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Federated learning (FL) allows collaborative machine learning training without sharing private data. While most FL methods assume identical data domains across clients, real-world scenarios often involve heterogeneous data domains.…

Machine Learning · Computer Science 2024-10-29 Lei Wang , Jieming Bian , Letian Zhang , Chen Chen , Jie Xu

Data-Free Meta-Learning (DFML) aims to derive knowledge from a collection of pre-trained models without accessing their original data, enabling the rapid adaptation to new unseen tasks. Current methods often overlook the heterogeneity among…

Machine Learning · Computer Science 2024-12-10 Yongxian Wei , Zixuan Hu , Li Shen , Zhenyi Wang , Yu Li , Chun Yuan , Dacheng Tao

Traditionally, learning the structure of a Dynamic Bayesian Network has been centralized, requiring all data to be pooled in one location. However, in real-world scenarios, data are often distributed across multiple entities (e.g.,…

Machine Learning · Computer Science 2025-02-07 Jianhong Chen , Ying Ma , Xubo Yue

Federated Learning (FL) provides decentralised model training, which effectively tackles problems such as distributed data and privacy preservation. However, the generalisation of global models frequently faces challenges from data…

Machine Learning · Computer Science 2025-09-05 Ozgu Goksu , Nicolas Pugeault

Time Series Forecasting (TSF) is key functionality in numerous fields, such as financial investment, weather services, and energy management. Although increasingly capable TSF methods occur, many of them require domain-specific data…

Machine Learning · Computer Science 2025-06-13 Zhe Li , Xiangfei Qiu , Peng Chen , Yihang Wang , Hanyin Cheng , Yang Shu , Jilin Hu , Chenjuan Guo , Aoying Zhou , Christian S. Jensen , Bin Yang

Financial time series forecasting is central to trading, portfolio optimization, and risk management, yet it remains challenging due to noisy, non-stationary, and heterogeneous data. Recent advances in time series foundation models (TSFMs),…

Computational Finance · Quantitative Finance 2025-11-25 Eghbal Rahimikia , Hao Ni , Weiguan Wang

Federated learning (FL) supports training models on geographically distributed devices. However, traditional FL systems adopt a centralized synchronous strategy, putting high communication pressure and model generalization challenge.…

Machine Learning · Computer Science 2021-11-17 Jing Cao , Zirui Lian , Weihong Liu , Zongwei Zhu , Cheng Ji

The heterogeneity of hardware and data is a well-known and studied problem in the community of Federated Learning (FL) as running under heterogeneous settings. Recently, custom-size client models trained with Knowledge Distillation (KD) has…

Machine Learning · Computer Science 2022-11-15 Hongrui Shi , Valentin Radu , Po Yang

We study a new form of federated learning where the clients train personalized local models and make predictions jointly with the server-side shared model. Using this new federated learning framework, the complexity of the central shared…

Machine Learning · Computer Science 2020-03-31 Alekh Agarwal , John Langford , Chen-Yu Wei

Federated Learning (FL) can be affected by data and device heterogeneities, caused by clients' different local data distributions and latencies in uploading model updates (i.e., staleness). Traditional schemes consider these heterogeneities…

Machine Learning · Computer Science 2024-12-25 Haoming Wang , Wei Gao

Federated learning enables multiple institutions to collaboratively train machine learning models on their local data in a privacy-preserving way. However, its distributed nature often leads to significant heterogeneity in data…

Machine Learning · Computer Science 2021-07-20 Liangqiong Qu , Niranjan Balachandar , Daniel L Rubin

SplitFed Learning (SFL) combines federated learning and split learning to enable collaborative training across distributed edge devices; however, it faces significant challenges in heterogeneous environments with diverse computational and…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-27 Abdullah Al Asif , Sixing Yu , Juan Pablo Munoz , Arya Mazaheri , Ali Jannesari

Federated Learning is a new machine learning paradigm dealing with distributed model learning on independent devices. One of the many advantages of federated learning is that training data stay on devices (such as smartphones), and only…

Machine Learning · Computer Science 2022-07-19 Sannara Ek , Romain Rombourg , François Portet , Philippe Lalanda

Recent advances in personalized federated learning have focused on addressing client model heterogeneity. However, most existing methods still require external data, rely on model decoupling, or adopt partial learning strategies, which can…

Machine Learning · Computer Science 2025-07-31 Chen Zhang , Husheng Li , Xiang Liu , Linshan Jiang , Danxin Wang

This paper focuses on addressing the practical yet challenging problem of model heterogeneity in federated learning, where clients possess models with different network structures. To track this problem, we propose a novel framework called…

Machine Learning · Computer Science 2023-10-30 Jiaqi Wang , Xingyi Yang , Suhan Cui , Liwei Che , Lingjuan Lyu , Dongkuan Xu , Fenglong Ma

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

As a promising paradigm federated Learning (FL) is widely used in privacy-preserving machine learning, which allows distributed devices to collaboratively train a model while avoiding data transmission among clients. Despite its immense…

Machine Learning · Computer Science 2023-08-29 Jinglong Shen , Xiucheng Wang , Nan Cheng , Longfei Ma , Conghao Zhou , Yuan Zhang

Federated learning is a new framework that protects data privacy and allows multiple devices to cooperate in training machine learning models. Previous studies have proposed multiple approaches to eliminate the challenges posed by non-iid…

Machine Learning · Computer Science 2025-01-13 Shunxin Guo , Hongsong Wang , Shuxia Lin , Xu Yang , Xin Geng

In cross-silo federated learning (FL), companies collaboratively train a shared global model without sharing heterogeneous data. Prior related work focused on algorithm development to tackle data heterogeneity. However, the dual problem of…

Computer Science and Game Theory · Computer Science 2024-08-22 Chao Huang , Justin Dachille , Xin Liu

Federated learning (FL) is a distributed learning methodology that allows multiple nodes to cooperatively train a deep learning model, without the need to share their local data. It is a promising solution for telemonitoring systems that…

Machine Learning · Computer Science 2021-07-15 Alaa Awad Abdellatif , Naram Mhaisen , Amr Mohamed , Aiman Erbad , Mohsen Guizani , Zaher Dawy , Wassim Nasreddine