FED-HARGPT: A Hybrid Centralized-Federated Approach of a Transformer-based Architecture for Human Context Recognition

Fuente: arXiv
Saved in:
Bibliographic Details
Main Authors: Gibaut, Wandemberg, Osorio, Alexandre, Munoz, Amparo, Neto, Sildolfo F. G., Grassiotto, Fabio
Format: Preprint
Published: 2026
Subjects:
Online Access:
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1866914422494068736
author Gibaut, Wandemberg
Osorio, Alexandre
Munoz, Amparo
Neto, Sildolfo F. G.
Grassiotto, Fabio
author_facet Gibaut, Wandemberg
Osorio, Alexandre
Munoz, Amparo
Neto, Sildolfo F. G.
Grassiotto, Fabio
contents The study explores a hybrid centralized-federated approach for Human Activity Recognition (HAR) using a Transformer-based architecture. With the increasing ubiquity of edge devices, such as smartphones and wearables, a significant amount of private data from wearable and inertial sensors is generated, facilitating discreet monitoring of human activities, including resting, sleeping, and walking. This research focuses on deploying HAR technologies using mobile sensor data and leveraging Federated Learning within the Flower framework to evaluate the training of a federated model derived from a centralized baseline. The experimental results demonstrate the effectiveness of the proposed hybrid approach in improving the accuracy and robustness of HAR models while preserving data privacy in a non-IID data scenario. The federated learning setup demonstrated comparable performance to centralized models, highlighting the potential of federated learning to strike a balance between data privacy and model performance in real-world applications.
format Preprint
id arxiv_https___arxiv_org_abs_2603_24601
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle FED-HARGPT: A Hybrid Centralized-Federated Approach of a Transformer-based Architecture for Human Context Recognition
Gibaut, Wandemberg
Osorio, Alexandre
Munoz, Amparo
Neto, Sildolfo F. G.
Grassiotto, Fabio
Signal Processing
Artificial Intelligence
Machine Learning
The study explores a hybrid centralized-federated approach for Human Activity Recognition (HAR) using a Transformer-based architecture. With the increasing ubiquity of edge devices, such as smartphones and wearables, a significant amount of private data from wearable and inertial sensors is generated, facilitating discreet monitoring of human activities, including resting, sleeping, and walking. This research focuses on deploying HAR technologies using mobile sensor data and leveraging Federated Learning within the Flower framework to evaluate the training of a federated model derived from a centralized baseline. The experimental results demonstrate the effectiveness of the proposed hybrid approach in improving the accuracy and robustness of HAR models while preserving data privacy in a non-IID data scenario. The federated learning setup demonstrated comparable performance to centralized models, highlighting the potential of federated learning to strike a balance between data privacy and model performance in real-world applications.
title FED-HARGPT: A Hybrid Centralized-Federated Approach of a Transformer-based Architecture for Human Context Recognition
topic Signal Processing
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2603.24601