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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…

Information Retrieval · Computer Science 2025-04-15 Kowei Shih , Yi Han , Li Tan

Recommender systems are designed to learn user preferences from observed feedback and comprise many fundamental tasks, such as rating prediction and post-click conversion rate (pCVR) prediction. However, the observed feedback usually suffer…

Information Retrieval · Computer Science 2024-02-09 Jun Wang , Haoxuan Li , Chi Zhang , Dongxu Liang , Enyun Yu , Wenwu Ou , Wenjia Wang

Contrastive learning has gained popularity and pushes state-of-the-art performance across numerous large-scale benchmarks. In contrastive learning, the contrastive loss function plays a pivotal role in discerning similarities between…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Haojin Deng , Yimin Yang

Recommender systems are indispensable in the realm of online applications, and sequential recommendation has enjoyed considerable prevalence due to its capacity to encapsulate the dynamic shifts in user interests. However, previous…

Information Retrieval · Computer Science 2024-04-16 Junzhe Jiang , Shang Qu , Mingyue Cheng , Qi Liu , Zhiding Liu , Hao Zhang , Rujiao Zhang , Kai Zhang , Rui Li , Jiatong Li , Min Gao

Transformer and its variants are a powerful class of architectures for sequential recommendation, owing to their ability of capturing a user's dynamic interests from their past interactions. Despite their success, Transformer-based models…

Information Retrieval · Computer Science 2023-08-22 Vivian Lai , Huiyuan Chen , Chin-Chia Michael Yeh , Minghua Xu , Yiwei Cai , Hao Yang

Graph Convolutional Networks (GCNs) has demonstrated promising results for recommender systems, as they can effectively leverage high-order relationship. However, these methods usually encounter data sparsity issue in real-world scenarios.…

Information Retrieval · Computer Science 2023-09-21 Qian Zhao , Zhengwei Wu , Zhiqiang Zhang , Jun Zhou

Representation learning has significantly been developed with the advance of contrastive learning methods. Most of those methods have benefited from various data augmentations that are carefully designated to maintain their identities so…

Computer Vision and Pattern Recognition · Computer Science 2022-01-24 Xiao Wang , Guo-Jun Qi

We introduce a new sequential transformer reinforcement learning architecture RLT4Rec and demonstrate that it achieves excellent performance in a range of item recommendation tasks. RLT4Rec uses a relatively simple transformer architecture…

Information Retrieval · Computer Science 2024-12-11 Dilina Chandika Rajapakse , Douglas Leith

Recently, there has been growing interest in developing the next-generation recommender systems (RSs) based on pretrained large language models (LLMs). However, the semantic gap between natural language and recommendation tasks is still not…

Information Retrieval · Computer Science 2024-02-23 Yaochen Zhu , Liang Wu , Qi Guo , Liangjie Hong , Jundong Li

Recently, large language models (LLMs) have shown great potential in recommender systems, either improving existing recommendation models or serving as the backbone. However, there exists a large semantic gap between LLMs and recommender…

Information Retrieval · Computer Science 2024-04-22 Bowen Zheng , Yupeng Hou , Hongyu Lu , Yu Chen , Wayne Xin Zhao , Ming Chen , Ji-Rong Wen

Deep neural networks have emerged as a powerful technique for learning representations from user-item interaction data in collaborative filtering (CF) for recommender systems. However, many existing methods heavily rely on unique user and…

Information Retrieval · Computer Science 2025-10-21 Xubin Ren , Chao Huang

Transformer-based sequential recommendation (TSR) models have shown superior performance in recommendation systems, where the quality of item representations plays a crucial role. Classical representation methods integrate item features…

Information Retrieval · Computer Science 2025-04-22 Hao Deng , Haibo Xing , Kanefumi Matsuyama , Yulei Huang , Jinxin Hu , Hong Wen , Jia Xu , Zulong Chen , Yu Zhang , Xiaoyi Zeng , Jing Zhang

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

Learning sentence embeddings in an unsupervised manner is fundamental in natural language processing. Recent common practice is to couple pre-trained language models with unsupervised contrastive learning, whose success relies on augmenting…

Computation and Language · Computer Science 2022-10-20 Qiyu Wu , Chongyang Tao , Tao Shen , Can Xu , Xiubo Geng , Daxin Jiang

The success of Transformer-based models has encouraged many researchers to learn CAD models using sequence-based approaches. However, learning CAD models is still a challenge, because they can be represented as complex shapes with long…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Minseop Jung , Minseong Kim , Jibum Kim

User-item interaction histories are pivotal for sequential recommendation systems but often include noise, such as unintended clicks or actions that fail to reflect genuine user preferences. To address this, we propose Learned Item…

Information Retrieval · Computer Science 2025-11-27 Haidong Xin , Zhenghao Liu , Sen Mei , Yukun Yan , Shi Yu , Shuo Wang , Zulong Chen , Yu Gu , Ge Yu , Chenyan Xiong

The modern recommender systems are facing an increasing challenge of modelling and predicting the dynamic and context-rich user preferences. Traditional collaborative filtering and content-based methods often struggle to capture the…

Information Retrieval · Computer Science 2025-07-21 Yitong Li , Raoul Grasman

In the era of advancing information technology, recommender systems have emerged as crucial tools for dealing with information overload. However, traditional recommender systems still have limitations in capturing the dynamic evolution of…

Information Retrieval · Computer Science 2025-04-09 Mingjian Fu , Hengsheng Chen , Dongchun Jiang , Yanchao Tan

Sequential recommender systems rank relevant items by modeling a user's interaction history and computing the inner product between the resulting user representation and stored item embeddings. To avoid the significant memory overhead of…

In this paper, we present CLCC, a novel contrastive learning framework for color constancy. Contrastive learning has been applied for learning high-quality visual representations for image classification. One key aspect to yield useful…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Yi-Chen Lo , Chia-Che Chang , Hsuan-Chao Chiu , Yu-Hao Huang , Chia-Ping Chen , Yu-Lin Chang , Kevin Jou