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Related papers: Multi-Interest-Aware User Modeling for Large-Scale…

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Session-based recommendation (SR) has become an important and popular component of various e-commerce platforms, which aims to predict the next interacted item based on a given session. Most of existing SR models only focus on exploiting…

Information Retrieval · Computer Science 2020-06-19 Wenjing Meng , Deqing Yang , Yanghua Xiao

Recommender systems have rapidly evolved and become integral to many online services. However, existing systems sometimes produce unstable and unsatisfactory recommendations that fail to align with users' fundamental and long-term…

Information Retrieval · Computer Science 2025-05-05 Lijian Chen , Wei Yuan , Tong Chen , Xiangyu Zhao , Nguyen Quoc Viet Hung , Hongzhi Yin

Sequential recommender systems (SRS) have gained increasing popularity due to their remarkable proficiency in capturing dynamic user preferences. In the current setup of SRS, a common configuration is to uniformly consider each historical…

Information Retrieval · Computer Science 2025-06-03 Hao Zhang , Mingyue Cheng , Zhiding Liu , Junzhe Jiang

Sequential recommender systems (SRS) could capture dynamic user preferences by modeling historical behaviors ordered in time. Despite effectiveness, focusing only on the \textit{collaborative signals} from behaviors does not fully grasp…

Information Retrieval · Computer Science 2024-09-20 Mingyue Cheng , Hao Zhang , Qi Liu , Fajie Yuan , Zhi Li , Zhenya Huang , Enhong Chen , Jun Zhou , Longfei Li

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

Recommender systems, which can significantly help users find their interested items from the information era, has attracted an increasing attention from both the scientific and application society. One of the widest applied recommendation…

Information Retrieval · Computer Science 2015-05-19 Lu Yu , Chuang Liu , Zi-Ke Zhang

In the context of the booming digital economy, recommendation systems, as a key link connecting users and numerous services, face challenges in modeling user behavior sequences on local-life service platforms, including the sparsity of long…

Information Retrieval · Computer Science 2025-11-04 Zhaoyu Hu , Jianyang Wang , Hao Guo , Yuan Tian , Erpeng Xue , Xianyang Qi , Hongxiang Lin , Lei Wang , Sheng Chen

In modern recommender systems, sequential recommendation leverages chronological user behaviors to make effective next-item suggestions, which suffers from data sparsity issues, especially for new users. One promising line of work is the…

Information Retrieval · Computer Science 2023-11-15 Guanyu Lin , Chen Gao , Yu Zheng , Jianxin Chang , Yanan Niu , Yang Song , Kun Gai , Zhiheng Li , Depeng Jin , Yong Li , Meng Wang

Session based model is widely used in recommend system. It use the user click sequence as input of a Recurrent Neural Network (RNN), and get the output of the RNN network as the vector embedding of the session, and use the inner product of…

Machine Learning · Computer Science 2019-08-28 Qizhi Zhang , Yi Lin , Kangle Wu , Yongliang Li , Anxiang Zeng

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

Session-based recommendation (SR) aims to dynamically recommend items to a user based on a sequence of the most recent user-item interactions. Most existing studies on SR adopt advanced deep learning methods. However, the majority only…

Information Retrieval · Computer Science 2024-01-17 Huizi Wu , Cong Geng , Hui Fang

Existing recommendation methods often struggle to model users' multifaceted preferences due to the diversity and volatility of user behavior, as well as the inherent uncertainty and ambiguity of item attributes in practical scenarios.…

Information Retrieval · Computer Science 2025-06-19 Zihao Li , Qiang Chen , Lixin Zou , Aixin Sun , Chenliang Li

Multiple content providers rely on native advertisement for revenue by placing ads within the organic content of their pages. We refer to this setting as ``queryless'' to differentiate from search advertisement where a user submits a search…

Information Retrieval · Computer Science 2021-01-01 Iyad Batal , Akshay Soni

Session-based recommendation aims to predict a user's next action based on previous actions in the current session. The major challenge is to capture authentic and complete user preferences in the entire session. Recent work utilizes graph…

Information Retrieval · Computer Science 2022-01-11 Jiayan Guo , Yaming Yang , Xiangchen Song , Yuan Zhang , Yujing Wang , Jing Bai , Yan Zhang

Lifelong user behavior sequences are crucial for capturing user interests and predicting user responses in modern recommendation systems. A two-stage paradigm is typically adopted to handle these long sequences: a subset of relevant…

Information Retrieval · Computer Science 2025-03-27 Ningya Feng , Junwei Pan , Jialong Wu , Baixu Chen , Ximei Wang , Qian Li , Xian Hu , Jie Jiang , Mingsheng Long

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…

Information Retrieval · Computer Science 2025-03-11 Kyungho Kim , Sunwoo Kim , Geon Lee , Jinhong Jung , Kijung Shin

Multifaceted user modeling aims to uncover fine-grained patterns and learn representations from user data, revealing their diverse interests and characteristics, such as profile, preference, and personality. Recent studies on foundation…

Information Retrieval · Computer Science 2024-12-24 Chunxu Zhang , Guodong Long , Hongkuan Guo , Zhaojie Liu , Guorui Zhou , Zijian Zhang , Yang Liu , Bo Yang

Users prefer diverse recommendations over homogeneous ones. However, most previous work on Sequential Recommenders does not consider diversity, and strives for maximum accuracy, resulting in homogeneous recommendations. In this paper, we…

Information Retrieval · Computer Science 2020-08-04 Anton Steenvoorden , Emanuele Di Gloria , Wanyu Chen , Pengjie Ren , Maarten de Rijke

Understanding multi-vehicle interactive behaviors with temporal sequential observations is crucial for autonomous vehicles to make appropriate decisions in an uncertain traffic environment. On-demand similarity measures are significant for…

Machine Learning · Computer Science 2020-03-13 Qin Lin , Wenshuo Wang , Yihuan Zhang , John Dolan

Estimating Click-Through Rate (CTR) is a vital yet challenging task in personalized product search. However, existing CTR methods still struggle in the product search settings due to the following three challenges including how to more…

Information Retrieval · Computer Science 2023-04-06 Qijie Shen , Hong Wen , Jing Zhang , Qi Rao