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Relevance and diversity are both crucial criteria for an effective search system. In this paper, we propose a unified learning framework for simultaneously optimizing both relevance and diversity. Specifically, the problem is formalized as…

Information Retrieval · Computer Science 2015-04-21 Yadong Zhu , Yanyan Lan , Jiafeng Guo , Xueqi Cheng

Recommender systems usually rely on observed user interaction data to build personalized recommendation models, assuming that the observed data reflect user interest. However, user interacting with an item may also due to conformity, the…

Information Retrieval · Computer Science 2023-02-09 Weiqi Zhao , Dian Tang , Xin Chen , Dawei Lv , Daoli Ou , Biao Li , Peng Jiang , Kun Gai

Sequential recommendation (SR) learns from the temporal dynamics of user-item interactions to predict the next ones. Fairness-aware recommendation mitigates a variety of algorithmic biases in the learning of user preferences. This paper…

Information Retrieval · Computer Science 2022-05-03 Cheng-Te Li , Cheng Hsu , Yang Zhang

Visible-Infrared Person Re-Identification (VI-ReID) is a challenging task due to the large modality discrepancy between visible and infrared images, which complicates the alignment of their features into a suitable common space. Moreover,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Neng Dong , Shuanglin Yan , Liyan Zhang , Jinhui Tang

Social recommender systems have drawn a lot of attention in many online web services, because of the incorporation of social information between users in improving recommendation results. Despite the significant progress made by existing…

Information Retrieval · Computer Science 2023-03-15 Lianghao Xia , Yizhen Shao , Chao Huang , Yong Xu , Huance Xu , Jian Pei

Sequential recommendation aims to capture user preferences by modeling sequential patterns in user-item interactions. However, these models are often influenced by noise such as accidental interactions, leading to suboptimal performance.…

Information Retrieval · Computer Science 2025-10-07 Tongzhou Wu , Yuhao Wang , Maolin Wang , Chi Zhang , Xiangyu Zhao

User review data is helpful in alleviating the data sparsity problem in many recommender systems. In review-based recommendation methods, review data is considered as auxiliary information that can improve the quality of learned user/item…

Information Retrieval · Computer Science 2022-09-07 Yuyang Ren , Haonan Zhang , Qi Li , Luoyi Fu , Jiaxin Ding , Xinde Cao , Xinbing Wang , Chenghu Zhou

Large-scale online marketplaces and recommender systems serve as critical technological support for e-commerce development. In industrial recommender systems, features play vital roles as they carry information for downstream models.…

Information Retrieval · Computer Science 2026-02-24 Xianquan Wang , Zhaocheng Du , Jieming Zhu , Qinglin Jia , Zhenhua Dong , Kai Zhang

Recommendation systems capable of providing diverse sets of results are a focus of increasing importance, with motivations ranging from fairness to novelty and other aspects of optimizing user experience. One form of diversity of recent…

Data Structures and Algorithms · Computer Science 2024-07-15 Jon Kleinberg , Emily Ryu , Éva Tardos

Recommender systems play important roles in various applications such as e-commerce, social media, etc. Conventional recommendation methods usually model the collaborative signals within the tabular representation space. Despite the…

Information Retrieval · Computer Science 2024-06-05 Kounianhua Du , Jizheng Chen , Jianghao Lin , Yunjia Xi , Hangyu Wang , Xinyi Dai , Bo Chen , Ruiming Tang , Weinan Zhang

Social recommendations utilize social relations to enhance the representation learning for recommendations. Most social recommendation models unify user representations for the user-item interactions (collaborative domain) and social…

Information Retrieval · Computer Science 2023-10-04 Jiahao Wu , Wenqi Fan , Jingfan Chen , Shengcai Liu , Qing Li , Ke Tang

Users of industrial recommender systems are normally suggesteda list of items at one time. Ideally, such list-wise recommendationshould provide diverse and relevant options to the users. However, in practice, list-wise recommendation is…

Information Retrieval · Computer Science 2020-04-22 Yichao Wang , Xiangyu Zhang , Zhirong Liu , Zhenhua Dong , Xinhua Feng , Ruiming Tang , Xiuqiang He

Disentangled representation learning aims to map independent factors of variation to independent representation components. On one hand, purely unsupervised approaches have proven successful on fully disentangled synthetic data, but fail to…

Machine Learning · Computer Science 2026-01-30 Alexandre Myara , Nicolas Bourriez , Thomas Boyer , Thomas Lemercier , Ihab Bendidi , Auguste Genovesio

Multi-behavioral recommender systems have emerged as a solution to address data sparsity and cold-start issues by incorporating auxiliary behaviors alongside target behaviors. However, existing models struggle to accurately capture varying…

Information Retrieval · Computer Science 2024-04-18 Zhiyong Cheng , Jianhua Dong , Fan Liu , Lei Zhu , Xun Yang , Meng Wang

Multimodal Sentiment Analysis (MSA) leverages heterogeneous modalities, such as language, vision, and audio, to enhance the understanding of human sentiment. While existing models often focus on extracting shared information across…

Machine Learning · Computer Science 2025-04-10 Pan Wang , Qiang Zhou , Yawen Wu , Tianlong Chen , Jingtong Hu

Deep Recommender Systems (DRS) are increasingly dependent on a large number of feature fields for more precise recommendations. Effective feature selection methods are consequently becoming critical for further enhancing the accuracy and…

Information Retrieval · Computer Science 2024-06-21 Pengyue Jia , Yejing Wang , Zhaocheng Du , Xiangyu Zhao , Yichao Wang , Bo Chen , Wanyu Wang , Huifeng Guo , Ruiming Tang

Feed recommendation systems, which recommend a sequence of items for users to browse and interact with, have gained significant popularity in practical applications. In feed products, users tend to browse a large number of items in…

Information Retrieval · Computer Science 2023-05-23 Yue Xu , Hao Chen , Zefan Wang , Jianwen Yin , Qijie Shen , Dimin Wang , Feiran Huang , Lixiang Lai , Tao Zhuang , Junfeng Ge , Xia Hu

Recently, video-based person re-identification (re-ID) has drawn increasing attention in compute vision community because of its practical application prospects. Due to the inaccurate person detections and pose changes, pedestrian…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Guoqing Zhang , Yuhao Chen , Yang Dai , Yuhui Zheng , Yi Wu

Multiview data contain information from multiple modalities and have potentials to provide more comprehensive features for diverse machine learning tasks. A fundamental question in multiview analysis is what is the additional information…

Machine Learning · Computer Science 2021-05-18 Feng Bao

Empowered by semantic-rich content information, multimedia recommendation has emerged as a potent personalized technique. Current endeavors center around harnessing multimedia content to refine item representation or uncovering latent…

Information Retrieval · Computer Science 2025-01-22 Yonghui Yang , Le Wu , Zhuangzhuang He , Zhengwei Wu , Richang Hong , Meng Wang