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All Journal JOURNAL OF APPLIED INFORMATICS AND COMPUTING JATI (Jurnal Mahasiswa Teknik Informatika)
Ayuningtiyas, Pratiwi
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Computer Science & IT

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ANALISIS FAKTOR RISIKO PEMICU SERANGAN JANTUNG DI INDONESIA, MENGGUNAKAN METODE KLASIFIKASI (DECISION TREE, NAIVE BAYES, DAN RANDOM FOREST) Andini Bahri, Cheisya; Tri Zafira, Zahra; Ayuningtiyas, Pratiwi; Al-Farisy, M Hadi; Alfarizi, M.; Ditha Tania, Ken; Meiriza, Allsela
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 4 (2025): JATI Vol. 9 No. 4
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i4.13945

Abstract

Serangan jantung merupakan penyakit yang menyebabkan tingginya angka kematian di Indonesia, di mana penyakit tersebut dipengaruhi oleh beberapa faktor dan risiko, yaitu konsumsi alkohol, kebiasaan merokok, tingkat depresi, dan juga hipertensi. Dilakukannya penelitian ini dengan tujuan untuk melakukan kegiatan analisis pengaruh dari faktor-faktor tersebut dengan penyakit serangan jantung, penelitian ini menggunakan metode klasifikasi (Decision Tree, Naïve Bayes, dan Random Forest, berdasarkan data yang terdapat pada aplikasi Kaggle dengan judul Heart Attack Indonesia. Analisis pada penelitian ini dilakukan dengan bantuan tools (RapidMiner) untuk membandingkan performa dari ketiga metode klasifikasi dengan perbandingan rasio 70/30, 80/20, dan 90/10. Sehingga mendapatkan hasil analisis tertinggi yaitu metode Decision Tree dan Naïve Bayes memiliki akurasi yang sama, yaitu 74.97%, sedangkan metode Random Forest memiliki akurasi yang lebih rendah, yaitu 67.14%. Berdasarkan evaluasi menggunakan kurva ROCs, Decision Tree terbukti lebih efektif dalam mengklasifikasikan faktor risiko dibandingkan metode lainnya.
ANALISIS PENGARUH PENGGUNAAN METODE PEMBAYARAN PAYLATER TERHADAP POLA KONSUMTIF GENERASI MUDA: STUDI KASUS : MAHASISWA UNIVERSITAS SRIWIJAYA Fathoni, Fathoni; Ibrahim, Ali; Fatihaturrahmah, Aisyah; Cahya Aulia, Syifa; Ayuningtiyas, Pratiwi; Tri Zafira, Zahra
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 4 (2025): JATI Vol. 9 No. 4
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i4.14153

Abstract

Sentiment-Based Knowledge Discovery pada Aplikasi iPusnas Menggunakan Metode Machine Learning dan Deep Learning Ayuningtiyas, Pratiwi; Tania, Ken Ditha; Sari, Winda Kurnia
Journal of Applied Informatics and Computing Vol. 9 No. 5 (2025): October 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i5.10258

Abstract

iPusnas is a digital library application developed by the National Library of the Republic of Indonesia since 2016, with over 1.5 million users. Despite its potential to improve literacy, the application has only received a rating of 2.0. This study conducted sentiment analysis on 7.596 reviews obatained through web scraping using the Google Play Scraper Library. The data then underwent preprocessing steps including case folding, data cleaning, tokenization, stopword removal, and stemming. Reviews were automatically labeled based on the rating score, where scores of 1-3 were categorized as negative, with 5.174 entries, and scores 4-5 as positive, with 2.422 entries. The dataset was split in an 80:20 ratio, with 80% for training, and 20% for testing. The machine learning models tested were SVM, Random Forest, CNN, LSTM, and RNN. The evaluation metrics included accuracy, precision, recall, F1-score, and confusion matrix. CNN and LSTM achieved the highest accuracy (82%), Random Forest and CNN achieved the highest precision (81%), RNN the highest recall (79%) and LSTM the highest F1-score (79%). McNemar test showed a significant difference between Random Forest and CNN, Random Forest and LSTM, and between RNN and LSTM, while CNN and LSTM, as well as CNN and RNN, showed no significant difference.
Co-Authors Al-Farisy, M Hadi Alfarizi, M. Ali Ibrahim Allsela Meiriza, Allsela Andini Bahri, Cheisya Cahya Aulia, Syifa Fathoni Fathoni Fatihaturrahmah, Aisyah Ken Ditha Tania Tri Zafira, Zahra Winda Kurnia Sari