Analisa Klasifikasi C4.5 Terhadap Faktor Penyebab Menurunnya Prestasi Belajar Mahasiswa Pada Masa Pandemi
(*)Khairunnissa Fanny Irnanda 
(STIKOM Tunas Bangsa, Pematangsiantar, Indonesia)
Dedy Hartama (STIKOM Tunas Bangsa, Pematangsiantar, Indonesia)
Agus Perdana Windarto (STIKOM Tunas Bangsa, Pematangsiantar, Indonesia)
(*) Corresponding Author
Submitted: January 9, 2021; Published: January 22, 2021
Abstract
The purpose of the study was to classify the factors causing the decline in student achievement during the pandemic using the C4.5 datamining method. Sources of research data were obtained by conducting interviews and distributing questionnaires to 7th semester students of the 2020-2021 school year information system study program. Attributes that used in the classification of the factors causing the decline in student achievement include: Learning Method (C1), Study Time (C2), Material Understanding (C3), Giving Assignments (C4) and Environment (C5). The results of the calculation show that the Material Understanding (C3) attribute is the attribute that most influences the decline in student learning achievement. Testing was also carried out using the help of Rapidminer software and obtained an accuracy of 97.5%.
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