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We study a Federated Reinforcement Learning (FedRL) problem in which $n$ agents collaboratively learn a single policy without sharing the trajectories they collected during agent-environment interaction. We stress the constraint of…

Machine Learning · Computer Science 2022-04-07 Hao Jin , Yang Peng , Wenhao Yang , Shusen Wang , Zhihua Zhang

Federated reinforcement learning (FedRL) enables collaborative learning while preserving data privacy by preventing direct data exchange between agents. However, many existing FedRL algorithms assume that all agents operate in identical…

Machine Learning · Computer Science 2025-06-17 Ali Beikmohammadi , Sarit Khirirat , Peter Richtárik , Sindri Magnússon

Federated Learning (FL) represents a significant advancement in distributed machine learning, enabling multiple participants to collaboratively train models without sharing raw data. This decentralized approach enhances privacy by keeping…

Cryptography and Security · Computer Science 2025-02-10 Jaydip Sen , Hetvi Waghela , Sneha Rakshit

Federated learning has emerged as a powerful framework for analysing distributed data, yet two challenges remain pivotal: heterogeneity across sites and privacy of local data. In this paper, we address both challenges within a federated…

Machine Learning · Computer Science 2026-04-07 Mengchu Li , Ye Tian , Yang Feng , Yi Yu

Federated learning (FL) offers an innovative paradigm for collaborative model training across decentralized devices, such as smartphones, balancing enhanced predictive performance with the protection of user privacy in sensitive areas like…

Machine Learning · Computer Science 2025-09-15 Mohammad Hasan Narimani , Mostafa Tavassolipour

Autonomous driving is an active research topic in both academia and industry. However, most of the existing solutions focus on improving the accuracy by training learnable models with centralized large-scale data. Therefore, these methods…

Machine Learning · Computer Science 2022-04-20 Anh Nguyen , Tuong Do , Minh Tran , Binh X. Nguyen , Chien Duong , Tu Phan , Erman Tjiputra , Quang D. Tran

Federated learning (FL), as a type of distributed machine learning, is capable of significantly preserving client's private data from being shared among different parties. Nevertheless, private information can still be divulged by analyzing…

Machine Learning · Computer Science 2024-02-06 Adrien Banse , Jan Kreischer , Xavier Oliva i Jürgens

Distributed Federated Learning (DFL) enables decentralized model training across large-scale systems without a central parameter server. However, DFL faces three critical challenges: privacy leakage from honest-but-curious neighbors, slow…

Machine Learning · Computer Science 2026-02-24 Nuocheng Yang , Sihua Wang , Zhaohui Yang , Mingzhe Chen , Changchuan Yin , Kaibin Huang

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

Federated Learning (FL) emerged as a learning method to enable the server to train models over data distributed among various clients. These clients are protective about their data being leaked to the server, any other client, or an…

Machine Learning · Computer Science 2025-01-27 Uday Bhaskar , Varul Srivastava , Avyukta Manjunatha Vummintala , Naresh Manwani , Sujit Gujar

In distributed reinforcement learning, it is common to exchange the experience memory of each agent and thereby collectively train their local models. The experience memory, however, contains all the preceding state observations and their…

Machine Learning · Computer Science 2020-04-14 Han Cha , Jihong Park , Hyesung Kim , Seong-Lyun Kim , Mehdi Bennis

In this paper, we propose a method for privacy-preserving federated learning that uses randomly selected model parameters to update global models. High-quality deep neural networks (DNN) models require a huge amount of training data in…

Cryptography and Security · Computer Science 2026-05-05 Hiroto Sawada , Shoko Imaizumi , Hitoshi Kiya

Federated representation learning (FRL) aims to learn personalized federated models with effective feature extraction from local data. FRL algorithms that share the majority of the model parameters face significant challenges with huge…

Machine Learning · Computer Science 2024-10-15 Haolin Yu , Guojun Zhang , Pascal Poupart

Federated Learning (FL) aims to protect data privacy by enabling clients to collectively train machine learning models without sharing their raw data. However, recent studies demonstrate that information exchanged during FL is subject to…

Machine Learning · Computer Science 2024-12-11 Pengxin Guo , Shuang Zeng , Wenhao Chen , Xiaodan Zhang , Weihong Ren , Yuyin Zhou , Liangqiong Qu

Deep learning has shown incredible potential across a wide array of tasks, and accompanied by this growth has been an insatiable appetite for data. However, a large amount of data needed for enabling deep learning is stored on personal…

Federated learning (FL) is a promising approach to enabling collaborative model training without centralized data sharing, a crucial requirement in scientific domains where data privacy, ownership, and compliance constraints are critical.…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-13 Zilinghan Li , Aditya Sinha , Yijiang Li , Kyle Chard , Kibaek Kim , Ravi Madduri

Federated Learning is a privacy preserving decentralized machine learning paradigm designed to collaboratively train models across multiple clients by exchanging gradients to the server and keeping private data local. Nevertheless, recent…

Cryptography and Security · Computer Science 2025-01-07 Isaac Baglin , Xiatian Zhu , Simon Hadfield

Multi-Agent Reinforcement Learning currently focuses on implementations where all data and training can be centralized to one machine. But what if local agents are split across multiple tasks, and need to keep data private between each? We…

Machine Learning · Computer Science 2022-10-21 Doseok Jang , Larry Yan , Lucas Spangher , Costas J. Spanos

Federated reinforcement learning (FRL) methods usually share the encrypted local state or policy information and help each client to learn from others while preserving everyone's privacy. In this work, we propose that sharing the…

Machine Learning · Computer Science 2025-05-16 Zengxia Guo , Bohui An , Zhongqi Lu

Federated Reinforcement Learning (FedRL) encourages distributed agents to learn collectively from each other's experience to improve their performance without exchanging their raw trajectories. The existing work on FedRL assumes that all…

Machine Learning · Computer Science 2023-01-27 Flint Xiaofeng Fan , Yining Ma , Zhongxiang Dai , Cheston Tan , Bryan Kian Hsiang Low , Roger Wattenhofer