorsa Sadigh

In conversational recommender systems (CRSs), conversations usually involve a set of items and item-related entities or attributes, e.g., director is a related entity of a movie. These items and item-related entities are often mentioned…

信息检索 · 计算机科学 2024-12-04 Jie Zou , Aixin Sun , Cheng Long , Evangelos Kanoulas

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…

信息检索 · 计算机科学 2021-06-02 Ziyang Wang , Wei Wei , Gao Cong , Xiao-Li Li , Xian-Ling Mao , Minghui Qiu , Shanshan Feng

Cross-Domain Sequential Recommendation (CDSR) aims to predict future interactions based on user's historical sequential interactions from multiple domains. Generally, a key challenge of CDSR is how to mine precise cross-domain user…

信息检索 · 计算机科学 2023-04-11 Jiangxia Cao , Xin Cong , Jiawei Sheng , Tingwen Liu , Bin Wang

Multi-behavior recommendation aims to predict user conversions by modeling various interaction types that carry distinct intent signals. Recently, generative sequence modeling methods have emerged as an important paradigm for multi-behavior…

信息检索 · 计算机科学 2026-04-28 Wenxuan Yang , Xiaoyang Xu , Hanyu Zhang , Zhexuan Xu , Wanqiang Xiong , Zhaoqun Chen

Successful sequential recommendation systems rely on accurately capturing the user's short-term and long-term interest. Although Transformer-based models achieved state-of-the-art performance in the sequential recommendation task, they…

机器学习 · 计算机科学 2021-08-18 Hojoon Lee , Dongyoon Hwang , Sunghwan Hong , Changyeon Kim , Seungryong Kim , Jaegul Choo

Human motion prediction is a challenging task due to the stochasticity and aperiodicity of future poses. Recently, graph convolutional network has been proven to be very effective to learn dynamic relations among pose joints, which is…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Lingwei Dang , Yongwei Nie , Chengjiang Long , Qing Zhang , Guiqing Li

Transformer architectures have facilitated the development of large-scale and general-purpose sequence models for prediction tasks in natural language processing and computer vision, e.g., GPT-3 and Swin Transformer. Although originally…

机器学习 · 计算机科学 2023-06-27 Muning Wen , Runji Lin , Hanjing Wang , Yaodong Yang , Ying Wen , Luo Mai , Jun Wang , Haifeng Zhang , Weinan Zhang

Cross-domain sequential recommendation (CDSR) alleviates interaction sparsity by jointly modeling user behaviors across multiple domains. While current studies have made some progresses, they still neglect two issues that severely impact…

信息检索 · 计算机科学 2026-05-05 Zhida Qin , Zemu Liu , Haoyan Fu , Chong Zhang , Tianyu Huang , Yidong Li , Gangyi Ding

Traditional recommender systems primarily rely on a single type of user-item interaction, such as item purchases or ratings, to predict user preferences. However, in real-world scenarios, users engage in a variety of behaviors, such as…

信息检索 · 计算机科学 2025-03-11 Kyungho Kim , Sunwoo Kim , Geon Lee , Jinhong Jung , Kijung Shin

Sequential recommendation is an extensively explored approach to capturing users' evolving preferences based on past interactions, aimed at predicting their next likely choice. Despite significant advancements in this domain, including…

信息检索 · 计算机科学 2025-04-15 Kowei Shih , Yi Han , Li Tan

User and item attributes are essential side-information; their interactions (i.e., their co-occurrence in the sample data) can significantly enhance prediction accuracy in various recommender systems. We identify two different types of…

信息检索 · 计算机科学 2021-07-26 Yixin Su , Rui Zhang , Sarah Erfani , Junhao Gan

The remarkable progress of network embedding has led to state-of-the-art algorithms in recommendation. However, the sparsity of user-item interactions (i.e., explicit preferences) on websites remains a big challenge for predicting users'…

信息检索 · 计算机科学 2019-07-30 Jun Zhao , Zhou Zhou , Ziyu Guan , Wei Zhao , Wei Ning , Guang Qiu , Xiaofei He

Cross-domain Recommendation systems leverage multi-domain user interactions to improve performance, especially in sparse data or new user scenarios. However, CDR faces challenges such as effectively capturing user preferences and avoiding…

信息检索 · 计算机科学 2024-10-10 Junxiong Tong , Mingjia Yin , Hao Wang , Qiushi Pan , Defu Lian , Enhong Chen

Recommender systems easily face the issue of user preference shifts. User representations will become out-of-date and lead to inappropriate recommendations if user preference has shifted over time. To solve the issue, existing work focuses…

信息检索 · 计算机科学 2023-03-29 Wenjie Wang , Xinyu Lin , Liuhui Wang , Fuli Feng , Yunshan Ma , Tat-Seng Chua

Conversational Recommender Systems (CRSs) aim to provide personalized recommendations by interacting with users through conversations. Most existing studies of CRS focus on extracting user preferences from conversational contexts. However,…

信息检索 · 计算机科学 2025-04-28 Yibiao Wei , Jie Zou , Weikang Guo , Guoqing Wang , Xing Xu , Yang Yang

Conversational recommender system (CRS) interacts with users through multi-turn dialogues in natural language, which aims to provide high-quality recommendations for user's instant information need. Although great efforts have been made to…

信息检索 · 计算机科学 2023-10-27 Chenzhan Shang , Yupeng Hou , Wayne Xin Zhao , Yaliang Li , Jing Zhang

Sequential recommendation aims to predict the next item based on user interests in historical interaction sequences. Historical interaction sequences often contain irrelevant noisy items, which significantly hinders the performance of…

信息检索 · 计算机科学 2025-10-14 Liang Li , Zhou Yang , Xiaofei Zhu