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Federated learning provides a privacy-preserving manner to collaboratively train models on data distributed over multiple local clients via the coordination of a global server. In this paper, we focus on label distribution skew in federated…

Machine Learning · Computer Science 2024-09-23 Jianghu Lu , Shikun Li , Kexin Bao , Pengju Wang , Zhenxing Qian , Shiming Ge

Federated Learning (FL) enables collaborative model training without centralizing client data, making it attractive for privacy-sensitive domains. While existing approaches employ cryptographic techniques such as homomorphic encryption,…

Cryptography and Security · Computer Science 2026-02-09 Sahar Ghoflsaz Ghinani , Elaheh Sadredini

Federated learning (FL) is a privacy-preserving machine learning framework that enables multiple nodes to train models on their local data and periodically average weight updates to benefit from other nodes' training. Each node's goal is to…

Machine Learning · Computer Science 2025-06-16 Ethan Wilson , Kai Yue , Chau-Wai Wong , Huaiyu Dai

Federated Learning (FL) facilitates collaborative training of a global model whose performance is boosted by private data owned by distributed clients, without compromising data privacy. Yet the wide applicability of FL is hindered by…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-31 Xinyuan Zhao , Hanlin Gu , Lixin Fan , Yuxing Han , Qiang Yang

Federated Learning (FL) has emerged as a transformative paradigm in the field of distributed machine learning, enabling multiple clients such as mobile devices, edge nodes, or organizations to collaboratively train a shared global model…

Machine Learning · Computer Science 2026-03-09 Ratun Rahman

Federated Learning (FL) is gaining popularity as a distributed learning framework that only shares model parameters or gradient updates and keeps private data locally. However, FL is at risk of privacy leakage caused by privacy inference…

Machine Learning · Computer Science 2024-09-17 Kangyang Luo , Shuai Wang , Xiang Li , Yunshi Lan , Ming Gao , Jinlong Shu

Federated Learning (FL) is a collaborative scheme to train a learning model across multiple participants without sharing data. While FL is a clear step forward towards enforcing users' privacy, different inference attacks have been…

Cryptography and Security · Computer Science 2024-03-04 Théo Jourdan , Antoine Boutet , Carole Frindel

Federated Learning (FL) is an evolving machine learning method in which multiple clients participate in collaborative learning without sharing their data with each other and the central server. In real-world applications such as hospitals…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Hussain Ahmad Madni , Rao Muhammad Umer , Gian Luca Foresti

Split Federated Learning (SFL) has emerged as an efficient alternative to traditional Federated Learning (FL) by reducing client-side computation through model partitioning. However, exchanging of intermediate activations and model updates…

Machine Learning · Computer Science 2026-01-01 Xingchen Wang , Feijie Wu , Chenglin Miao , Tianchun Li , Haoyu Hu , Qiming Cao , Jing Gao , Lu Su

Federated learning (FL) allows a server to learn a machine learning (ML) model across multiple decentralized clients that privately store their own training data. In contrast with centralized ML approaches, FL saves computation to the…

Cryptography and Security · Computer Science 2020-12-15 Alberto Blanco-Justicia , Josep Domingo-Ferrer , Sergio Martínez , David Sánchez , Adrian Flanagan , Kuan Eeik Tan

Split Learning (SL) -- splits a model into two distinct parts to help protect client data while enhancing Machine Learning (ML) processes. Though promising, SL has proven vulnerable to different attacks, thus raising concerns about how…

Machine Learning · Computer Science 2025-07-15 Tanveer Khan , Mindaugas Budzys , Antonis Michalas

Federated learning (FL) enables multiple clients to jointly train a model by sharing only gradient updates for aggregation instead of raw data. Due to the transmission of very high-dimensional gradient updates from many clients, FL is known…

Cryptography and Security · Computer Science 2025-12-01 Shuangqing Xu , Yifeng Zheng , Zhongyun Hua

Federated Learning (FL) is a pioneering approach in distributed machine learning, enabling collaborative model training across multiple clients while retaining data privacy. However, the inherent heterogeneity due to imbalanced resource…

Machine Learning · Computer Science 2024-11-18 Suraj Racha , Shubh Gupta , Humaira Firdowse , Aastik Solanki , Ganesh Ramakrishnan , Kshitij S. Jadhav

Split learning (SL) is a new collaborative learning technique that allows participants, e.g. a client and a server, to train machine learning models without the client sharing raw data. In this setting, the client initially applies its part…

Cryptography and Security · Computer Science 2023-09-20 Tanveer Khan , Khoa Nguyen , Antonis Michalas , Alexandros Bakas

Federated learning (FL) as distributed machine learning has gained popularity as privacy-aware Machine Learning (ML) systems have emerged as a technique that prevents privacy leakage by building a global model and by conducting…

Cryptography and Security · Computer Science 2023-07-17 Taki Hasan Rafi , Faiza Anan Noor , Tahmid Hussain , Dong-Kyu Chae

In medical imaging, developing generalized segmentation models that can handle multiple organs and lesions is crucial. However, the scarcity of fully annotated datasets and strict privacy regulations present significant barriers to data…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Pochuan Wang , Chen Shen , Masahiro Oda , Chiou-Shann Fuh , Kensaku Mori , Weichung Wang , Holger R. Roth

Federated learning (FL) is a distributed machine learning approach involving multiple clients collaboratively training a shared model. Such a system has the advantage of more training data from multiple clients, but data can be…

Machine Learning · Computer Science 2021-08-24 Sone Kyaw Pye , Han Yu

Federated learning (FL) is a type of collaborative machine learning where participating peers/clients process their data locally, sharing only updates to the collaborative model. This enables to build privacy-aware distributed machine…

Machine Learning · Computer Science 2023-03-07 Filippo Galli , Sayan Biswas , Kangsoo Jung , Tommaso Cucinotta , Catuscia Palamidessi

Federated learning (FL) is a decentralized method enabling hospitals to collaboratively learn a model without sharing private patient data for training. In FL, participant hospitals periodically exchange training results rather than…

Cryptography and Security · Computer Science 2022-08-24 S. Maryam Hosseini , Milad Sikaroudi , Morteza Babaei , H. R. Tizhoosh

Federated learning (FL) is a framework for training machine learning models in a distributed and collaborative manner. During training, a set of participating clients process their data stored locally, sharing only the model updates…

Machine Learning · Computer Science 2023-10-31 Filippo Galli , Kangsoo Jung , Sayan Biswas , Catuscia Palamidessi , Tommaso Cucinotta