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Federated Learning (FL) enables multiple clients to collaboratively train a shared model without exposing local data. However, backdoor attacks pose a significant threat to FL. These attacks aim to implant a stealthy trigger into the global…

Machine Learning · Computer Science 2026-01-06 Chenyu Hu , Qiming Hu , Sinan Chen , Nianyu Li , Mingyue Zhang , Jialong Li

Federated Learning (FL) enables the training of Deep Learning models without centrally collecting possibly sensitive raw data. The most used algorithms for FL are parameter-averaging based schemes (e.g., Federated Averaging) that, however,…

Machine Learning · Computer Science 2025-04-08 Alessio Mora , Irene Tenison , Paolo Bellavista , Irina Rish

Federated Learning (FL) is a privacy-preserving distributed machine learning technique that enables individual clients (e.g., user participants, edge devices, or organizations) to train a model on their local data in a secure environment…

Cryptography and Security · Computer Science 2024-02-26 Waris Gill , Ali Anwar , Muhammad Ali Gulzar

Federated Learning (FL) is an emerging distributed learning paradigm under privacy constraint. Data heterogeneity is one of the main challenges in FL, which results in slow convergence and degraded performance. Most existing approaches only…

Machine Learning · Computer Science 2023-10-27 Lin Zhang , Li Shen , Liang Ding , Dacheng Tao , Ling-Yu Duan

Federated learning (FL) is a privacy-preserving machine learning paradigm in which the server periodically aggregates local model parameters from clients without assembling their private data. Constrained communication and personalization…

Machine Learning · Computer Science 2023-11-10 Zhiyuan Wu , Sheng Sun , Yuwei Wang , Min Liu , Quyang Pan , Junbo Zhang , Zeju Li , Qingxiang Liu

In real-world applications, Federated Learning (FL) meets two challenges: (1) scalability, especially when applied to massive IoT networks; and (2) how to be robust against an environment with heterogeneous data. Realizing the first…

Machine Learning · Computer Science 2022-10-03 Minh-Duong Nguyen , Quoc-Viet Pham , Dinh Thai Hoang , Long Tran-Thanh , Diep N. Nguyen , Won-Joo Hwang

Federated learning (FL) is inherently susceptible to privacy breaches and poisoning attacks. To tackle these challenges, researchers have separately devised secure aggregation mechanisms to protect data privacy and robust aggregation…

Cryptography and Security · Computer Science 2025-02-11 Runhua Xu , Shiqi Gao , Chao Li , James Joshi , Jianxin Li

Heterogeneity of data distributed across clients limits the performance of global models trained through federated learning, especially in the settings with highly imbalanced class distributions of local datasets. In recent years,…

Machine Learning · Computer Science 2023-04-11 Huancheng Chen , Johnny , Wang , Haris Vikalo

Knowledge distillation (KD) can enable collaborative learning among distributed clients that have different model architectures and do not share their local data and model parameters with others. Each client updates its local model using…

Machine Learning · Computer Science 2024-06-04 Pengchao Han , Xingyan Shi , Jianwei Huang

Federated learning is considered as an effective privacy-preserving learning mechanism that separates the client's data and model training process. However, federated learning is still under the risk of privacy leakage because of the…

Machine Learning · Computer Science 2022-06-03 Yuxuan Wan , Han Xu , Xiaorui Liu , Jie Ren , Wenqi Fan , Jiliang Tang

Federated Learning is vulnerable to adversarial manipulation, where malicious clients can inject poisoned updates to influence the global model's behavior. While existing defense mechanisms have made notable progress, they fail to protect…

Machine Learning · Computer Science 2025-04-29 Georgios Syros , Anshuman Suri , Farinaz Koushanfar , Cristina Nita-Rotaru , Alina Oprea

Continual learning, involving sequential training on diverse tasks, often faces catastrophic forgetting. While knowledge distillation-based approaches exhibit notable success in preventing forgetting, we pinpoint a limitation in their…

Machine Learning · Computer Science 2024-05-17 Zenglin Shi , Pei Liu , Tong Su , Yunpeng Wu , Kuien Liu , Yu Song , Meng Wang

In federated learning, a strong global model is collaboratively learned by aggregating clients' locally trained models. Although this precludes the need to access clients' data directly, the global model's convergence often suffers from…

Machine Learning · Computer Science 2022-11-30 Gihun Lee , Minchan Jeong , Yongjin Shin , Sangmin Bae , Se-Young Yun

With the rapid development of low-cost consumer electronics and cloud computing, Internet-of-Things (IoT) devices are widely adopted for supporting next-generation distributed systems such as smart cities and industrial control systems. IoT…

Cryptography and Security · Computer Science 2024-01-23 Jiyuan Shen , Wenzhuo Yang , Zhaowei Chu , Jiani Fan , Dusit Niyato , Kwok-Yan Lam

Federated learning enables learning from decentralized data sources without compromising privacy, which makes it a crucial technique. However, it is vulnerable to model poisoning attacks, where malicious clients interfere with the training…

Cryptography and Security · Computer Science 2023-07-19 Sungwon Park , Sungwon Han , Fangzhao Wu , Sundong Kim , Bin Zhu , Xing Xie , Meeyoung Cha

Dataset Distillation (DD) is a powerful technique for reducing large datasets into compact, representative synthetic datasets, accelerating Machine Learning training. However, traditional DD methods operate in a centralized manner, which…

Cryptography and Security · Computer Science 2025-03-07 Marco Arazzi , Mert Cihangiroglu , Serena Nicolazzo , Antonino Nocera

Machine learning makes multimedia data (e.g., images) more attractive, however, multimedia data is usually distributed and privacy sensitive. Multiple distributed multimedia clients can resort to federated learning (FL) to jointly learn a…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Hong Huang , Xinyu Lei , Tao Xiang

Federated Learning (FL) is a machine learning paradigm where many local nodes collaboratively train a central model while keeping the training data decentralized. This is particularly relevant for clinical applications since patient data…

Vertical Federated Learning (VFL) is a category of Federated Learning in which models are trained collaboratively among parties with vertically partitioned data. Typically, in a VFL scenario, the labels of the samples are kept private from…

Machine Learning · Computer Science 2025-01-27 Marco Arazzi , Serena Nicolazzo , Antonino Nocera

Federated learning (FL) has emerged as a transformative training paradigm, particularly invaluable in privacy-sensitive domains like healthcare. However, client heterogeneity in data, computing power, and tasks poses a significant…

Machine Learning · Computer Science 2024-10-01 Huidong Tang , Chen Li , Huachong Yu , Sayaka Kamei , Yasuhiko Morimoto