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Sequential recommendation predicts user preferences over time and has achieved remarkable success. However, the growing length of user interaction sequences and the complex entanglement of evolving user interests and intentions introduce…

Information Retrieval · Computer Science 2025-08-06 Haoran Zhang , Jingtong Liu , Jiangzhou Deng , Junpeng Guo

Cross-domain recommender (CDR) systems aim to transfer knowledge from data-rich domains to data-sparse ones, alleviating sparsity and cold-start issues present in conventional single-domain recommenders. However, many CDR approaches rely on…

Information Retrieval · Computer Science 2026-03-03 Ziyin Xiao , Toyotaro Suzumura

Reference-based image super-resolution (RefSR) is a promising SR branch and has shown great potential in overcoming the limitations of single image super-resolution. While previous state-of-the-art RefSR methods mainly focus on improving…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Lin Zhang , Xin Li , Dongliang He , Fu Li , Yili Wang , Zhaoxiang Zhang

Current state-of-the-art object detectors can have significant performance drop when deployed in the wild due to domain gaps with training data. Unsupervised Domain Adaptation (UDA) is a promising approach to adapt models for new…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Fuxun Yu , Di Wang , Yinpeng Chen , Nikolaos Karianakis , Tong Shen , Pei Yu , Dimitrios Lymberopoulos , Sidi Lu , Weisong Shi , Xiang Chen

In this paper we present a new approach to content-based transfer learning for solving the data sparsity problem in cases when the users' preferences in the target domain are either scarce or unavailable, but the necessary information on…

Machine Learning · Computer Science 2013-05-16 Naseem Biadsy , Lior Rokach , Armin Shmilovici

Cognitive Diagnosis (CD) aims to evaluate students' cognitive states based on their interaction data, enabling downstream applications such as exercise recommendation and personalized learning guidance. However, existing methods often…

Machine Learning · Computer Science 2024-12-09 Fei Liu , Yizhong Zhang , Shuochen Liu , Shengwei Ji , Kui Yu , Le Wu

Time-series representation learning can extract representations from data with temporal dynamics and sparse labels. When labeled data are sparse but unlabeled data are abundant, contrastive learning, i.e., a framework to learn a latent…

Machine Learning · Computer Science 2023-03-03 Heejeong Choi , Pilsung Kang

Accurately predicting future pedestrian trajectories is crucial across various domains. Due to the uncertainty in future pedestrian trajectories, it is important to learn complex spatio-temporal representations in multi-agent scenarios. To…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Pranav Singh Chib , Pravendra Singh

Cross-domain Recommendation (CR) is the task that tends to improve the recommendations in the sparse target domain by leveraging the information from other rich domains. Existing methods of cross-domain recommendation mainly focus on…

Information Retrieval · Computer Science 2024-01-17 Hao Liu , Lei Guo , Lei Zhu , Yongqiang Jiang , Min Gao , Hongzhi Yin

Click-through rate (CTR) prediction is a fundamental technique in recommendation and advertising systems. Recent studies have proved that learning a unified model to serve multiple domains is effective to improve the overall performance.…

Information Retrieval · Computer Science 2022-07-04 Xuanhua Yang , Xiaoyu Peng , Penghui Wei , Shaoguo Liu , Liang Wang , Bo Zheng

In order to develop effective sequential recommenders, a series of sequence representation learning (SRL) methods are proposed to model historical user behaviors. Most existing SRL methods rely on explicit item IDs for developing the…

Information Retrieval · Computer Science 2022-06-14 Yupeng Hou , Shanlei Mu , Wayne Xin Zhao , Yaliang Li , Bolin Ding , Ji-Rong Wen

Sequential recommendation seeks to model the evolution of user interests by capturing temporal user intent and item-level transition patterns. Transformer-based recommenders demonstrate a strong capacity for learning long-range and…

Information Retrieval · Computer Science 2026-04-28 Sijia Li , Min Gao , Zongwei Wang , Zhiyi Liu , Xin Xia , Yi Zhang

In today's digital landscape, Deep Recommender Systems (DRS) play a crucial role in navigating and customizing online content for individual preferences. However, conventional methods, which mainly depend on single recommendation task,…

Information Retrieval · Computer Science 2025-03-03 Xiangyu Zhao , Yichao Wang , Bo Chen , Jingtong Gao , Yuhao Wang , Xiaopeng Li , Pengyue Jia , Qidong Liu , Huifeng Guo , Ruiming Tang

Existing image deraining methods typically rely on single-input, single-output, and single-scale architectures, which overlook the joint multi-scale information between external and internal features. Furthermore, single-domain…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Shun Zou , Yi Zou , Mingya Zhang , Shipeng Luo , Guangwei Gao , Guojun Qi

Recommender systems and search engines serve as foundational elements of online platforms, with the former delivering information proactively and the latter enabling users to seek information actively. Unifying both tasks in a shared model…

Information Retrieval · Computer Science 2025-10-28 Jujia Zhao , Wenjie Wang , Chen Xu , Xiuying Chen , Zhaochun Ren , Suzan Verberne

Recommender systems play a crucial role in mitigating the problem of information overload by suggesting users' personalized items or services. The vast majority of traditional recommender systems consider the recommendation procedure as a…

Information Retrieval · Computer Science 2018-08-13 Xiangyu Zhao , Liang Zhang , Zhuoye Ding , Long Xia , Jiliang Tang , Dawei Yin

Sequential recommendation (SR) aims to predict a user's next item preference by modeling historical interaction sequences. Recent advances often integrate frequency-domain modules to compensate for self-attention's low-pass nature by…

Information Retrieval · Computer Science 2025-11-17 Peng He , Yao Liu , Yanglei Gan , Run Lin , Tingting Dai , Qiao Liu , Xuexin Li

Cross-Domain Recommendation (CDR) has been popularly studied to utilize different domain knowledge to solve the data sparsity and cold-start problem in recommender systems. In this paper, we focus on the Review-based Non-overlapped…

Information Retrieval · Computer Science 2022-02-11 Weiming Liu , Xiaolin Zheng , Mengling Hu , Chaochao Chen

Negative sampling is significant for training sequential recommendation models under implicit feedback. The predominant strategy, self-guided hard negative sampling, selects negatives based on the model's current state but suffers from…

Information Retrieval · Computer Science 2026-05-20 Yuanzi Li , Lingjie Wang , Jingyu Zhao , Zihang Tian , Yuhan Wang , Lei Wang , Xu Chen

Unlike traditional learning to rank models that depend on hand-crafted features, neural representation learning models learn higher level features for the ranking task by training on large datasets. Their ability to learn new features…

Information Retrieval · Computer Science 2018-05-10 Daniel Cohen , Bhaskar Mitra , Katja Hofmann , W. Bruce Croft