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EEG-Based Classification of Pediatric ADHD via Multi-Classifier, Multi-Band Ablation: Verifying the Standalone Predictive Capacity of the Delta-Band Biomarker

  • Journal of Software Forensics
  • Abbr : JSF
  • 2026, 22(2), pp.193~203
  • DOI : 10.29056/jsf.2026.06.17
  • Publisher : Korea Software Assessment and Valuation Society
  • Research Area : Engineering > Computer Science
  • Received : June 1, 2026
  • Accepted : June 20, 2026
  • Published : June 30, 2026

Fauzia Fika 1 Kim young in 1

1부산대학교

Accredited

ABSTRACT

While EEG-based machine-learning models achieve high accuracy, purely data-driven feature selection may inadvertently obscure mutually correlated, biologically significant markers like the delta-band (0.5–3.0 Hz). To evaluate its independent predictive capacity, we propose a five-stage spatial–spectral ablation with four classifiers (Random Forest, SVM, XGBoost, and a Multilayer Perceptron). Using a public dataset of 61 ADHD and 60 control children (19 channels, 128 Hz), we extract 1,159 features and evaluate every feature-set under stratified 10-fold cross-validation. The full-feature model reaches 98.4–99.6% accuracy (0.998–1.000 AUC). Notably, utilizing only the 57 delta-band power/entropy features the models attained a mean AUC of 0.846, far exceeding a label-permuted control (0.499). These results provide strong evidence for the delta band as a standalone biomarker, highlighting the necessity of balancing mathematical optimization with biological interpretability in medical AI.

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