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Although common in real-world applications, heterogeneous client label sets are rarely investigated in federated learning (FL). Furthermore, in the cases they are, clients are assumed to be willing to share their entire label sets with…

Machine Learning · Computer Science 2025-08-27 Adam Breitholtz , Edvin Listo Zec , Fredrik D. Johansson

Federated learning has received significant attention for its ability to simultaneously protect customer privacy and leverage distributed data from multiple devices for model training. However, conventional approaches often focus on…

Machine Learning · Computer Science 2025-10-07 Jiahao Zeng , Wolong Xing , Liangtao Shi , Xin Huang , Jialin Wang , Zhile Cao , Zhenkui Shi

Along with the blooming of AI and Machine Learning-based applications and services, data privacy and security have become a critical challenge. Conventionally, data is collected and aggregated in a data centre on which machine learning…

Cryptography and Security · Computer Science 2021-03-19 Nguyen Truong , Kai Sun , Siyao Wang , Florian Guitton , Yike Guo

Federated Learning (FL) is a prominent framework that enables training a centralized model while securing user privacy by fusing local, decentralized models. In this setting, one major obstacle is data heterogeneity, i.e., each client…

Machine Learning · Computer Science 2022-06-22 Artur Back de Luca , Guojun Zhang , Xi Chen , Yaoliang Yu

Federated Learning (FL) has emerged as a vital paradigm in modern machine learning that enables collaborative training across decentralized data sources without exchanging raw data. This approach not only addresses privacy concerns but also…

Machine Learning · Computer Science 2025-08-19 Zahra Kharaghani , Ali Dadras , Tommy Löfstedt

The scarcity of accessible, compliant, and ethically sourced data presents a considerable challenge to the adoption of artificial intelligence (AI) in sensitive fields like healthcare, finance, and biomedical research. Furthermore, access…

Machine Learning · Computer Science 2025-04-02 Kumar Kshitij Patel , Weitong Zhang , Lingxiao Wang

Federated learning (FL) enables multiple clients to jointly train a global model under the coordination of a central server. Although FL is a privacy-aware paradigm, where raw data sharing is not required, recent studies have shown that FL…

Federated Learning enables collaborative model training across decentralized data sources without data transfer. Averaging-based FL is limited by the presence of non-IID data, which negatively impacts convergence speed and final model…

Machine Learning · Computer Science 2026-05-22 Adda Akram Bendoukha , Heber Hwang Arcolezi , Nesrine Kaaniche , Aymen Boudguiga

Federated learning (FL) is an emerging distributed machine learning paradigm proposed for privacy preservation. Unlike traditional centralized learning approaches, FL enables multiple users to collaboratively train a shared global model…

Cryptography and Security · Computer Science 2024-10-01 Hangyu Zhu , Liyuan Huang , Zhenping Xie

Federated Learning enables entities to collaboratively learn a shared prediction model while keeping their training data locally. It prevents data collection and aggregation and, therefore, mitigates the associated privacy risks. However,…

Cryptography and Security · Computer Science 2020-10-16 Raouf Kerkouche , Gergely Ács , Claude Castelluccia

The integration of IoT and AI has unlocked innovation across industries, but growing privacy concerns and data isolation hinder progress. Traditional centralized ML struggles to overcome these challenges, which has led to the rise of…

Machine Learning · Computer Science 2025-12-01 Meriem Arbaoui , Mohamed-el-Amine Brahmia , Abdellatif Rahmoun , Mourad Zghal

Federated learning (FL) enhanced by differential privacy has emerged as a popular approach to better safeguard the privacy of client-side data by protecting clients' contributions during the training process. Existing solutions typically…

Cryptography and Security · Computer Science 2024-07-02 Junxu Liu , Jian Lou , Li Xiong , Jinfei Liu , Xiaofeng Meng

A distinguishing characteristic of federated learning is that the (local) client data could have statistical heterogeneity. This heterogeneity has motivated the design of personalized learning, where individual (personalized) models are…

Machine Learning · Computer Science 2022-07-06 Kaan Ozkara , Antonious M. Girgis , Deepesh Data , Suhas Diggavi

In the field of heterogeneous federated learning (FL), the key challenge is to efficiently and collaboratively train models across multiple clients with different data distributions, model structures, task objectives, computational…

Machine Learning · Computer Science 2025-03-11 Chuan Chen , Tianchi Liao , Xiaojun Deng , Zihou Wu , Sheng Huang , Zibin Zheng

Federated learning (FL) is a distributed learning paradigm that allows multiple decentralized clients to collaboratively learn a common model without sharing local data. Although local data is not exposed directly, privacy concerns…

Machine Learning · Computer Science 2024-10-02 Tongxin Yin , Xuwei Tan , Xueru Zhang , Mohammad Mahdi Khalili , Mingyan Liu

Nowadays, the ubiquitous usage of mobile devices and networks have raised concerns about the loss of control over personal data and research advance towards the trade-off between privacy and utility in scenarios that combine exchange…

Industrial chemical plants often operate under strict data confidentiality constraints, making centralized data-driven process modeling difficult. Federated learning (FL) provides a promising solution by enabling collaborative model…

Machine Learning · Computer Science 2026-04-30 Teetat Pipattaratonchai , Aueaphum Aueawatthanaphisut

The report demonstrates the benefits (in terms of improved claims loss modeling) of harnessing the value of Federated Learning (FL) to learn a single model across multiple insurance industry datasets without requiring the datasets…

Machine Learning · Computer Science 2024-02-26 Panyi Dong , Zhiyu Quan , Brandon Edwards , Shih-han Wang , Runhuan Feng , Tianyang Wang , Patrick Foley , Prashant Shah

Federated learning is a distributed machine learning approach where multiple clients collaboratively train a model without sharing their local data, which contributes to preserving privacy. A challenge in federated learning is managing…

Machine Learning · Computer Science 2025-03-04 Rickard Brännvall

A key promise of machine learning is the ability to assist users with personal tasks. Because the personal context required to make accurate predictions is often sensitive, we require systems that protect privacy. A gold standard…

Machine Learning · Computer Science 2023-02-03 Simran Arora , Christopher Ré