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Sequential recommendation models have achieved state-of-the-art performance using self-attention mechanism. It has since been found that moving beyond only using item ID and positional embeddings leads to a significant accuracy boost when…

信息检索 · 计算机科学 2024-09-10 Linsey Pang , Amir Hossein Raffiee , Wei Liu , Keld Lundgaard

Generative models, particularly diffusion model, have emerged as powerful tools for sequential recommendation. However, accurately modeling user preferences remains challenging due to the noise perturbations inherent in the forward and…

信息检索 · 计算机科学 2025-05-23 Feng Liu , Lixin Zou , Xiangyu Zhao , Min Tang , Liming Dong , Dan Luo , Xiangyang Luo , Chenliang Li

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

Session-based recommendation aims to predict user the next action based on historical behaviors in an anonymous session. For better recommendations, it is vital to capture user preferences as well as their dynamics. Besides, user…

信息检索 · 计算机科学 2021-06-18 Dou Hu , Lingwei Wei , Wei Zhou , Xiaoyong Huai , Zhiqi Fang , Songlin Hu

Session-based Recurrent Neural Networks (RNNs) are gaining increasing popularity for recommendation task, due to the high autocorrelation of user's behavior on the latest session and the effectiveness of RNN to capture the sequence order…

机器学习 · 计算机科学 2019-09-13 Mei Wang , Weizhi Li , Yan Yan

Due to the memorization effect in Deep Neural Networks (DNNs), training with noisy labels usually results in inferior model performance. Existing state-of-the-art methods primarily adopt a sample selection strategy, which selects small-loss…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Yazhou Yao , Zeren Sun , Chuanyi Zhang , Fumin Shen , Qi Wu , Jian Zhang , Zhenmin Tang

Casting session-based or sequential recommendation as reinforcement learning (RL) through reward signals is a promising research direction towards recommender systems (RS) that maximize cumulative profits. However, the direct use of RL…

机器学习 · 计算机科学 2021-11-08 Xin Xin , Alexandros Karatzoglou , Ioannis Arapakis , Joemon M. Jose

Mainstream solutions to Sequential Recommendation (SR) represent items with fixed vectors. These vectors have limited capability in capturing items' latent aspects and users' diverse preferences. As a new generative paradigm, Diffusion…

信息检索 · 计算机科学 2023-10-31 Zihao Li , Aixin Sun , Chenliang Li

Contrastive learning (CL) benefits the training of sequential recommendation models with informative self-supervision signals. Existing solutions apply general sequential data augmentation strategies to generate positive pairs and encourage…

信息检索 · 计算机科学 2024-03-19 Peilin Zhou , Jingqi Gao , Yueqi Xie , Qichen Ye , Yining Hua , Jae Boum Kim , Shoujin Wang , Sunghun Kim

In recommendation systems, users frequently engage in multiple types of behaviors, such as clicking, adding to a cart, and purchasing. However, with diversified behavior data, user behavior sequences will become very long in the short term,…

信息检索 · 计算机科学 2024-03-27 Yongqiang Han , Hao Wang , Kefan Wang , Likang Wu , Zhi Li , Wei Guo , Yong Liu , Defu Lian , Enhong Chen

Recommender systems (RSs) now play a very important role in the online lives of people as they serve as personalized filters for users to find relevant items from an array of options. Owing to their effectiveness, RSs have been widely…

信息检索 · 计算机科学 2020-09-22 Min Gao , Junwei Zhang , Junliang Yu , Jundong Li , Junhao Wen , Qingyu Xiong

Sequential recommendation (SRS) has become the technical foundation in many applications recently, which aims to recommend the next item based on the user's historical interactions. However, sequential recommendation often faces the problem…

信息检索 · 计算机科学 2023-09-25 Qidong Liu , Fan Yan , Xiangyu Zhao , Zhaocheng Du , Huifeng Guo , Ruiming Tang , Feng Tian

Users' interactions with items are driven by various intents (e.g., preparing for holiday gifts, shopping for fishing equipment, etc.).However, users' underlying intents are often unobserved/latent, making it challenging to leverage such…

人工智能 · 计算机科学 2022-02-08 Yongjun Chen , Zhiwei Liu , Jia Li , Julian McAuley , Caiming Xiong

The sequential interaction network usually find itself in a variety of applications, e.g., recommender system. Herein, inferring future interaction is of fundamental importance, and previous efforts are mainly focused on the dynamics in the…

机器学习 · 计算机科学 2024-01-03 Li Sun , Junda Ye , Jiawei Zhang , Yong Yang , Mingsheng Liu , Feiyang Wang , Philip S. Yu

Recommender systems aim to provide personalized item recommendations by capturing user behaviors derived from their interaction history. Considering that user interactions naturally occur sequentially based on users' intents in mind, user…

信息检索 · 计算机科学 2025-01-14 Yijin Choi , Chiehyeon Lim

Understanding what users like is relatively straightforward; understanding what users dislike, however, remains a challenging and underexplored problem. Research into users' negative preferences has gained increasing importance in modern…

信息检索 · 计算机科学 2026-01-23 Xinda Chen , Jiawei Wu , Yishuang Liu , Jialin Zhu , Shuwen Xiao , Junjun Zheng , Xiangheng Kong , Yuning Jiang

Cross-domain sequential recommendation (CDSR) aims to address the data sparsity problems that exist in traditional sequential recommendation (SR) systems. The existing approaches aim to design a specific cross-domain unit that can transfer…

信息检索 · 计算机科学 2024-06-06 Wujiang Xu , Xuying Ning , Wenfang Lin , Mingming Ha , Qiongxu Ma , Qianqiao Liang , Xuewen Tao , Linxun Chen , Bing Han , Minnan Luo

Unsupervised structure learning in high-dimensional time series data has attracted a lot of research interests. For example, segmenting and labelling high dimensional time series can be helpful in behavior understanding and medical…

机器学习 · 计算机科学 2017-05-25 Hao Liu , Haoli Bai , Lirong He , Zenglin Xu

Deep convolutional neural networks (CNNs) have greatly improved the Face Recognition (FR) performance in recent years. Almost all CNNs in FR are trained on the carefully labeled datasets containing plenty of identities. However, such…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Wei Hu , Yangyu Huang , Fan Zhang , Ruirui Li , Wei Li , Guodong Yuan

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…

信息检索 · 计算机科学 2021-07-28 Mengqi Zhang , Shu Wu , Xueli Yu , Qiang Liu , Liang Wang