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Sequential recommender systems aim to predict users' next interested item given their historical interactions. However, a long-standing issue is how to distinguish between users' long/short-term interests, which may be heterogeneous and…

Information Retrieval · Computer Science 2023-03-14 Muyang Li , Zijian Zhang , Xiangyu Zhao , Wanyu Wang , Minghao Zhao , Runze Wu , Ruocheng Guo

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

Different from most conventional recommendation problems, sequential recommendation focuses on learning users' preferences by exploiting the internal order and dependency among the interacted items, which has received significant attention…

Information Retrieval · Computer Science 2025-03-14 Liwei Pan , Weike Pan , Meiyan Wei , Hongzhi Yin , Zhong Ming

To develop effective sequential recommender systems, numerous methods have been proposed to model historical user behaviors. Despite the effectiveness, these methods share the same fast thinking paradigm. That is, for making…

Information Retrieval · Computer Science 2025-04-15 Junjie Zhang , Beichen Zhang , Wenqi Sun , Hongyu Lu , Wayne Xin Zhao , Yu Chen , Ji-Rong Wen

Writing review for a purchased item is a unique channel to express a user's opinion in E-Commerce. Recently, many deep learning based solutions have been proposed by exploiting user reviews for rating prediction. In contrast, there has been…

Information Retrieval · Computer Science 2019-07-02 Chenliang Li , Xichuan Niu , Xiangyang Luo , Zhenzhong Chen , Cong Quan

The self-attention mechanism, which equips with a strong capability of modeling long-range dependencies, is one of the extensively used techniques in the sequential recommendation field. However, many recent studies represent that current…

Information Retrieval · Computer Science 2023-05-18 Xinyu Du , Huanhuan Yuan , Pengpeng Zhao , Jianfeng Qu , Fuzhen Zhuang , Guanfeng Liu , Victor S. Sheng

Recently, recommendation according to sequential user behaviors has shown promising results in many application scenarios. Generally speaking, real-world sequential user behaviors usually reflect a hybrid of sequential influences and…

Information Retrieval · Computer Science 2019-10-18 Xu Chen , Kenan Cui , Ya Zhang , Yanfeng Wang

Session-based recommendation (SBR) aims to predict the following item a user will interact with during an ongoing session. Most existing SBR models focus on designing sophisticated neural-based encoders to learn a session representation,…

Information Retrieval · Computer Science 2024-05-03 Minjin Choi , Hye-young Kim , Hyunsouk Cho , Jongwuk Lee

Sequential recommendation aims at identifying the next item that is preferred by a user based on their behavioral history. Compared to conventional sequential models that leverage attention mechanisms and RNNs, recent efforts mainly follow…

Information Retrieval · Computer Science 2022-05-04 Yu Tian , Jianxin Chang , Yannan Niu , Yang Song , Chenliang Li

Sequential recommendation aims at understanding user preference by capturing successive behavior correlations, which are usually represented as the item purchasing sequences based on their past interactions. Existing efforts generally…

Information Retrieval · Computer Science 2024-01-23 Yifang Qin , Wei Ju , Hongjun Wu , Xiao Luo , Ming Zhang

While many production-ready and robust algorithms are available for the task of recommendation systems, many of these systems do not take the order of user's consumption into account. The order of consumption can be very useful and matters…

Information Retrieval · Computer Science 2022-05-03 Mehdi Soleiman Nejad , Meysam Varasteh , Hadi Moradi , Mohammad Amin Sadeghi

Recurrent neural networks for session-based recommendation have attracted a lot of attention recently because of their promising performance. repeat consumption is a common phenomenon in many recommendation scenarios (e.g., e-commerce,…

Information Retrieval · Computer Science 2018-12-07 Pengjie Ren , Zhumin Chen , Jing Li , Zhaochun Ren , Jun Ma , Maarten de Rijke

Contrastive learning has proven effective in training sequential recommendation models by incorporating self-supervised signals from augmented views. Most existing methods generate multiple views from the same interaction sequence through…

Information Retrieval · Computer Science 2025-04-24 Yuanpeng Qu , Hajime Nobuhara

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

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

Recently, sequential recommendation has been adapted to the LLM paradigm to enjoy the power of LLMs. LLM-based methods usually formulate recommendation information into natural language and the model is trained to predict the next item in…

Information Retrieval · Computer Science 2024-02-16 Hanbing Wang , Xiaorui Liu , Wenqi Fan , Xiangyu Zhao , Venkataramana Kini , Devendra Yadav , Fei Wang , Zhen Wen , Jiliang Tang , Hui Liu

Sequential recommendation models aim to learn from users evolving preferences. However, current state-of-the-art models suffer from an inherent popularity bias. This study developed a novel framework, BiCoRec, that adaptively accommodates…

Information Retrieval · Computer Science 2025-12-17 Mufhumudzi Muthivhi , Terence L van Zyl , Hairong Wang

Recent advancements in Multimodal Large Language Models (MLLMs) have demonstrated significant potential in recommendation systems. However, the effective application of MLLMs to multimodal sequential recommendation remains unexplored: A)…

Information Retrieval · Computer Science 2025-12-25 Haoyu Wang , Yitong Wang , Jining Wang

Sequential Recommendation (SR) plays a pivotal role in recommender systems by tailoring recommendations to user preferences based on their non-stationary historical interactions. Achieving high-quality performance in SR requires attention…

Information Retrieval · Computer Science 2024-08-23 Wuchao Li , Rui Huang , Haijun Zhao , Chi Liu , Kai Zheng , Qi Liu , Na Mou , Guorui Zhou , Defu Lian , Yang Song , Wentian Bao , Enyun Yu , Wenwu Ou

In applications such as e-commerce, online education, and streaming services, sequential recommendation systems play a critical role. Despite the excellent performance of self-attention-based sequential recommendation models in capturing…

Information Retrieval · Computer Science 2026-02-06 Jinzhao Su , Zhenhua Huang