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Khoiriyah Namira Istiqa
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Penerapan Algoritma C4.5 Untuk Klasifikasi Kasus Perceraian Di Indonesia Edy Nurmansyah; Khoiriyah Namira Istiqa; Muhammad Muiddudin; Samin Arizal; Sifa Dwi Ahmad
Jurnal Riset Multidisiplin Edukasi Vol. 2 No. 12 (2025): Jurnal Riset Multidisiplin Edukasi (Edisi Desember 2025)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v2i12.1280

Abstract

Divorce cases in Indonesia continue to show a significant increase. Based on data from Statistics Indonesia (BPS) in 2024, hundreds of thousands of divorce cases were recorded across all provinces. This study applies the C4.5 algorithm to classify the level of divorce cases using a BPS dataset covering 34 provinces, consisting of 21 regular attributes and 2 specific attributes representing the contributing factors of divorce at the regional level. The model was built using cross-validation and pruning mechanisms to reduce the risk of overfitting. The evaluation results show that the model achieved an accuracy of 85.29%, with weighted mean recall and weighted mean precision in the range of 84–85%, indicating a relatively stable classification performance, although not yet optimal. The confusion matrix shows that most predictions are accurate, but there are still misclassifications, particularly between the Medium and High categories. The final decision tree reveals that the “Cerai Gugat” (lawsuit-initiated divorce) attribute serves as the main splitter at the root node, followed by the attribute “Continuous Conflicts and Disputes” at the subsequent level. This indicates that these two attributes have dominant contributions in determining the classification category of divorce cases. Overall, this study demonstrates that the C4.5 algorithm is quite effective in identifying divorce patterns based on BPS data and has the potential to support the development of decision-support systems for government institutions.
PERANCANGAN DAN IMPLEMENTASI SISTEM PENGELOLAAN LAUNDRY ONLINE BERBASIS WEB Edi Nurmansyah; Khoiriyah Namira Istiqa; Muhammad Muiduddin; Samin Arizal; Sifa Dwi Ahmad
Jurnal Riset Multidisiplin Edukasi Vol. 2 No. 12 (2025): Jurnal Riset Multidisiplin Edukasi (Edisi Desember 2025)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v2i12.1411

Abstract

Advances in information technology have driven digital transformation in various fields, including the laundry service sector. This study aims to design and implement an online laundry management system based on pickup and delivery to improve operational efficiency and customer convenience in utilizing laundry services. This system was developed using the Waterfall methodology approach, which includes the stages of requirements analysis, system design, implementation, and testing. The main features implemented include user registration, pickup and delivery service ordering, laundry status tracking, transaction management, and automatic financial report generation. Testing results show that the system is capable of optimizing laundry business processes by reducing manual recording errors and speeding up service processes. In addition, the implementation of this system can increase customer satisfaction through information transparency and easy online access to services. Thus, this online laundry management system is expected to be an effective solution in supporting the digitization of laundry services in the modern era.  
Co-Authors Edi Nurmansyah Edy Nurmansyah Muhammad Muiddudin Muhammad Muiduddin Samin Arizal Sifa Dwi Ahmad