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All Journal Indonesian Journal of Applied Informatics JISKa (Jurnal Informatika Sunan Kalijaga)
Juwita Stefany Hutapea
Universitas Logistik dan Bisnis Internasional
Computer Science & IT Electrical & Electronics Engineering Library & Information Science

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Klasifikasi Tindakan Korektif Iregularitas dengan Penerapan Algoritma CART pada Perusahaan Logistik Juwita Stefany Hutapea; Nisa Hanum Harani
IJAI (Indonesian Journal of Applied Informatics) Vol 9, No 2 (2025)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijai.v9i2.98539

Abstract

AbstrakPerusahaan logistik memiliki peran penting dalam menjaga kelancaran rantai pasok dan distribusi barang. Namun, sering kali terjadi iregularitas dalam proses pengiriman yang dapat menghambat operasional dan menurunkan kualitas layanan. Klasifikasi tindakan korektif iregularitas bertujuan untuk mengklasifikasikan dan memprediksi tindakan korektif yang dibutuhkan dalam melakukan evaluasi iregularitas menggunakan algortima Classification and Regression Tree (CART) dan metodologi CRISP-DM untuk tahapan penelitian. Data historis iregularitas dikumpulkan dari sebuah perusahaan logistik dan diolah. Model CART diterapkan dengan berbagai parameter tuning untuk mendapatkan performa terbaik. Hasil evaluasi menunjukkan bahwa model yang dibangun memiliki akurasi 90%, precision 0.97, recall 0.90, dan F1-score 0.92. Penelitian ini membuktikan bahwa algoritma CART cukup baik dalam mengklasifikasikan tindakan korektif dan memprediksi tindakan yang tepat. Sistem yang dihasilkan dapat membantu meningkatkan efisiensi operasional perusahaan logistik.===================================================Abstract :Logistics companies play a crucial role in ensuring the smooth flow of the supply chain and distribution of goods. However, irregularities in the delivery process often occur, which can disrupt operations and reduce service quality. The classification of corrective actions for irregularities aims to classify and predict the corrective actions needed in evaluating irregularities using the Classification and Regression Tree (CART) algorithm and the CRISP-DM methodology for the research phases. Historical irregularity data was collected from a logistics company and processed. The CART model was applied with various parameter tuning to achieve optimal performance. Evaluation results show that the developed model has an accuracy of 90%, with precision, recall, and F1-score values to be specified. This study demonstrates that the CART algorithm is effective in classifying corrective actions and predicting the appropriate actions. The resulting system can help improve the operational efficiency of the logistics company.
Model Prediksi Risiko Kanker Serviks dengan Pendekatan Support Vector Machine Juwita Stefany Hutapea; Nisa Hanum Harani; Cahyo Prianto
JISKA (Jurnal Informatika Sunan Kalijaga) Vol. 11 No. 1 (2026): January 2026
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiska.5445

Abstract

Cervical cancer is one of the leading causes of death in women, especially in developing countries due to delays in early diagnosis. Developing a risk prediction model based on the Support Vector Machine (SVM) algorithm is one way to support a more accurate and efficient early detection process. The research object is medical records of female patients obtained from hospitals in Medan City, with a total of 164 patient data. The development process was carried out through the CRISP-DM stages, which include data cleaning, feature transformation, class balancing with SMOTE, and dimensionality reduction using PCA. The evaluation results showed that the best model was obtained with a PCA configuration with 9 principal components (90% variance) and a test size of 80:20, resulting in an accuracy of 88%, a precision of 88%, a recall of 84%, and an F1-score of 86%. Cross-validation evaluation with 5 folds provided the best average performance and the smallest standard deviation, indicating model stability. The final model was implemented in a web-based system to facilitate digital early detection. This study shows that SVM with the SMOTE and PCA approaches is effective in predicting cervical cancer risk accurately and efficiently.
Co-Authors Nisa Hanum Harani Prianto, Cahyo