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All Journal Indonesian Journal of Information System Indonesia Bergerak: Jurnal Hasil Kegiatan Pengabdian Masyarakat
Rifqi Rahmatika Az-Zahra
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Education Public Health

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Pengembangan Media Pembelajaran Aritmatika Sekolah Dasar Menggunakan Powerpoint Interaktif Sugianti Sugianti; Arin Yuli Astuti; Rifqi Rahmatika Az-Zahra
Indonesia Bergerak : Jurnal Hasil Kegiatan Pengabdian Masyarakat Vol. 2 No. 3 (2024): Juli : Jurnal Hasil Kegiatan Pengabdian Masyarakat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/inber.v2i3.488

Abstract

The influence of early mathematics learning and learning motivation on student learning outcomes is very significant [1]. Students' numeracy literacy skills need to be supported by the ability to learn mathematics as early as possible. Advanced mathematics learning needs to be supported by good arithmetic skills. Every learning process is expected to produce good learning outcomes. Conventional mathematics learning is difficult for low-level students to understand. Guidebooks that are in accordance with the learning curriculum tend to present mathematical concepts that are textual. In order for mathematics learning to be more interesting for students, it is necessary to develop learning media that are easily accessible to students and educators. One application that can be used is interactive Powerpoint [2]. In this community service, a learning media about arithmetic was developed that underlies every logic of calculation in advanced mathematics. Assistance was given to students in grade III of elementary school, with the pretest method, presentation of material using interactive Powerpoint media, and posttest. The validation test of the learning media was carried out by educators by providing an average test result of 84.36%. The results of this community service state that arithmetic learning media using interactive Powerpoint can be used in grade III of elementary school.
Recognition of the Lima Pandawa Shadow Puppet characters utilizing Principal Component Analysis (PCA) for feature extraction and K-Nearest Neighbor (KNN) for classification Ida WIdaningrum; Indah Puji Astuti; Dyah Mustikasari; Khoiru Nurfitri; Rifqi Rahmatika Az-Zahra; Rhesma Intan Vidyastari; Ali Selamat
Indonesian Journal of Information Systems Vol. 8 No. 1 (2025): August 2025
Publisher : Program Studi Sistem Informasi Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/ijis.v8i1.11032

Abstract

The traditional type of puppet-shadow play, Wayang Kulit, is an integral component of Indonesian culture. The Pandawa Lima, protagonists in this artistic medium, have great importance not just in narrative but also in embodying moral and ethical principles. The automated identification of these characters can optimize a range of applications, such as instructional resources, digital preservation, and interactive displays. This research intends to maximize the advantages of PCA and KNN by utilizing their respective strengths: PCA's capacity to decrease data dimensionality and KNN's efficacy in classification tasks. An expected outcome of this combination is an enhancement in recognition accuracy without compromising computational efficiency. The classification matrix indicates that the model achieved a 78% accuracy rate. Class-specific accuracy, recall, and F1-scores are as follows: arjuna achieves a precision of 0.85, recall of 0.91, and F1 Score of 0.87. Macro averages for precision, recall, and F1 are 0.77, 0.76, and 0.74, respectively. Weighted averages for these metrics are 0.80, 0.78, and 0.77, respectively. The model exhibits strong performances on Arjuna, Sadewa, and Yudistira, but encounters difficulties with Bima and Nakula.
Co-Authors Ali Selamat Arin Yuli Astuti Dyah Mustikasari Ida Widaningrum Indah Puji Astuti Khoiru Nurfitri Rhesma Intan Vidyastari Sugianti Sugianti