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All Journal Jurnal Riset Informatika Jurnal Informatika Teknologi dan Sains (Jinteks)
Kholifah Dwi Annurrahma
Universitas Muhammadiyah Kalimantan Timur
Computer Science & IT Control & Systems Engineering

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ANALISIS KEPUASAAN PENGGUNA APLIKASI DONORKU DENGAN PENDEKATAN METODE RANDOM FOREST DENGAN SMOTE Muhammad Fauzan Nur Ilham; Kholifah Dwi Annurrahma; Pandu Wirayuda; Rudiman Rudiman
Jurnal Informatika Teknologi dan Sains (Jinteks) Vol 6 No 3 (2024): EDISI 21
Publisher : Program Studi Informatika Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51401/jinteks.v6i3.4229

Abstract

Penelitian ini menganalisis kepuasan pengguna terhadap Aplikasi Donorku di Google Play Store menggunakan analisis sentimen dengan algoritma Random Forest. Di era digital, aplikasi mobile seperti Donorku sangat penting untuk memfasilitasi donasi darah di Indonesia. Ulasan pengguna di Google Play Store seringkali tidak cukup representatif. Data dikumpulkan menggunakan scraping, diikuti oleh prapemrosesan teks seperti pembersihan, tokenisasi, normalisasi, dan stemming. Data yang telah diproses dibobotkan menggunakan metode TF-IDF dan dibagi menjadi data latih dan data uji. Teknik SMOTE digunakan untuk mengatasi ketidakseimbangan kelas. Model Random Forest mengklasifikasikan sentimen pengguna, dievaluasi dengan akurasi, presisi, recall, dan F1-Score. Hasilnya menunjukkan model dapat mengidentifikasi pola ketidakpuasan pengguna secara efektif. Memahami persepsi pengguna membantu pengembang meningkatkan layanan Donorku. Penelitian ini menunjukkan efektivitas teknologi analisis sentimen dalam memahami preferensi pengguna dan meningkatkan aplikasi donasi darah.
Design of a Meeting Attendance System Based on Dynamic QR Code with Universally Unique Identifier (UUID v4) Kholifah Dwi Annurrahma; Sayekti Harist Suryawan; Abdul Rahim
Jurnal Riset Informatika Vol. 7 No. 4 (2025): September 2025
Publisher : Kresnamedia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34288/jri.v7i4.416

Abstract

Manual attendance systems are still widely used in various institutions, including the Quality Assurance Agency of Muhammadiyah University of East Kalimantan (LJM UMKT), despite their limitations such as vulnerability to data manipulation, slow recapitulation, and paper dependency. This study aims to design and implement a digital meeting attendance system using dynamic QR Codes generated with UUID version 4, combined with GPS-based location validation. The system was developed using the prototyping method through stages of requirements analysis, UML-based system modeling, technical design with Flask and MySQL, prototype development, testing, and evaluation. System testing was carried out using the black-box method to verify functional performance, while evaluation was conducted using the Technology Acceptance Model (TAM), focusing on three constructs: Perceived Usefulness (PU), Perceived Ease of Use (PEOU), and Behavioral Intention to Use (BI). The testing results demonstrate that the system runs stably and effectively validates attendance based on time and location. Evaluation with 16 respondents indicated high user acceptance, with PU at 94.6%, PEOU at 88%, and BI at 96%. These findings suggest that the QR Code-based attendance system with UUID v4 significantly improves efficiency, accuracy, and security in recording meeting attendance and has strong potential for broader implementation in educational institutions and organizations.
Co-Authors Abdul Rahim Muhammad Fauzan Nur Ilham Pandu Wirayuda Rudiman Rudiman Sayekti Harist Suryawan