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All Journal JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) JTIULM (Jurnal Teknologi Informasi Universitas Lambung Mangkurat) Jurnal Computer Science and Information Technology (CoSciTech)
Octariadi, Barry Ceasar
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Computer Science & IT Education Electrical & Electronics Engineering Engineering

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PERBANDINGAN FUNGSI OPTIMIZER PADA IDENTIFIKASI DIABETES MENGGUNAKAN METODE FEED FORWARD Setyawan, Rizki Fajar; Abdullah, Asrul; Octariadi, Barry Ceasar
JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Vol 11, No 1 (2026)
Publisher : STKIP PGRI Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jipi.v11i1.7757

Abstract

Identifikasi dini diabetes merupakan kebutuhan mendesak untuk mencegah komplikasi serius dan mengurangi beban kesehatan global. Penelitian ini bertujuan untuk membandingkan kinerja fungsi optimizer pada model Feed Forward Neural Network (FFNN) dalam mengklasifi-kasikan data diabetes. Optimizer yang diuji meliputi RMSprop, Adam, Adagrad, dan Stochastic Gradient Descent (SGD). Dataset diabetes dari platform Kaggle, yang terdiri dari 768 sampel dengan 9 fitur, dibagi men-jadi data latih dan uji dengan rasio 80:20. Evaluasi model dilakukan menggunakan metrik Accuracy, Precision, Recall, dan F1-Score ber-dasarkan Confusion Matrix. Hasil penelitian menunjukkan bahwa RMSprop memberikan performa terbaik dengan akurasi sebesar 0,759740, Precision 0,660377, Recall 0,648148, dan F1-Score 0,654206, diikuti oleh Adam dengan akurasi 0,746753. RMSprop menunjukkan generalisasi yang lebih baik pada data uji berkat mekanisme pembaruan bobot adaptifnya. Penelitian ini merekomendasikan RMSprop sebagai optimizer optimal untuk model FFNN dalam identifikasi diabetes, memberikan kontribusi bagi pengembangan alat diagnosis yang lebih akurat dan efisien.
Classification Of Anxiety Levels Based On General Anxiety Disorder Data Using The XGBoost Method Rahman, Rovi Royyan; Octariadi, Barry Ceasar; Sucipto
Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM) Vol. 11 No. 1 (2026)
Publisher : Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtiulm.v11i1.495

Abstract

Anxiety is a common psychological disorder experienced by individuals and has the potential to reduce quality of life if not treated properly. This study aims to classify anxiety levels into four categories, namely normal, mild, moderate, and severe, using the Extreme Gradient Boosting (XGBoost) algorithm. The data used came from the Kaggle platform, consisting of 671 entries with 11 anxiety symptom features and one target label. The research process involved data exploration (EDA), handling missing values, data balancing using the Synthetic Minority Oversampling Technique (SMOTE), and feature selection based on multivariate correlation. Two models were built with training and test split ratios of 70:30 and 80:20. The evaluation results showed that the XGBoost model achieved good classification performance, with accuracy, precision, recall, and F1-score reaching 93% after optimization. The best model was then implemented as a Streamlit web application to facilitate interactive prediction of anxiety levels. This research is expected to be a tool for initial screening of anxiety disorders and a reference in the development of machine learning-based classification systems in the field of mental health.
Implementasi Fuzzy Mamdani untuk Rekomendasi Total Kalori Harian Bagi Penderita Diabetes Tipe 2 : Implementasi Fuzzy Mamdani untuk Rekomendasi Total Kalori Harian Bagi Penderita Diabetes Tipe 2 Widiasari, Putu Puja Diva; Siregar, Alda Cendekia; Octariadi, Barry Ceasar
Computer Science and Information Technology Vol 7 No 1 (2026): Jurnal Computer Science and Information Technology (CoSciTech)
Publisher : Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/coscitech.v7i1.11027

Abstract

Type 2 Diabetes Mellitus is a metabolic disease that requires precise regulation of daily calorie intake to maintain stable blood sugar levels. Determining calorie requirements is not simple because it must take into account factors such as age, gender, body mass index (BMI), and physical activity level. This study aims to develop a Mamdani fuzzy logic-based expert system to provide recommendations for daily calorie requirements for people with type 2 diabetes. The system process is carried out through the stages of fuzzification, inference, aggregation, and defuzzification using the centroid method. Testing was conducted using 20 type 2 diabetes patient data with input variables of age, height, weight, gender, and physical activity. The testing methods used were accuracy and black-box. Accuracy testing was performed by comparing the system's results with manual calculations based on medical standards, while black-box testing ensured that the system functioned as designed. The results showed that the system had an accuracy rate of 80%, making it sufficiently valid and usable as a tool for recommending daily calorie intake to support diet management for type 2 diabetes patients.
Co-Authors Alda Cendekia Siregar Asrul Abdullah Barry Ceasar Octariadi Rahman, Rovi Royyan Sucipto Widiasari, Putu Puja Diva