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In the era of modern education, addressing cross-school learner diversity is crucial, especially in personalized recommender systems for elective course selection. However, privacy concerns often limit cross-school data sharing, which…

信息检索 · 计算机科学 2024-02-20 Chengyi Ju , Jiannong Cao , Yu Yang , Zhen-Qun Yang , Ho Man Lee

Federated learning aims to train models collaboratively across different clients without the sharing of data for privacy considerations. However, one major challenge for this learning paradigm is the {\em data heterogeneity} problem, which…

机器学习 · 计算机科学 2024-04-09 Yujun Shi , Jian Liang , Wenqing Zhang , Vincent Y. F. Tan , Song Bai

Federated recommendation aims to collect global knowledge by aggregating local models from massive devices, to provide recommendations while ensuring privacy. Current methods mainly leverage aggregation functions invented by federated…

密码学与安全 · 计算机科学 2024-06-07 Honglei Zhang , Haoxuan Li , Jundong Chen , Sen Cui , Kunda Yan , Abudukelimu Wuerkaixi , Xin Zhou , Zhiqi Shen , Yidong Li

Federated Learning (FL) enables collaborative model training without sharing raw data but suffers from limited scalability, high communication costs, and privacy risks due to its centralized architecture. This paper proposes FedSelect-ME, a…

密码学与安全 · 计算机科学 2025-11-05 Hanie Vatani , Reza Ebrahimi Atani

Federated recommender systems (FedRecSys) have emerged as a pivotal solution for privacy-aware recommendations, balancing growing demands for data security and personalized experiences. Current research efforts predominantly concentrate on…

信息检索 · 计算机科学 2025-04-11 Chunxu Zhang , Guodong Long , Zijian Zhang , Zhiwei Li , Honglei Zhang , Qiang Yang , Bo Yang

Federated Reinforcement Learning (FedRL) improves sample efficiency while preserving privacy; however, most existing studies assume homogeneous agents, limiting its applicability in real-world scenarios. This paper investigates FedRL in…

机器学习 · 计算机科学 2025-02-04 Wenzheng Jiang , Ji Wang , Xiongtao Zhang , Weidong Bao , Cheston Tan , Flint Xiaofeng Fan

Federated Learning (FL) is a distributed machine learning strategy, developed for settings where training data is owned by distributed devices and cannot be shared. FL circumvents this constraint by carrying out model training in…

机器学习 · 计算机科学 2025-01-24 Maria Hartmann , Grégoire Danoy , Pascal Bouvry

Due to the highly sensitive nature of certain data in cross-border sharing, collaborative cross-border recommendations and data sharing are often subject to stringent privacy protection regulations, resulting in insufficient data for model…

机器学习 · 计算机科学 2025-05-27 Zhizhong Tan , Jiexin Zheng , Xingxing Yang , Chi Zhang , Weiping Deng , Wenyong Wang

Federated learning (FL) is an important technique for learning models from decentralized data in a privacy-preserving way. Existing FL methods usually uniformly sample clients for local model learning in each round. However, different…

机器学习 · 计算机科学 2023-06-27 Tao Qi , Fangzhao Wu , Lingjuan Lyu , Yongfeng Huang , Xing Xie

Federated learning (FL) enables collaborative training across clients while preserving privacy. While most existing FL methods assume homogeneous model architectures, client heterogeneity in both data and resources makes this assumption…

机器学习 · 计算机科学 2026-03-30 Yuan Yao , Lixu Wang , Jiaqi Wu , Jin Song , Simin Chen , Zehua Wang , Zijian Tian , Wei Chen , Huixia Li , Xiaoxiao Li

Federated recommender systems (FedRecs) have gained significant attention for their potential to protect user's privacy by keeping user privacy data locally and only communicating model parameters/gradients to the server. Nevertheless, the…

信息检索 · 计算机科学 2024-02-01 Liang Qu , Wei Yuan , Ruiqi Zheng , Lizhen Cui , Yuhui Shi , Hongzhi Yin

Federated recommender systems (FedRS) have emerged as a paradigm for protecting user privacy by keeping interaction data on local devices while coordinating model training through a central server. However, most existing federated…

信息检索 · 计算机科学 2026-03-13 Liang Qu , Jianxin Li , Wei Yuan , Shangfei Zheng , Lu Chen , Chengfei Liu , Hongzhi Yin

As privacy protection gains increasing importance, more models are being trained on edge devices and subsequently merged into the central server through Federated Learning (FL). However, current research overlooks the impact of network…

机器学习 · 计算机科学 2025-08-04 Hangyu Li , Hongyue Wu , Guodong Fan , Zhen Zhang , Shizhan Chen , Zhiyong Feng

We envision a mobile edge computing (MEC) framework for machine learning (ML) technologies, which leverages distributed client data and computation resources for training high-performance ML models while preserving client privacy. Toward…

网络与互联网体系结构 · 计算机科学 2020-01-09 Takayuki Nishio , Ryo Yonetani

Federated Learning (FL) enables multiple devices to collaboratively train a shared model while ensuring data privacy. The selection of participating devices in each training round critically affects both the model performance and training…

机器学习 · 计算机科学 2024-05-08 Chunlin Tian , Zhan Shi , Xinpeng Qin , Li Li , Chengzhong Xu

The increasingly stringent data privacy regulations limit the development of person re-identification (ReID) because person ReID training requires centralizing an enormous amount of data that contains sensitive personal information. To…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Weiming Zhuang , Xin Gan , Yonggang Wen , Shuai Zhang

This work considers the category distribution heterogeneity in federated learning. This issue is due to biased labeling preferences at multiple clients and is a typical setting of data heterogeneity. To alleviate this issue, most previous…

机器学习 · 计算机科学 2023-05-31 Rui Ye , Mingkai Xu , Jianyu Wang , Chenxin Xu , Siheng Chen , Yanfeng Wang

Federated learning is a privacy-preserving machine learning technique that learns a shared model across decentralized clients. It can alleviate privacy concerns of personal re-identification, an important computer vision task. In this work,…

计算机视觉与模式识别 · 计算机科学 2020-10-12 Weiming Zhuang , Yonggang Wen , Xuesen Zhang , Xin Gan , Daiying Yin , Dongzhan Zhou , Shuai Zhang , Shuai Yi

The core of the general recommender systems lies in learning high-quality embedding representations of users and items to investigate their positional relations in the feature space. Unfortunately, data sparsity caused by…

信息检索 · 计算机科学 2025-04-24 Yi Zhang , Yiwen Zhang

Recommender systems are widely used in industry to improve user experience. Despite great success, they have recently been criticized for collecting private user data. Federated Learning (FL) is a new paradigm for learning on distributed…

机器学习 · 计算机科学 2022-10-26 Junyi Li , Heng Huang