Journal of Electrical Technology UMY https://journal.umy.ac.id/index.php/jet <p style="text-align: justify;"><strong>Journal of Electrical Technology UMY (JET-UMY)</strong> is an open access peer-reviewed journal published by Department of Electrical Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta in collaboration with <a href="https://fortei.org/v2/tentang-fortei/" target="_blank" rel="noopener">FORTEI (Forum Pendidikan Tinggi Teknik Elektro Indonesia)</a> that publishes original theoretical and applied papers on all aspects of Electrical, Electronics, and Computer Engineering. The topics to be covered include, but are not limited to:</p> <p style="text-align: justify;">Power devices, energy conversion, mathematical modelling, electrical machines, instrumentations and measurements, power electronics and its applications (power electronics applications for home, aerospace, automotive, lighting systems and so on), telecommunication system, signal processing, control system, electronics system, computer system, diagnostics, reliability, dependability safety and electromagnetic compatibility, power generation, transmission, and distribution, power system planning and control, network harmonics, power quality, optimization techniques, fault location and analysis, distributed generation, co-generation, renewable energy sources, energy management systems, applications of expert systems, electric and hybrid vehicles, vehicular technology, magnetic fields, theory and modelling of magnetic materials, nanotechnology, plasma engineering, sensors and actuators, electrical circuits, teaching and continuous education, and another related topics.</p> <p style="text-align: justify;">Journal of Electrical Technology UMY (JET UMY) is an open access journal and it means that the users or readers have the permission to take the contents/articles without any charge. The contents or articles are provided for those who need some materials about electrical engineering for free.</p> <p style="text-align: justify;"> </p> <div><strong>ISSN: <a href="https://portal.issn.org/resource/ISSN/2550-1186" target="_blank" rel="noopener">2550-1186 (Print)</a></strong></div> <div><strong>ISSN: <a href="https://portal.issn.org/resource/ISSN/2580-6823" target="_blank" rel="noopener">2580-6823 (Online)</a></strong></div> <p style="text-align: justify;"><strong>Frequency:</strong></p> <p style="text-align: justify;">published sixmonthly, appearing on June and December since 2020 (published threemonthly, appearing on the last day of March, June, September, December until December 2019).</p> <div id="journalDescription"> <div style="text-align: justify;"> </div> </div> Universitas Muhammadiyah Yogyakarta en-US Journal of Electrical Technology UMY 2550-1186 <p><strong>Copyright</strong></p><p><strong>The Authors</strong> submitting a manuscript do so on the understanding that if accepted for publication, copyright of the article shall be assigned to <strong>Journal of Electrical Technology UMY</strong>. Copyright encompasses rights to reproduce and deliver the article in all form and media, including reprints, photographs, microfilms, and any other similar reproductions, as well as translations.</p><p><strong>Authors</strong> should sign <a href="https://docs.google.com/document/d/1TaKDVu_MVfsuh7uBWxyscV05VHAWex6T/edit?usp=sharing&amp;ouid=108957525148858431221&amp;rtpof=true&amp;sd=true" target="_blank">Copyright Transfer Agreement</a> when they have approved the final proofs sent by the journal prior the publication. <strong>JET UMY</strong> strives to ensure that no errors occur in the articles that have been published, both data errors and statements in the article.</p><p><strong>JET UMY</strong> keep the rights to articles that have been published. Authors are permitted to disseminate published article by sharing the link of <strong>JET UMY</strong> website. <strong>Authors</strong> are allowed to use their works for any purposes deemed necessary without written permission from <strong>JET UMY</strong> with an acknowledgement of initial publication in this journal.</p><p><strong>License</strong></p><p>All articles published in <strong>JET UMY</strong> are licensed under a <a href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike 4.0 International</a> (CC BY-SA) license. You are free to:</p><ul><li><strong>Share </strong>— copy and redistribute the material in any medium or format</li><li><strong>Adapt </strong>— remix, transform, and build upon the material for any purpose, even commercially.</li></ul><p>The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms:</p><div id="deed-conditions" class="row"><ul><li><strong>Attribution </strong>— You must give <a id="appropriate_credit_popup" class="helpLink" title="" tabindex="0" href="https://creativecommons.org/licenses/by-sa/4.0/" data-original-title="">appropriate credit</a>, provide a link to the license, and <a id="indicate_changes_popup" class="helpLink" title="" tabindex="0" href="https://creativecommons.org/licenses/by-sa/4.0/" data-original-title="">indicate if changes were made</a>. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.</li><li><strong>ShareAlike </strong>— If you remix, transform, or build upon the material, you must distribute your contributions under the <a id="same_license_popup" class="helpLink" title="" tabindex="0" href="https://creativecommons.org/licenses/by-sa/4.0/" data-original-title="">same license</a> as the original.</li><li><strong>No additional restrictions</strong> — You may not apply legal terms or <a id="technological_measures_popup" class="helpLink" title="" tabindex="0" href="https://creativecommons.org/licenses/by-sa/4.0/" data-original-title="">technological measures</a> that legally restrict others from doing anything the license permits.</li></ul></div> Early Detection of Diabetes Mellitus in Women via Machine Learning https://journal.umy.ac.id/index.php/jet/article/view/24287 <p><em>Diabetes Mellitus (DM) is a major global health concern, responsible for 6.7 million deaths in 2021, equivalent to one death every five seconds. In Indonesia, it was the third leading cause of death in 2019, with a mortality rate of approximately 57.42 per 100,000 people. This study focuses on developing a diabetes prediction model using machine learning, aiming for an accuracy of at least 85%, and incorporates a chatbot-based system to identify potential diabetes in women. The research utilizes primary data, including glucose levels, blood pressure, body mass index, and age, as well as secondary data, such as pregnancy-related metrics, from the UCI Pima Indians Diabetes Database, which contains 768 records with eight attributes. The study evaluates the performance of three machine learning algorithms: Decision Tree, Logistic Regression, and Random Forest, using metrics such as accuracy, precision, recall, and F1-score. Among these models, the Decision Tree demonstrates excellent performance for Class 0, with precision, recall, and F1-score all at 0.97. However, its performance for Class 1, while decent, leaves room for improvement, achieving a precision of 0.80 and a recall of 0.84, resulting in an F1-score of 0.82. Logistic Regression also performs well for Class 0, with a precision of 0.95 and a recall of 0.99, yielding an F1-score of 0.97. Yet, it struggles with Class 1, where its precision is high at 0.93, but its recall drops significantly to 0.68, producing an F1-score of 0.79. Lastly, Random Forest emerges as the best-performing model overall, achieving an accuracy of 0.96. It excels for Class 0, with a precision of 0.96 and a recall of 0.99, leading to an F1-score of 0.97. For Class 1, it maintains high precision (0.93) but exhibits moderate recall (0.74), resulting in an F1-score of 0.82.</em></p> Ahmad Zaki Arrayyan Sisdarmanto Adinandra Copyright (c) 2025 Journal of Electrical Technology UMY https://creativecommons.org/licenses/by-sa/4.0 2025-04-17 2025-04-17 8 2 44 50 10.18196/jet.v8i2.24287 Advancing Cardiovascular Risk Prediction: A Review of Machine Learning Models and Their Clinical Potential https://journal.umy.ac.id/index.php/jet/article/view/25208 <em>This study conducts a systematic literature review on the application of machine learning technology in predicting heart disease risk. A total of 20 recent articles were identified and analyzed to evaluate the most used algorithms and their performance. The results show that Random Forest (RF), Logistic Regression (LR), Support Vector Machine (SVM), Decision Tree (DT), and K-Nearest Neighbors (KNN) are the most frequently applied models, with average accuracies of 89.56%, 83.14%, 83.14%, 82.57%, and 79.40%, respectively. In addition to comparing accuracy, this review also evaluates the strengths, weaknesses, and potential challenges of implementing each algorithm in clinical applications. The analysis reveals that Random Forest demonstrates high stability and accuracy, making it the leading candidate for large-scale clinical heart disease risk prediction applications. These findings are expected to provide new insights for the development of more accurate, reliable, and clinically deployable machine learning predictive models to support medical decision-making.</em> Rona Regen Hendra Setiawan Copyright (c) 2025 Journal of Electrical Technology UMY https://creativecommons.org/licenses/by-sa/4.0 2025-04-21 2025-04-21 8 2 51 59 10.18196/jet.v8i2.25208