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All Journal Jurnal EECCIS MATEMATIKA DAN PEMBELAJARAN
M. Sarosa
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Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Environmental Science Mathematics

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Perbandingan Kinerja Algoritma C.45 dan AHP-TOPSIS Sebagai Pendukung Keputusan Proses Seleksi Penerima Beasiswa Aziz Musthafa; Hadi Suyono; M. Sarosa
Jurnal EECCIS Vol 9, No 2 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (559.947 KB)

Abstract

Considering the importance of the scholarship, it is a challenge for the head of higher education institutions to make an accurate decision on giving scholarships and managing data of the recipients. However, the implementation is still less efficient in terms of time and allow for errors due to how to select and transfer of data recipients still use manual way. Decision support system is expected to improve performance and simplify the process of selection of recipients. In this research used data Bidik Misi scholarship. The input of this system is the personal data of applicants, the data of parents and academic data. Sample registries from 2013 - 2014 is used in this research. The data of applicants in 2013 are used for training. Whereas the data of applicants in 2014 are used for testing or target data. Input data will be processed using data mining techniques, C4.5 algorithm and Multiple Attribute Decision Making (MCDM) AHP-TOPSIS algorithm. The output of this system is a recommendation of applicants who are accepted and not accepted in Bidik Misi Scholarship and analysis algorithms based on performance.The test results for Bidik Misi Scholarship show that C4.5 algorithm got 85% on precision, 85% on recall and 93% on accuracy, and AHP-TOPSIS got 69% on precision, 69% on recall, and 87% on accuracy. In this research, C4.5 algorithm shows a better performance than AHP-TOPSIS algorithm.
DEVELOPMENT OF AN INTERACTIVE VISUALIZATION APLICATION TO ASSIST VOCATIONAL STUDENTS IN UNDERSTANDING TRIGONOMETRY CONTENT Widjajanti, Kristina; M. Sarosa; Selviana, Vuvut; Maryanty, Yanty
MATEMATIKA DAN PEMBELAJARAN Vol. 13 No. 2 (2025): MATEMATIKA DAN PEMBELAJARAN
Publisher : IAIN Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33477/mp.v13i2.11767

Abstract

Trigonometry is a fundamental competency that holds particular importance for vocational students, as it is widely applied in fields such as engineering, design, architecture, and other practical domains. However, many vocational students still encounter difficulties, particularly in visualizing right-angled triangles in non-standard orientations, which hinders their understanding of trigonometric ratios. This study is a development research that produced an interactive visual application called AVIGO. The application provides concise learning materials, exercises involving right-angled triangles in both standard and non-standard positions, and contextual problems relevant to daily life. The findings of this study offer recommendations for mathematics education practitioners regarding the use of AVIGO as a learning medium to enhance students’ comprehension of trigonometric ratios. Furthermore, AVIGO is expected to foster students’ motivation to engage actively in learning trigonometry, thereby supporting the improvement of their conceptual understanding.
Co-Authors Aziz Musthafa Hadi Suyono Selviana, Vuvut Widjajanti, Kristina Yanty Maryanty, Yanty