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Effective data partitioning is known to be crucial in machine learning. Traditional cross-validation methods like K-Fold Cross-Validation (KFCV) enhance model robustness but often compromise generalisation assessment due to high…

Machine Learning · Computer Science 2025-08-05 Christopher Godwin Udomboso , Caston Sigauke , Ini Adinya

The XGBoost method has many advantages and is especially suitable for statistical analysis of big data, but its loss function is limited to convex functions. In many specific applications, a nonconvex loss function would be preferable. In…

Machine Learning · Computer Science 2022-01-20 Yang Guang

A key challenge in federated learning applications is the statistical heterogeneity of local datasets. Clustered federated learning addresses this challenge by identifying clusters of local datasets that are approximately homogeneous. One…

Machine Learning · Computer Science 2024-08-01 A. Jung

Federated Learning (FL) is a paradigm that aims to support loosely connected clients in learning a global model collaboratively with the help of a centralized server. The most popular FL algorithm is Federated Averaging (FedAvg), which is…

Computer Vision and Pattern Recognition · Computer Science 2021-01-21 Yaoxin Zhuo , Baoxin Li

Federated learning (FL) is a promising approach to enable the future Internet of vehicles consisting of intelligent connected vehicles (ICVs) with powerful sensing, computing and communication capabilities. We consider a base station (BS)…

Machine Learning · Computer Science 2022-12-08 Bowen Xie , Yuxuan Sun , Sheng Zhou , Zhisheng Niu , Yang Xu , Jingran Chen , Deniz Gündüz

Federated Learning (FL) enables collaborative model training across decentralized clients without sharing private data. However, FL suffers from biased global models due to non-IID and long-tail data distributions. We propose…

Machine Learning · Computer Science 2026-01-08 Jingrui Zhang , Yimeng Xu , Shujie Li , Feng Liang , Haihan Duan , Yanjie Dong , Victor C. M. Leung , Xiping Hu

In federated learning, a central server coordinates the training of a single model on a massively distributed network of devices. This setting can be naturally extended to a multi-task learning framework, to handle real-world federated…

Machine Learning · Computer Science 2021-02-05 Luca Corinzia , Ami Beuret , Joachim M. Buhmann

In this paper, we initiate a study of functional minimization in Federated Learning. First, in the semi-heterogeneous setting, when the marginal distributions of the feature vectors on client machines are identical, we develop the federated…

Machine Learning · Computer Science 2021-03-15 Zebang Shen , Hamed Hassani , Satyen Kale , Amin Karbasi

Federated Learning (FL) in Deep Learning (DL)-automated medical image segmentation helps preserving privacy by enabling collaborative model training without sharing patient data. However, FL faces challenges with data heterogeneity among…

Image and Video Processing · Electrical Eng. & Systems 2024-08-22 Philip Schutte , Valentina Corbetta , Regina Beets-Tan , Wilson Silva

Learning from limited data has been extensively studied in machine learning, considering that deep neural networks achieve optimal performance when trained using a large amount of samples. Although various strategies have been proposed for…

Machine Learning · Computer Science 2023-12-29 Ramona Ghilea , Islem Rekik

Federated Learning (FL) has emerged as a means of distributed learning using local data stored at clients with a coordinating server. Recent studies showed that FL can suffer from poor performance and slower convergence when training data…

Machine Learning · Computer Science 2023-08-17 Van Sy Mai , Richard J. La , Tao Zhang

Federated Learning (FL) is a distributed machine learning framework in communication network systems. However, the systems' Non-Independent and Identically Distributed (Non-IID) data negatively affect the convergence efficiency of the…

Machine Learning · Computer Science 2025-07-04 Ping Luo , Xiaoge Deng , Ziqing Wen , Tao Sun , Dongsheng Li

Federated Learning (FL) is a decentralized approach for collaborative model training on edge devices. This distributed method of model training offers advantages in privacy, security, regulatory compliance, and cost-efficiency. Our emphasis…

Machine Learning · Computer Science 2024-10-24 Charuka Herath , Xiaolan Liu , Sangarapillai Lambotharan , Yogachandran Rahulamathavan

Federated learning is essential for enabling collaborative model training across decentralized data sources while preserving data privacy and security. This approach mitigates the risks associated with centralized data collection and…

Machine Learning · Computer Science 2025-03-14 Daoyuan Li , Zuyuan Yang , Shengli Xie

As a prevalent distributed learning paradigm, Federated Learning (FL) trains a global model on a massive amount of devices with infrequent communication. This paper investigates a class of composite optimization and statistical recovery…

Machine Learning · Computer Science 2022-10-04 Yajie Bao , Michael Crawshaw , Shan Luo , Mingrui Liu

There are situations where data relevant to a machine learning problem are distributed among multiple locations that cannot share the data due to regulatory, competitiveness, or privacy reasons. For example, data present in users'…

Machine Learning · Computer Science 2020-08-27 Dimitris Stripelis , Jose Luis Ambite

Federated Learning is a popular distributed learning paradigm in machine learning. Meanwhile, composition optimization is an effective hierarchical learning model, which appears in many machine learning applications such as meta learning…

Machine Learning · Computer Science 2023-03-31 Feihu Huang

Despite the rise to dominance of deep learning in unstructured data domains, tree-based methods such as Random Forests (RF) and Gradient Boosted Decision Trees (GBDT) are still the workhorses for handling discriminative tasks on tabular…

Machine Learning · Computer Science 2025-04-21 João Bravo

Federated learning (FL) has emerged as the predominant approach for collaborative training of neural network models across multiple users, without the need to gather the data at a central location. One of the important challenges in this…

Machine Learning · Computer Science 2021-07-15 Matthias Reisser , Christos Louizos , Efstratios Gavves , Max Welling

While federated learning has shown strong results in optimizing a machine learning model without direct access to the original data, its performance may be hindered by intermittent client availability which slows down the convergence and…

Machine Learning · Computer Science 2022-12-08 Zheng Wang , Xiaoliang Fan , Jianzhong Qi , Haibing Jin , Peizhen Yang , Siqi Shen , Cheng Wang