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Electrocardiogram Signal Analysis Based on Discrete Wavelet Transform with Machine Learning Method in Autistic Children
Corresponding Author(s) : Muhammad Irhamsyah
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control,
Vol. 11, No. 3, August 2026 (Article in Progress)
Abstract
ASD is a neurodevelopmental disorder that affects a child's ability to manage emotions, interact socially, and respond to the environment. The main challenge in monitoring children's physiological condition is the limited availability of objective observation methods that rely heavily on health professionals. One potential objective approach is to analyze the ECG signal. However, ECG signals in children with ASD generally have high levels of noise due to body movements during recording, making manual analysis and conventional methods difficult. This study aims to develop a classification system for the physiological condition of children with ASD based on ECG signals, specifically to distinguish between quiet and active states. The dataset consists of 1000 from each of the two active classes and 1000 from the quiet class. ECG signals were processed using DWT for filtering, and then classified using three machine learning algorithms: SVM, RF, and AdaBoost. The performance of each model was evaluated using accuracy, precision, recall, and F1-score metrics. The evaluation results showed that Random Forest provided the best performance, with an accuracy value of 93%. Meanwhile, SVM achieved an accuracy of 91.25%, while AdaBoost showed slightly lower performance at 90.00%. Based on these results, Random Forest was selected as the most optimal model and integrated into a web-based system using Streamlit. This study demonstrates that the combination of DWT and Random Forest is effective for classifying the physiological conditions of autistic children and has the potential to serve as an objective tool for monitoring them.
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- A. Miranda, C. Berenguer, I. Baixauli, and B. Roselló, “Childhood language skills as predictors of social, adaptive and behavior outcomes of adolescents with autism spectrum disorder,” Res. Autism Spectr. Disord., vol. 103, no. 2, p. 11, 2023, doi: 10.1016/j.rasd.2023.102143.
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- J. K. Tsai and C. H. Hung, “Improving adaboost classifier to predict enterprise performance after covid-19,” Mathematics, vol. 9, no. 18, pp. 1–10, 2021, doi: 10.3390/math9182215.
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- S. Gamil, F. Zeng, M. Alrifaey, M. Asim, and N. Ahmad, “An Efficient AdaBoost Algorithm for Enhancing Skin Cancer Detection and Classification,” Algorithms, vol. 17, no. 8, p. 19, 2024, doi: 10.3390/a17080353.
- C. Miller, T. Portlock, D. M. Nyaga, and J. M. O. Sullivan, “A review of model evaluation metrics for machine learning in genetics and genomics,” Front. Bioinforma., vol. 4, no. 145, pp. 1–13, 2024, doi: 10.3389/fbinf.2024.1457619.
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References
A. Miranda, C. Berenguer, I. Baixauli, and B. Roselló, “Childhood language skills as predictors of social, adaptive and behavior outcomes of adolescents with autism spectrum disorder,” Res. Autism Spectr. Disord., vol. 103, no. 2, p. 11, 2023, doi: 10.1016/j.rasd.2023.102143.
D. Tilwani, J. Bradshaw, A. Sheth, and C. O’Reilly, “ECG Recordings as Predictors of Very Early Autism Likelihood: A Machine Learning Approach,” Bioengineering, vol. 10, no. 7, p. 17, Jul. 2023, doi: 10.3390/bioengineering10070827.
M. Melinda, M. Irhamsyah, R. Miftahujjannah, D. D. Acula, and Y. Yunidar, “Classification of Arrhythmia Electrocardiogram Signals Using Kernel Principal Component Analysis and Naive Bayes,” Kinet. Game Technol. Inf. Syst. Comput. Network, Comput. Electron. Control, vol. 10, no. 3, pp. 283–294, 2025, doi: 10.22219/kinetik.v10i3.2219.
M. Miroslava, D. Adiani, A. Swanson, and N. Sarkar, “Heart Rate Variability for Stress Detection with Autistic Young Adults,” Lect. Notes Comput. Sci., vol. 1, pp. 3–13, 2022, doi: 10.1007/978-3-031-05887-5_1.
A. Bellato, I. Arora, P. Kochhar, D. Ropar, C. Hollis, and M. J. Groom, “Heart Rate Variability in Children and Adolescents with Autism, ADHD and Co-occurring Autism and ADHD, During Passive and Active Experimental Conditions,” J. Autism Dev. Disord., vol. 52, no. 11, pp. 4679–4691, Nov. 2022, doi: 10.1007/s10803-021-05244-w.
A. Bagirathan, J. Selvaraj, A. Gurusamy, and H. Das, “Recognition of positive and negative valence states in children with autism spectrum disorder (ASD) using discrete wavelet transform (DWT) analysis of electrocardiogram signals (ECG),” J. Ambient Intell. Humaniz. Comput., vol. 12, no. 1, pp. 1–12, 2020, doi: 10.1007/s12652-020-01985-1.
S. Cano, C. Cubillos, R. Alfaro, A. Romo, M. Garcia, and F. Moreira, “Wearable Solutions Using Physiological Signals for Stress Monitoring on Individuals with Autism Spectrum Disorder (ASD): A Systematic Literature Review,” Sensors, vol. 24, no. 8137, pp. 1–26, 2024, doi: 10.3390/s24248137.
Y. Jia, H. Pei, J. Liang, Y. Zhou, Y. Yang, and Y. Cui, “Preprocessing and Denoising Techniques for Electrocardiography and Magnetocardiography: A Review,” Bioengineering, vol. 11, no. 1109, pp. 1–38, 2024, doi: 10.3390/bioengineering11111109.
C. Janiesch, P. Zschech, and K. Heinrich, “Machine learning and deep learning,” Electron. Mark., vol. 31, pp. 685–695, 2021, doi: 10.1007/s12525-021-00475-2.
M. Melinda, Y. Yunidar, R. Miftahujjannah, S. Rusdiana, A. Amalia, and L. Q. Zakaria, “Improving the Classification Performance of SVM, KNN, and Random Forest for Detecting Stress Conditions in Autistic Children,” IJESTY, vol. 5, no. 4, pp. 152–161, 2025, doi: 10.52088/ijesty.v5i4.1206.
M. Melinda, M. Raja, J. Junidar, R. Miftahujjannah, S. Rusdiana, and M. Irhamsyah, “Performance Comparison Analysis of Random Forest, Support Vector Machine, and AdaBoost in Arrhythmia Classification,” J. Image Graph., vol. 13, no. 5, pp. 540–548, 2025, doi: 10.18178/joig.13.5.540-548.
S. Rahman, J. Yearwood, and C. Karmakar, “Design and evaluation of a knowledge-based ECG noise filtering framework,” Sci. Rep., vol. 16, no. 1, pp. 1–20, 2026, doi: 10.1038/s41598-025-32249-7.
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C. N. Nurbadriani, M. Melinda, Y. Yunidar, and F. Arnia, “Electrocardiogram Detection System of Autistic Children Based on AD8232 for Healthcare,” in Proceeding - 2023 2nd International Conference on Computer System, Information Technology, and Electrical Engineering: Sustainable Development for Smart Innovation System, COSITE 2023, Institute of Electrical and Electronics Engineers Inc., 2023, pp. 126–131. doi: 10.1109/COSITE60233.2023.10250117.
M. Lin, Y. Hong, S. Hong, and S. Zhang, “Discrete Wavelet Transform based ECG classification using gcForest: A deep ensemble method,” Technol. Heal. Care, vol. 32, no. 201, pp. S95–S105, 2024, doi: 10.3233/THC-248008.
M. Ali, S. Bamerni, and A. K. Al-Sulaifanie, “ECG Signal Denoising Using Discrete Wavelet Transform,” J. Univ. Duhok, vol. 26, no. 2, pp. 450–463, 2023.
N. P. Martono and H. Ohwada, “Evaluating the Impact of Windowing Techniques on Fourier Transform-Preprocessed Signals for Deep Learning-Based ECG Classification,” Hearts, vol. 5, no. 4, pp. 501–515, Oct. 2024, doi: 10.3390/hearts5040037.
A. Pant and A. Kumar, “Hanning FIR window filtering analysis for EEG signals,” Biomed. Anal., vol. 1, no. 2, pp. 111–123, 2024, doi: 10.1016/j.bioana.2024.05.003.
A. Pant, A. Kumar, C. Verma, and Z. Illés, “Comparative exploration on EEG signal filtering using window control methods,” Results Control Optim., vol. 17, no. 100485, pp. 1–17, Dec. 2024, doi: 10.1016/j.rico.2024.100485.
A. Kebaili, J. Lapuyade-Lahorgue, and S. Ruan, “Deep Learning Approaches for Data Augmentation in Medical Imaging: A Review,” Apr. 01, 2023, MDPI. doi: 10.3390/jimaging9040081.
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M. M. Rahman, M. W. Rivolta, F. Badilini, and R. Sassi, “A Systematic Survey of Data Augmentation of ECG Signals for AI Applications,” Sensors, vol. 23, no. 5237, pp. 1–22, 2023, doi: 10.3390/s23115237.
F. Khan, X. Yu, Z. Yuan, and A. ur Rehman, “ECG classification using 1-D convolutional deep residual neural network,” PLoS One, vol. 18, no. April, pp. 1–22, Apr. 2023, doi: 10.1371/journal.pone.0284791.
J. Botros, F. Mourad-Chehade, and D. Laplanche, “CNN and SVM-Based Models for the Detection of Heart Failure Using Electrocardiogram Signals,” Sensors, vol. 22, no. 9190, pp. 1–11, 2022, doi: 10.3390/s22239190.
T. Azizi, “Comparative Analysis of Statistical, Time – Frequency, and SVM Techniques for Change Detection in Nonlinear Biomedical Signals,” Signals, vol. 5, no. 4, pp. 736–755, 2024, doi: 10.3390/signals5040041.
J. F. Saenz-cogollo and M. Agelli, “Investigating Feature Selection and Random Forests for Inter-Patient Heartbeat Classification,” Algorithms, vol. 13, no. 75, pp. 1–13, 2020, doi: 10.3390/a13040075.
N. H. Arif, M. R. Faisal, A. Farmadi, D. T. Nugrahadi, F. Abadi, and U. A. Ahmad, “An Approach to ECG-based Gender Recognition Using Random Forest Algorithm,” JEEEMI, vol. 6, no. 2, pp. 107–115, 2024, doi: 10.35882/jeeemi.v6i2.363.
J. K. Tsai and C. H. Hung, “Improving adaboost classifier to predict enterprise performance after covid-19,” Mathematics, vol. 9, no. 18, pp. 1–10, 2021, doi: 10.3390/math9182215.
Z. Kucukakcali, S. Akbulut, and C. Colak, “Evaluating Ensemble-Based Machine Learning Models for Diagnosing Pediatric Acute Appendicitis: Insights from a Retrospective Observational Study,” J. Clin. Med., vol. 14, no. 12, pp. 1–18, 2025, doi: 10.3390/jcm14124264.
S. Gamil, F. Zeng, M. Alrifaey, M. Asim, and N. Ahmad, “An Efficient AdaBoost Algorithm for Enhancing Skin Cancer Detection and Classification,” Algorithms, vol. 17, no. 8, p. 19, 2024, doi: 10.3390/a17080353.
C. Miller, T. Portlock, D. M. Nyaga, and J. M. O. Sullivan, “A review of model evaluation metrics for machine learning in genetics and genomics,” Front. Bioinforma., vol. 4, no. 145, pp. 1–13, 2024, doi: 10.3389/fbinf.2024.1457619.
Y. Yunidar, M. Melinda, Albahri, H. Aulia, H. Dimiati, and N. Basir, “Precise Electrocardiogram Signal Analysis Using ResNet, DenseNet, and XceptionNet Models in Autistic Children,” JEEEMI, vol. 7, no. 4, pp. 1303–1319, 2025, doi: 10.35882/jeeemi.v7i4.1044.
R. Nayyab et al., “Enhancing ECG disease detection accuracy through deep learning models and P-QRS-T waveform features,” PLoS One, vol. 20, no. 6, pp. 1–17, 2025, doi: 10.1371/journal.pone.0325358.