Journal of Applied Science and Engineering

Published by Tamkang University Press

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Federated Learning for Data Security and Trust in University Sports Systems

 2026

 Volume 35

Yujia Wang

Criminal Investigation Police University of China, Shenyang, 110854, China

Received: August 24, 2026
Accepted: September 10, 2026
Publication Date: September 25, 2026

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Model Performance under Different Module-Ablation Settings

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University sports information systems continuously aggregate data from fitness tests, courses, venue use, check-ins, and wearable devices-multi-source, heterogeneous, distributed, and privacy-sensitive data whose centralized modeling exposes students’ sports and health information, complicates cross-node collaboration, and limits scalability. We therefore build a secure, trustworthy federated learning mechanism for university sports information systems with a six-layer framework spanning data acquisition through application services. After local training it applies gradient pruning, differential-privacy perturbation, and secure aggregation, while node trustworthiness-from contribution, update stability, anomaly risk, and historical reputation-drives trust-weighted aggregation, coupling privacy protection with dynamic credibility control rather than treating them as independent modules. Under non-IID distributions, simulations show the method achieves accuracy, recall, F1, and AUC of 0.887, 0.873, 0.879, and 0.914, exceeding FedAvg’s F1 by about 5.8 points and DP-FedAvg’s by about 6.7; with 30% malicious nodes it still holds F1=0.831 versus 0.702 for FedAvg. The mechanism thus improves performance, privacy, and anomalous-node suppression without raw sports data leaving local nodes.

Keywords: data security; trustworthiness assessment; differential privacy; secure aggregation; non-IID data.

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