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All Journal Indonesian Journal of Artificial Intelligence and Data Mining Malcom: Indonesian Journal of Machine Learning and Computer Science PREDATECS: Public Research Journal of Engineering, Data Technology and Computer Science
Sari, Windy Junita
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering

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Performance Comparison of Random Forest, Support Vector Machine and Neural Network in Health Classification of Stroke Patients Sari, Windy Junita; Melyani, Nasya Amirah; Arrazak, Fadlan; Anahar, Muhammad Asyraf Bin; Addini, Ezza; Al-Sawaff, Zaid Husham; Manickam, Selvakumar
Public Research Journal of Engineering, Data Technology and Computer Science Vol. 2 No. 1: PREDATECS July 2024
Publisher : Institute of Research and Publication Indonesia (IRPI).

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/predatecs.v2i1.1119

Abstract

Stroke is the second most common cause of death globally, making up about 11% of all deaths from health-related deaths each year, the condition varies from mild to severe, with the potential for permanent or temporary damage, caused by non-traumatic cerebral circulatory disorders. This research began with data understanding through the acquisition of a stroke patient health dataset from Kaggle, consisting of 5110 records. The pre-processing stage involved transforming the data to optimize processing, converting numeric attributes to nominal, and preparing training and test data. The focus then shifted to stroke disease classification using Random Forest, Support Vector Machines, and Neural Networks algorithms. Data processing results from the Kaggle dataset showed high performance, with Random Forest achieving 98.58% accuracy, SVM 94.11%, and Neural Network 95.72%. Although SVM has the highest recall (99.41%), while Random Forest and ANN have high but slightly lower recall rates, 98.58% and 95.72% respectively. Model selection depends on the needs of the application, either focusing on precision, recall, or a balance of both. This research contributes to further understanding of stroke diagnosis and introduces new potential for classifying the disease.
Comparative Analysis of Weather Image Classification Using CNN Algorithm with InceptionV3, DenseNet169 and NASNetMobile Architecture Models Wulandari, Vina; Sari, Windy Junita; Al-Sawaff, Zaid Husham; Manickam, Selvakumar
Public Research Journal of Engineering, Data Technology and Computer Science Vol. 2 No. 2: PREDATECS January 2025
Publisher : Institute of Research and Publication Indonesia (IRPI).

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/predatecs.v2i2.1608

Abstract

Rapid weather changes have a significant impact on various aspects of human life, including social and economic development. Weather analysis traditionally relies on data from Doppler radar, weather satellites, and weather balloons. However, advancements in computer vision technology provide new opportunities to enhance weather prediction systems through image recognition and classification. Studies evaluating and comparing deep learning architectures for weather image classification remain limited.This research utilizes Convolutional Neural Networks (CNN) to classify weather images using three architectures: InceptionV3, DenseNet169, and NASNetMobile. The results show that InceptionV3 achieved 97.94% accuracy on training data, 92.34% on validation data, and 93.81% on test data. DenseNet169 achieved 98.09% accuracy on training data, 88.46% on validation data, and 92.33% on test data. NASNetMobile achieved 96.51% accuracy on training data, 87.82% on validation data, and 89.97% on test data. Based on these results, InceptionV3 is the optimal choice for weather classification due to its consistent performance.This research addresses the gap in evaluating CNN architectures for weather data and contributes to improving weather monitoring systems, early disaster warnings, and applications reliant on accurate predictions. These findings also provide a foundation for the development of advanced technologies in image analysis and weather forecasting in the future.
Implementasi Algoritma Naïve Bayes Classifier dan K-Nearest Neighbor untuk Klasifikasi Penyakit Ginjal Kronik: Implementation of Naïve Bayes Classifier and K-Nearest Neighbor Algorithms for Chronic Kidney Disease Classification Wulandari, Vina; Sari, Windy Junita; Alfian, Zhevin; Legito, Legito; Arifianto, Teguh
MALCOM: Indonesian Journal of Machine Learning and Computer Science Vol. 4 No. 2 (2024): MALCOM April 2024
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/malcom.v4i2.1229

Abstract

Ginjal adalah salah satu organ vital yang memiliki peranan sangat penting dalam tubuh dan memiliki fungsi untuk menjaga keseimbangan metabolishme tubuh dengan mengeluarkan racun dari dalam tubuh dan limbah metabolisme dalam bentuk urine. Penyakit ginjal kronik ialah kondisi di mana ginjal mengalami penurunan fungsi yang berlangsung dalam jangka waktu yang lama. Jumlah nilai prelevansi penderita PGK di Indonesia yang terbilang besar. Oleh karena itu dilakukan klasifikasi Penyakit ginjal kronik dengan algoritma Naïve Bayes Classifier (NBC) dan K- nearest Neighbor (KNN) yang mempunyai nilai akurasi yang baik. Berdasarkan Hasil penelitian yang diperoleh klasifikasi PGK menggunakan algoritma NBC memiliki akurasi sebesar 94,25%, rata-rata nilai recall 94,23%, presisi 98,40% dan AUC 0,961, Sedangkan klasifikasi menggunakan algoritma KNN memiliki akurasi sebesar 77,79%, recall 95,06%, presisi 80,20% dan AUC sebesar 0,627. Dari kedua hasil menunjukan bahwa klasifikasi menggunakan algoritma NBC lebih baik dibanding  menggunakan algoritma KNN.
Enhancing Student Performance Classification Through Dimensionality Reduction and Feature Selection in Machine Learning Mustakim, Mustakim; Sari, Windy Junita; Ulfa, Fara
Indonesian Journal of Artificial Intelligence and Data Mining Vol 8, No 3 (2025): November 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ijaidm.v8i3.37783

Abstract

Education plays an important role in shaping the intellectual and character of the nation's next generation. However, poor student academic performance is a major challenge, especially regarding student retention and dropout risk. This study aims to evaluate the performance of machine learning algorithms, namely K-Nearest Neighbor (K-NN), Light Gradient Boosting Machine (LightGBM), and Extreme Gradient Boosting (XGB), and analyze the effect of dimensionality reduction using Principal Component Analysis (PCA) and feature selection with Recursive Feature Elimination (RFE) on student performance prediction accuracy. The research dataset consists of 395 student samples with demographic, social, and academic attributes. The results show that XGB has the best performance with 98.32% accuracy and can predict all classes with perfect 100% accuracy. LightGBM and K-NN achieved 94.87% and 93.88% accuracy, respectively. The best attributes affecting student performance were found in the “Highly Prioritized” category, including study time, family support, family, and health. Although PCA slightly degraded the model performance, feature selection with RFE significantly improved accuracy. This study concludes that proper algorithm selection and focus on relevant attributes can improve prediction accuracy and efficiency, making an important contribution to the development of more effective education prediction systems.
Co-Authors Addini, Ezza Al-Sawaff, Zaid Husham Alfian, Zhevin Anahar, Muhammad Asyraf Bin Arrazak, Fadlan legito, Legito Manickam, Selvakumar Melyani, Nasya Amirah Mustakim Mustakim TEGUH ARIFIANTO, TEGUH Ulfa, Fara Wulandari, Vina