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All Journal Information Management For Educators And Professionals (IMBI) Joined Journal (Journal of Informatics Education JURNAL ILMIAH EDUKATIF Knowbase : International Journal of Knowledge in Database Jurnal Ilmiah Sistem Informasi dan Ilmu Komputer Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Ilmiah Teknik Informatika dan Komunikasi Salus Publica Journal of Information System and Education Development
Sarwo Derta
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Religion Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Implementation of the C4.5 Algorithm to Build A Prediction Model for Student Success in Database Courses Nanda Pratama Alfyandri; Hari Antoni Musril; Sarwo Derta
Knowbase : International Journal of Knowledge in Database Vol. 5 No. 2 (2025): December 2025
Publisher : Universitas Islam Negeri Sjech M. Djamil Djambek Bukittinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30983/knowbase.v5i2.10083

Abstract

This study aims to implement the C4.5 algorithm to build a model for predicting student success in database system courses in the Informatics and Computer Engineering Education study program at UIN Sjech M. Djamil Djambek Bukittinggi. Using the Knowledge Discovery in Database (KDD) approach, this study includes the stages of data selection, cleaning, transformation, modeling, and evaluation. Secondary data from the academic information system of students enrolled from 2018 to 2023 included 1,177 entries, which after cleaning resulted in 1,030 valid data. Predictor attributes consisted of academic factors such as Algorithm Logic scores, 1st semester Grade Point Average (GPA), attendance, and credit load, as well as non-academic factors such as gender and UKT (Tuition Fee Category). The target variable was student success status. Modeling was performed using Altair RapidMiner 2025 software with the C4.5 algorithm, resulting in a decision tree model. Evaluation showed an accuracy of 82.10%, recall of 69.58%, and precision of 62.51%, indicating the algorithm's effectiveness in classifying students as potentially successful or unsuccessful. This model identifies the most influential attributes, both academic and non-academic, on student success. Overall, the application of the C4.5 algorithm supports Educational Data Mining (EDM) in higher education, helping study programs improve the quality of learning and the effectiveness of data-based academic interventions.
Perancangan Sistem Informasi Rapor Kurikulum 2013 Berbasis Web Menggunakan Php Dan Mysql Di SDN 04 Talago Lubuk Sikaping Desi Syafitri; Hari Antoni Musril; Sarwo Derta; Riri Okra
Joined Journal (Journal of Informatics Education) Vol 7 No 2 (2024): Volume 7 Nomor 2 (2024)
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/joined.v7i2.3440

Abstract

Penelitian ini dilatarbelakangi oleh sekolah yang masih melakukan proses pengolahan nilai rapor kurikulum 2013 secara manual sehingga memerlukan banyak waktu. Jumlah siswa di SDN 04 Talago Lubuk Sikaping yang banyak menyebabkan sering terjadi kesalahan dalam penginputan nilai siswa. Hal ini menyebabkan proses pengolahan nilai rapor kurikulum 2013 kurang efektif dan efisien, sehingga perlu adanya sistem informasi rapor kurikulum 2013 di SDN 04 Talago Lubuk Sikaping. Metode penelitian yang digunakan adalah metode penilitian Research And Development (R&D), yaitu sebuah metode untuk menghasilkan sebuah produk, sedangkan model pengembangan sistem menggunakan Sistem Development Life Cycle (SDLC) dengan menerapkan model incremental yang terdiri dari tahap Analysis, Design, Code, dan Test. Uji produk menggunakan standar ISO/IEC 25010 yang terdiri dari pengujian Functional Suitability, Compability dan Usability. Juga dilakukan pengujian validitas kebahasaan terhadap sistem informasi. Berdasarkan hasil penelitian yang penulis lakukan, penulis mampu membuat produk sistem informasi rapor kurikulum 2013 di SDN 04 Talago Lubuk Sikaping berbasis web menggunakan bahasa pemrograman PHP dan MySQL.
Co-Authors Desi Syafitri Efandari, Ariati Fikri Muhammad Firdaus Annas Hari Antoni Musril Lismawarti, Fitra Liza Efriyanti, liza Liza Efriyanti, Liza Efriyanti Marselino Syahputra Muhammad Anis Muharram Muhammad Iqbal Haikal bin Samia’an Nanda Pratama Alfyandri Riri Okra Sadar Martua Haholongan Sir Salfina, Rani Sauki Alfajri Sisca Wendi Harisa Sri Atiqah Tiara Hardiana Putri Tuti Yuniza Zakir, Supratman