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Recommender systems have advanced markedly over the past decade by transforming each user/item into a dense embedding vector with deep learning models. At industrial scale, embedding tables constituted by such vectors of all users/items…

Information Retrieval · Computer Science 2026-04-21 Runhao Jiang , Renchi Yang , Donghao Wu

Recommendation fairness has recently attracted much attention. In the real world, recommendation systems are driven by user behavior, and since users with the same sensitive feature (e.g., gender and age) tend to have the same patterns,…

Information Retrieval · Computer Science 2025-07-16 Yang Liu , Feng Wu , Xuefang Zhu

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

The problem of session-based recommendation aims to predict user next actions based on session histories. Previous methods models session histories into sequences and estimate user latent features by RNN and GNN methods to make…

Information Retrieval · Computer Science 2020-08-07 Bo Huang , Ye Bi , Zhenyu Wu , Jianming Wang , Jing Xiao

Generative retrieval has recently emerged as a promising approach to sequential recommendation, framing candidate item retrieval as an autoregressive sequence generation problem. However, existing generative methods typically focus solely…

Information Retrieval · Computer Science 2024-07-04 Ye Wang , Jiahao Xun , Minjie Hong , Jieming Zhu , Tao Jin , Wang Lin , Haoyuan Li , Linjun Li , Yan Xia , Zhou Zhao , Zhenhua Dong

Federated learning (FL), as a type of collaborative machine learning framework, is capable of preserving private data from mobile terminals (MTs) while training the data into useful models. Nevertheless, from a viewpoint of information…

Machine Learning · Computer Science 2021-02-01 Kang Wei , Jun Li , Ming Ding , Chuan Ma , Hang Su , Bo Zhang , H. Vincent Poor

Multifaceted user modeling aims to uncover fine-grained patterns and learn representations from user data, revealing their diverse interests and characteristics, such as profile, preference, and personality. Recent studies on foundation…

Information Retrieval · Computer Science 2024-12-24 Chunxu Zhang , Guodong Long , Hongkuan Guo , Zhaojie Liu , Guorui Zhou , Zijian Zhang , Yang Liu , Bo Yang

Mobile devices and the immense amount and variety of data they generate are key enablers of machine learning (ML)-based applications. Traditional ML techniques have shifted toward new paradigms such as federated (FL) and split learning (SL)…

Machine Learning · Computer Science 2022-07-06 Pranvera Kortoçi , Yilei Liang , Pengyuan Zhou , Lik-Hang Lee , Abbas Mehrabi , Pan Hui , Sasu Tarkoma , Jon Crowcroft

Recommender systems often rely on graph-based filters, such as normalized item-item adjacency matrices and low-pass filters. While effective, the centralized computation of these components raises concerns about privacy, security, and the…

Information Retrieval · Computer Science 2025-01-29 Julien Nicolas , César Sabater , Mohamed Maouche , Sonia Ben Mokhtar , Mark Coates

It plays a fundamental role to compactly represent the visual information towards the optimization of the ultimate utility in myriad visual data centered applications. With numerous approaches proposed to efficiently compress the texture…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Shurun Wang , Shiqi Wang , Wenhan Yang , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

E-commerce companies have to face abnormal sellers who sell potentially-risky products. Typically, the risk can be identified by jointly considering product content (e.g., title and image) and seller behavior. This work focuses on behavior…

Computation and Language · Computer Science 2021-06-15 Runshi Liu , Pengda Qin , Yuhong Li , Weigao Wen , Dong Li , Kefeng Deng , Qiang Wu

3D point-cloud-based perception is a challenging but crucial computer vision task. A point-cloud consists of a sparse, unstructured, and unordered set of points. To understand a point-cloud, previous point-based methods, such as PointNet++,…

Robotics · Computer Science 2021-03-25 Chenfeng Xu , Bohan Zhai , Bichen Wu , Tian Li , Wei Zhan , Peter Vajda , Kurt Keutzer , Masayoshi Tomizuka

In recommendation systems, utilizing the user interaction history as sequential information has resulted in great performance improvement. However, in many online services, user interactions are commonly grouped by sessions that presumably…

Information Retrieval · Computer Science 2022-05-23 Jinseok Seol , Youngrok Ko , Sang-goo Lee

Recent years have witnessed the prevailing progress of Generative Adversarial Networks (GANs) in image-to-image translation. However, the success of these GAN models hinges on ponderous computational costs and labor-expensive training data.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Yuxi Ren , Jie Wu , Peng Zhang , Manlin Zhang , Xuefeng Xiao , Qian He , Rui Wang , Min Zheng , Xin Pan

Recommendation systems are essential tools in modern e-commerce, facilitating personalized user experiences by suggesting relevant products. Recent advancements in generative models have demonstrated potential in enhancing recommendation…

Information Retrieval · Computer Science 2025-11-25 Zida Liang , Changfa Wu , Dunxian Huang , Weiqiang Sun , Ziyang Wang , Yuliang Yan , Jian Wu , Yuning Jiang , Bo Zheng , Ke Chen , Silu Zhou , Yu Zhang

Usage data of a group of users distributed across a number of categories, such as songs, movies, webpages, links, regular household products, mobile apps, games, etc. can be ultra-high dimensional and massive in size. More often this kind…

Machine Learning · Computer Science 2023-05-30 Animesh Mitra , Saswata Sahoo , Soumyabrata Dey

Tissue segmentation is the mainstay of pathological examination, whereas the manual delineation is unduly burdensome. To assist this time-consuming and subjective manual step, researchers have devised methods to automatically segment…

Image and Video Processing · Electrical Eng. & Systems 2022-08-08 Yang Nan , Peng Tang , Guyue Zhang , Caihong Zeng , Zhihong Liu , Zhifan Gao , Heye Zhang , Guang Yang

Learning user sequence behaviour embedding is very sophisticated and challenging due to the complicated feature interactions over time and high dimensions of user features. Recent emerging foundation models, e.g., BERT and its variants,…

Machine Learning · Computer Science 2022-07-12 Caigao Jiang , Siqiao Xue , James Zhang , Lingyue Liu , Zhibo Zhu , Hongyan Hao

Convolutional Neural Networks are widely used to process spatial scenes, but their computational cost is fixed and depends on the structure of the network used. There are methods to reduce the cost by compressing networks or varying its…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Sang-ho Lee , Simyung Chang , Nojun Kwak

Segmentation of unseen industrial parts is essential for autonomous industrial systems. However, industrial components are texture-less, reflective, and often found in cluttered and unstructured environments with heavy occlusion, which…

Computer Vision and Pattern Recognition · Computer Science 2020-06-03 Seunghyeok Back , Jongwon Kim , Raeyoung Kang , Seungjun Choi , Kyoobin Lee