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The decentralized and privacy-preserving nature of federated learning (FL) makes it vulnerable to backdoor attacks aiming to manipulate the behavior of the resulting model on specific adversary-chosen inputs. However, most existing defenses…

Cryptography and Security · Computer Science 2023-08-11 Siquan Huang , Yijiang Li , Chong Chen , Leyu Shi , Ying Gao

Malicious clients can attack federated learning systems using malicious data, including backdoor samples, during the training phase. The compromised global model will perform well on the validation dataset designed for the task, but a small…

Cryptography and Security · Computer Science 2021-01-18 Chen Wu , Xian Yang , Sencun Zhu , Prasenjit Mitra

We present a partially personalized formulation of Federated Learning (FL) that strikes a balance between the flexibility of personalization and cooperativeness of global training. In our framework, we split the variables into global…

Machine Learning · Computer Science 2023-05-30 Konstantin Mishchenko , Rustem Islamov , Eduard Gorbunov , Samuel Horváth

Recent advances in federated learning have demonstrated its promising capability to learn on decentralized datasets. However, a considerable amount of work has raised concerns due to the potential risks of adversaries participating in the…

Machine Learning · Computer Science 2022-10-25 KiYoon Yoo , Nojun Kwak

Federated learning is an efficient framework designed to facilitate collaborative model training across multiple distributed devices while preserving user data privacy. A significant challenge of federated learning is data-level…

Machine Learning · Computer Science 2024-08-26 Shunxin Guo , Hongsong Wang , Shuxia Lin , Zhiqiang Kou , Xin Geng

Federated Learning (FL) enables decentralized training of machine learning models on distributed data while preserving privacy. However, in real-world FL settings, client data is often non-identically distributed and imbalanced, resulting…

Machine Learning · Computer Science 2025-09-18 Gergely D. Németh , Eros Fanì , Yeat Jeng Ng , Barbara Caputo , Miguel Ángel Lozano , Nuria Oliver , Novi Quadrianto

Privacy, security and data governance constraints rule out a brute force process in the integration of cross-silo data, which inherits the development of the Internet of Things. Federated learning is proposed to ensure that all parties can…

Cryptography and Security · Computer Science 2024-01-23 Dongqi Cai , Tao Fan , Yan Kang , Lixin Fan , Mengwei Xu , Shangguang Wang , Qiang Yang

Backdoor data poisoning is an emerging form of adversarial attack usually against deep neural network image classifiers. The attacker poisons the training set with a relatively small set of images from one (or several) source class(es),…

Machine Learning · Computer Science 2020-10-16 Zhen Xiang , David J. Miller , George Kesidis

Federated learning enables distributed clients to collaborate on training while storing their data locally to protect client privacy. However, due to the heterogeneity of data, models, and devices, the final global model may need to perform…

Machine Learning · Computer Science 2024-06-25 Wolong Xing , Zhenkui Shi , Hongyan Peng , Xiantao Hu , Xianxian Li

Federated learning (FL) enables collaborative model training across distributed clients while preserving data privacy. However, data and system heterogeneity often cause catastrophic forgetting and unbounded drift in model updates, leading…

Machine Learning · Computer Science 2026-04-28 Taehwan Yoon , Bongjun Choi , Wesley De Neve

Federated learning is a distributed and privacy-preserving approach to train a statistical model collaboratively from decentralized data of different parties. However, when datasets of participants are not independent and identically…

Machine Learning · Computer Science 2023-01-24 Li Ju , Tianru Zhang , Salman Toor , Andreas Hellander

Wireless federated learning (WFL) suffers from heterogeneity prevailing in the data distributions, computing powers, and channel conditions of participating devices. This paper presents a new Federated Learning with Adjusted leaRning ratE…

Signal Processing · Electrical Eng. & Systems 2024-04-24 Bingnan Xiao , Jingjing Zhang , Wei Ni , Xin Wang

Federated learning (FL) is gaining increasing attention as an emerging collaborative machine learning approach, particularly in the context of large-scale computing and data systems. However, the fundamental algorithm of FL, Federated…

Cryptography and Security · Computer Science 2025-05-20 Jianyi Zhang , Ziyin Zhou , Yilong Li , Qichao Jin

Federated learning (FL) is a distributed machine learning paradigm that allows clients to collaboratively train a model over their own local data. FL promises the privacy of clients and its security can be strengthened by cryptographic…

Cryptography and Security · Computer Science 2021-09-10 Shulai Zhang , Zirui Li , Quan Chen , Wenli Zheng , Jingwen Leng , Minyi Guo

Federated Learning (FL) is emerging as a promising paradigm of privacy-preserving machine learning, which trains an algorithm across multiple clients without exchanging their data samples. Recent works highlighted several privacy and…

Cryptography and Security · Computer Science 2021-06-15 Yaowei Han , Yang Cao , Masatoshi Yoshikawa

In Federated Learning (FL), models are as fragile as centrally trained models against adversarial examples. However, the adversarial robustness of federated learning remains largely unexplored. This paper casts light on the challenge of…

Machine Learning · Computer Science 2023-02-21 Jie Zhang , Bo Li , Chen Chen , Lingjuan Lyu , Shuang Wu , Shouhong Ding , Chao Wu

In practical federated learning (FL), the large communication overhead between clients and the server is often a significant bottleneck. Gradient compression methods can effectively reduce this overhead, while error feedback (EF) restores…

Machine Learning · Computer Science 2026-02-13 Diying Yang , Yingwei Hou , Weigang Wu

Robust distributed learning algorithms aim to maintain reliable performance despite the presence of misbehaving workers. Such misbehaviors are commonly modeled as Byzantine failures, allowing arbitrarily corrupted communication, or as data…

Machine Learning · Computer Science 2025-10-17 Thomas Boudou , Batiste Le Bars , Nirupam Gupta , Aurélien Bellet

Federated Learning offers a solution for decentralised model training, addressing the difficulties associated with distributed data and privacy in machine learning. However, the fact of data heterogeneity in federated learning frequently…

Machine Learning · Computer Science 2025-09-10 Ozgu Goksu , Nicolas Pugeault

Federated Learning (FL) holds great potential for diverse applications owing to its privacy-preserving nature. However, its convergence is often challenged by non-IID data distributions, limiting its effectiveness in real-world deployments.…

Machine Learning · Computer Science 2025-04-22 Kun Zhai , Yifeng Gao , Difan Zou , Guangnan Ye , Siheng Chen , Xingjun Ma , Yu-Gang Jiang