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In 3D action recognition, there exists rich complementary information between skeleton modalities. Nevertheless, how to model and utilize this information remains a challenging problem for self-supervised 3D action representation learning.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Yunyao Mao , Wengang Zhou , Zhenbo Lu , Jiajun Deng , Houqiang Li

In recent years, Cross-Domain Recommendation (CDR) has drawn significant attention, which utilizes user data from multiple domains to enhance the recommendation performance. However, current CDR methods require sharing user data across…

Machine Learning · Computer Science 2024-09-04 Hongyu Zhang , Dongyi Zheng , Lin Zhong , Xu Yang , Jiyuan Feng , Yunqing Feng , Qing Liao

Cross-market recommendation (CMR) aims to enhance recommendation performance across multiple markets. Due to its inherent characteristics, i.e., data isolation, non-overlapping users, and market heterogeneity, CMR introduces unique…

Information Retrieval · Computer Science 2026-04-16 Jundong Chen , Honglei Zhang , Xiangmou Qu , Haoxuan Li , Han Yu , Yidong Li

Cold-start recommendation is one of the major challenges faced by recommender systems (RS). Herein, we focus on the user cold-start problem. Recently, methods utilizing side information or meta-learning have been used to model cold-start…

Information Retrieval · Computer Science 2023-09-28 Xiangyu Zhang , Zongqiang Kuang , Zehao Zhang , Fan Huang , Xianfeng Tan

In this paper, we consider cross-domain imitation learning (CDIL) in which an agent in a target domain learns a policy to perform well in the target domain by observing expert demonstrations in a source domain without accessing any reward…

Machine Learning · Computer Science 2020-09-28 Sungho Choi , Seungyul Han , Woojun Kim , Youngchul Sung

Traditional recommender systems aim to estimate a user's rating to an item based on observed ratings from the population. As with all observational studies, hidden confounders, which are factors that affect both item exposures and user…

Machine Learning · Computer Science 2022-11-22 Yaochen Zhu , Jing Yi , Jiayi Xie , Zhenzhong 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

Bundle recommendation aims to recommend a bundle of related items to users, which can satisfy the users' various needs with one-stop convenience. Recent methods usually take advantage of both user-bundle and user-item interactions…

Information Retrieval · Computer Science 2023-01-18 Yunshan Ma , Yingzhi He , An Zhang , Xiang Wang , Tat-Seng Chua

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…

Information Retrieval · Computer Science 2023-09-25 Qidong Liu , Fan Yan , Xiangyu Zhao , Zhaocheng Du , Huifeng Guo , Ruiming Tang , Feng Tian

Cross-scene image classification aims to transfer prior knowledge of ground materials to annotate regions with different distributions and reduce hand-crafted cost in the field of remote sensing. However, existing approaches focus on…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Zhu Han , Ce Zhang , Lianru Gao , Zhiqiang Zeng , Michael K. Ng , Bing Zhang , Jocelyn Chanussot

Click-Through Rate (CTR) prediction is one of the main tasks of the recommendation system, which is conducted by a user for different items to give the recommendation results. Cross-domain CTR prediction models have been proposed to…

Information Retrieval · Computer Science 2023-05-23 Menglin Kong , Muzhou Hou , Shaojie Zhao , Feng Liu , Ri Su , Yinghao Chen

Reranking plays a crucial role in modern multi-stage recommender systems by rearranging the initial ranking list to model interplay between items. Considering the inherent challenges of reranking such as combinatorial searching space, some…

Information Retrieval · Computer Science 2023-08-15 Xiao Lin , Xiaokai Chen , Chenyang Wang , Hantao Shu , Linfeng Song , Biao Li , Peng jiang

Deep learning has shown remarkable performance in integrating multimodal data for survival prediction. However, existing multimodal methods mainly focus on single cancer types and overlook the challenge of generalization across cancers. In…

Computer Vision and Pattern Recognition · Computer Science 2025-09-01 Jia-Xuan Jiang , Jiashuai Liu , Hongtao Wu , Yifeng Wu , Zhong Wang , Qi Bi , Yefeng Zheng

With the development of multimedia systems, multimodal recommendations are playing an essential role, as they can leverage rich contexts beyond interactions. Existing methods mainly regard multimodal information as an auxiliary, using them…

Information Retrieval · Computer Science 2024-08-02 Yifan Liu , Kangning Zhang , Xiangyuan Ren , Yanhua Huang , Jiarui Jin , Yingjie Qin , Ruilong Su , Ruiwen Xu , Yong Yu , Weinan Zhang

Cross-modal feature extraction and integration have led to steady performance improvements in few-shot learning tasks due to generating richer features. However, existing multi-modal object detection (MM-OD) methods degrade when facing…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Zeyu Shangguan , Daniel Seita , Mohammad Rostami

Session-based recommendation is devoted to characterizing preferences of anonymous users based on short sessions. Existing methods mostly focus on mining limited item co-occurrence patterns exposed by item ID within sessions, while ignoring…

Information Retrieval · Computer Science 2023-10-02 Xiaokun Zhang , Bo Xu , Fenglong Ma , Chenliang Li , Liang Yang , Hongfei Lin

Sequential recommendation has attracted increasing attention due to its ability to accurately capture the dynamic changes in user interests. We have noticed that generative models, especially diffusion models, which have achieved…

Information Retrieval · Computer Science 2024-09-18 Wenjia Xie , Rui Zhou , Hao Wang , Tingjia Shen , Enhong Chen

Recommendation models are vital in delivering personalized user experiences by leveraging the correlation between multiple input features. However, deep learning-based recommendation models often face challenges due to evolving user…

Information Retrieval · Computer Science 2023-08-30 Muhammad Adnan , Yassaman Ebrahimzadeh Maboud , Divya Mahajan , Prashant J. Nair

Collaborative Filtering (CF) is a foundational approach in recommender systems, but it struggles with challenges such as data sparsity and the cold-start problem. Cross-Domain Recommendation (CDR) has emerged as a promising solution by…

Information Retrieval · Computer Science 2025-09-18 Jeongeun Lee , Seongku Kang , Won-Yong Shin , Jeongwhan Choi , Noseong Park , Dongha Lee

Cross-domain recommendation can alleviate the data sparsity problem in recommender systems. To transfer the knowledge from one domain to another, one can either utilize the neighborhood information or learn a direct mapping function.…

Machine Learning · Computer Science 2019-10-21 Zhiwei Liu , Lei Zheng , Jiawei Zhang , Jiayu Han , Philip S. Yu
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