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Privacy has raised considerable concerns recently, especially with the advent of information explosion and numerous data mining techniques to explore the information inside large volumes of data. In this context, a new distributed learning…

Machine Learning · Computer Science 2019-10-15 Mengwei Yang , Linqi Song , Jie Xu , Congduan Li , Guozhen Tan

Accurate demand forecasting is critical for brick-and-mortar retailers to optimize inventory management and minimize costs. This study evaluates statistical baselines, tree-based ensembles (XGBoost and LightGBM), and deep learning…

Machine Learning · Computer Science 2026-03-12 Luka Hobor , Mario Brcic , Lidija Polutnik , Ante Kapetanovic

Federated Learning (FL) allows edge devices (or clients) to keep data locally while simultaneously training a shared high-quality global model. However, current research is generally based on an assumption that the training data of local…

Machine Learning · Computer Science 2021-10-27 Zhe Zhang , Shiyao Ma , Jiangtian Nie , Yi Wu , Qiang Yan , Xiaoke Xu , Dusit Niyato

Federated learning (FL) enables a set of distributed clients to jointly train machine learning models while preserving their local data privacy, making it attractive for applications in healthcare, finance, mobility, and smart-city systems.…

Machine Learning · Computer Science 2026-03-26 Eman M. AbouNassar , Amr Elshall , Sameh Abdulah

In the last years, Federated learning (FL) has become a popular solution to train machine learning models in domains with high privacy concerns. However, FL scalability and performance face significant challenges in real-world deployments…

Machine Learning · Computer Science 2026-03-11 Davide Domini , Gianluca Aguzzi , Lukas Esterle , Mirko Viroli

This work explores the application of Federated Learning (FL) to Unsupervised Semantic image Segmentation (USS). Recent USS methods extract pixel-level features using frozen visual foundation models and refine them through self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Evangelos Charalampakis , Vasileios Mygdalis , Ioannis Pitas

Deep learning has achieved impressive performance in many domains, such as computer vision and natural language processing, but its advantage over classical shallow methods on tabular datasets remains questionable. It is especially…

Machine Learning · Computer Science 2023-08-25 Witold Wydmański , Oleksii Bulenok , Marek Śmieja

This work addresses the problem of optimizing communications between server and clients in federated learning (FL). Current sampling approaches in FL are either biased, or non optimal in terms of server-clients communications and training…

Machine Learning · Computer Science 2021-05-24 Yann Fraboni , Richard Vidal , Laetitia Kameni , Marco Lorenzi

Random Forests (RF) are among the most powerful and widely used predictive models for centralized tabular data, yet few methods exist to adapt them to the federated learning setting. Unlike most federated learning approaches, the…

Machine Learning · Statistics 2026-05-08 Rémi Khellaf , Erwan Scornet , Aurélien Bellet , Julie Josse

For many machine learning models, a choice of hyperparameters is a crucial step towards achieving high performance. Prevalent meta-learning approaches focus on obtaining good hyperparameters configurations with a limited computational…

Machine Learning · Computer Science 2022-01-31 Katarzyna Woźnica , Mateusz Grzyb , Zuzanna Trafas , Przemysław Biecek

Conditional stochastic optimization has found applications in a wide range of machine learning tasks, such as invariant learning, AUPRC maximization, and meta-learning. As the demand for training models with large-scale distributed data…

Machine Learning · Computer Science 2023-10-05 Xidong Wu , Jianhui Sun , Zhengmian Hu , Junyi Li , Aidong Zhang , Heng Huang

Federated Learning (FL) enables multiple nodes to collaboratively train a model without sharing raw data. However, FL systems are usually deployed in heterogeneous scenarios, where nodes differ in both data distributions and participation…

Machine Learning · Computer Science 2026-02-13 Hongliang Zhang , Jiguo Yu , Guijuan Wang , Wenshuo Ma , Tianqing He , Baobao Chai , Chunqiang Hu

Federated Learning (FL) has become an active and promising distributed machine learning paradigm. As a result of statistical heterogeneity, recent studies clearly show that the performance of popular FL methods (e.g., FedAvg) deteriorates…

Machine Learning · Computer Science 2021-06-24 Hua Huang , Fanhua Shang , Yuanyuan Liu , Hongying Liu

Federated Learning (FL) addresses the need to create models based on proprietary data in such a way that multiple clients retain exclusive control over their data, while all benefit from improved model accuracy due to pooled resources.…

Machine Learning · Computer Science 2024-10-23 Urszula Chajewska , Harsh Shrivastava

Federated learning (FL) is a machine learning methodology that involves the collaborative training of a global model across multiple decentralized clients in a privacy-preserving way. Several FL methods are introduced to tackle…

Machine Learning · Computer Science 2024-12-31 Jordan Slessor , Dezheng Kong , Xiaofen Tang , Zheng En Than , Linglong Kong

Federated learning (FL) aims to collaboratively train a shared model across multiple clients without transmitting their local data. Data heterogeneity is a critical challenge in realistic FL settings, as it causes significant performance…

Machine Learning · Computer Science 2023-11-15 Yuwei Wang , Runhan Li , Hao Tan , Xuefeng Jiang , Sheng Sun , Min Liu , Bo Gao , Zhiyuan Wu

Federated learning paradigm to utilize datasets across multiple data providers. In FL, cross-silo data providers often hesitate to share their high-quality dataset unless their data value can be fairly assessed. Shapley value (SV) has been…

Machine Learning · Computer Science 2025-04-24 Shuyue Wei , Yongxin Tong , Zimu Zhou , Tianran He , Yi Xu

Federated learning (FL) has been widely employed for medical image analysis to facilitate multi-client collaborative learning without sharing raw data. Despite great success, FL's performance is limited for multiple sclerosis (MS) lesion…

This paper compares the performances of three supervised machine learning algorithms in terms of predictive ability and model interpretation on structured or tabular data. The algorithms considered were scikit-learn implementations of…

Machine Learning · Statistics 2022-05-06 Alice J. Liu , Arpita Mukherjee , Linwei Hu , Jie Chen , Vijayan N. Nair

Random Forests have been one of the most popular bagging methods in the past few decades, especially due to their success at handling tabular datasets. They have been extensively studied and compared to boosting models, like XGBoost, which…

Machine Learning · Computer Science 2024-10-28 Dimitris Bertsimas , Vasiliki Stoumpou