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All Journal Jurnal Transformatika Jurnal Informatika Upgris Jurnal Sains dan Informatika Jurnal Pengembangan Rekayasa dan Teknologi Jurnal Ilmiah Sinus Building of Informatics, Technology and Science Joined Journal (Journal of Informatics Education Journal of Computer System and Informatics (JoSYC) JITU : Journal Informatic Technology And Communication Information System Journal (INFOS) Bulletin of Computer Science Research Adopsi Teknologi dan Sistem Informasi Tematik The Indonesian Journal of Computer Science Jurnal DIMASTIK
Galet Guntoro Setiaji
Universitas Semarang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Mathematics Mechanical Engineering Social Sciences Transportation Other

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Analisis Perbandingan Algoritma K-Means dan K-Medoids untuk Pengelompokan Sentimen Ulasan Aplikasi E-Commerce Pecaro, R Immanuel Giovanni Italiano; Setiaji, Galet Guntoro; Rifa'i, Ahmad
Building of Informatics, Technology and Science (BITS) Vol 7 No 2 (2025): September 2025
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bits.v7i2.8145

Abstract

The growing digital technology has driven the rapid growth of E-Commerce applications, which is characterized by the number of similar applications available on the Google Play Store. This phenomenon has led to an increase in people's need for convenience in online shopping, as well as showing increasingly fierce competition in the digital marketplace. Reviews on E-Commerce applications in the Google Play Store often serve as a basis for users to decide whether to download an application. These reviews provide valuable insights, allowing users to assess whether the application is worth downloading. Shopee, one of the largest E-Commerce applications in Indonesia, currently has more than 15 million ratings and reviews on the Google Play Store. This study aims to compare the performance of the K-Means and K-Medoids algorithms in clustering numerical data from application reviews. Clustering was performed using the Clustering technique based on two numerical variables, namely score and thumbsupcount, to provide an initial overview of user opinion trends regarding the application. The dataset, consisting of 500 reviews, was collected from the Google Play Store in December 2024. The results Davies-Bouldin Index of the study indicate that K-Means outperforms K-Medoids, with a comparison score of 0.457 to 0.803.
Analisa Perbandingan Quality of Service Protokol VPN antara Protokol SSTP Dan Open VPN Berbasis Router Mikrotik Surono; Guntoro Setiaji, Galet
The Indonesian Journal of Computer Science Vol. 11 No. 1 (2022): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v11i1.3034

Abstract

The internet itself is a public network that can connect anyone into a very large network, and of course there are threats of data theft in it, VPN is a communication technology that allows an employee in the office to connect to a public network and use it to join the local network. . The advantage of a VPN is that the data sent via a VPN is encrypted so it is quite safe and the secret is maintained even though it is through the internet network, a comparison analysis of VPN performance between the SSTP (Secure Socket Tunneling Protocol) protocol and the Open VPN protocol will be carried out to determine the Quality Of Service (Qos) performance of both For this protocol, a study is needed to determine the use of the method so as to produce an optimal QOS (Quality of Service)
Meningkatkan Kinerja Decision Tree C4.5 dengan Seleksi Fitur Korelasi Pearson pada Deteksi Penyakit Diabetes Mohammad Burhan Hanif; Galet Guntoro Setiaji
The Indonesian Journal of Computer Science Vol. 11 No. 2 (2022): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v11i2.3087

Abstract

Diabetes sebuah penyakit yang menjadi momok seluruh dunia. Kerugianya tidak hanya pada penderita sendiri tetapi juga merambah ke banyak sektor. Baik di sektor pelayanan kesehatan dan sektor financial yang sangat menjadi beban tinggi yang perlu ditangani dengan baik dengan jalan pendeteksian penyakit diabetes sejak dini. Salah satu pendeteksian dini penyakit diabetes dapat memanfaatkan algoritma machine learning pada bidang data mining. Algoritma C4.5 merupakan algoritma machine learning yang memiliki tingkat akurasi dan kecepatan perhitungan tinggi dalam klasifikasi. Namun demikian algoritma C4.5 terganggu dengan data tak seimbang dan fitur data berdimensi tinggi. Pemanfaatan seleksi fitur menjadi salah satu penyelesain masalah data berdimensi tinggi. Algoritma Korelasi Pearson memiliki kemampuan dalam mengukur informasi antar fitur dan diterapkan dalam penelitian ini. Penggunaan Korelasi Pearson dianggap berhasil dalam meningkatkan kinerja algoritma C4.5 dalam deteksi awal penyakit diabetes. Keberhasilan ini terlihat pada hasil akurasi sebesar 95.31% tanpa korelasi pearson menjadi 96.16% dengan pemanfaatan korelasi pearson.
PENGENALAN TEKNOLOGI VIRTUAL TOUR REALITY PADA LINGKUNGAN SMA KESATRIAN 1 SEMARANG Guntoro Setiaji, Galet; Prathivi, Rastri; Asmiatun, Siti
Jurnal DIMASTIK Vol. 2 No. 2 (2024): Juli
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/dimastik.v2i2.8545

Abstract

Dimana sebuah informasi pada media elektronik yang sekarang sudah mengunakan teknologi informasi menjadi penting disaat kita mencari sebuah informasi, terutama dalam mencari sebuah sekolah, dimana orang tua atau siswa secara tidak langsung ingin mengenal lingkungan sekolahnya. Dan disaat pandemi covid 19 juga menjadikan kita tidak leluasa dalam menjalani aktifitas sehari-hari, sehingga kita tidak bisa melihat secara langsung ke sekolah. Dan kali ini pengabdian kepada Masyarakat dosen USM dengan Mitra SMK Kesatrian 1 Semarang, akan mengakat tema Pengenalan Virtual Reality. Dimana akan mengenalkan tools Photoshop dan 3DVista untuk membuat Virtual tour reality di SMK Kesatrian 1 Semarang.Diharapkan dengan penerapan Teknologi Virtual Reality ini, SMK Kesatrian 1 Semarang, bisa menjadikan media promosi bagi calon siswa dengan mengenalkan lingkungan sekolah. Dimana calon siswa dan orang tua murid bisa melihat secara langsung lingkungan SMK Kesatrian 1 Semarang secara Virtual Reality tanpa harus datang terlebih dahulu. Kata Kunci    : Virual Tour, 3D Vista, Photoshop,  SMK Kesatrian 1 Semarang
Pengembangan Aplikasi Keuangan Berbasis Web Menggunakan Laravel Filament di PT Kargo Transkontinental Retno Utami, Tri; Galet Guntoro Setiaji; Rifa'i, Ahmad
JITU Vol 9 No 2 (2025)
Publisher : Universitas Boyolali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36596/jitu.v9i2.2100

Abstract

PT Kargo Transkontinental, as a company engaged in the field of freight forwarding with a high transaction volume, faces significant operational challenges due to its reliance on manual financial recording processes. This dependence leads to delays in the preparation of financial reports, which can take up to two working days, and carries a potential error rate of up to 10% in cost recording. Such conditions pose a major obstacle to conducting accurate and timely profitability analysis. This study aims to design and develop a web-based financial application using the Laravel Filament framework to overcome these inefficiencies. To ensure a systematic development process, the research adopts the waterfall development method, which consists of the stages of requirements analysis, design, implementation, testing, and maintenance. System requirements were gathered through direct interviews with the company's finance division. The study produced a functional web application that successfully integrates modules for employee income, expenses, and loans, further enhanced with an innovative digital receipt feature to bolster accountability. The application features role-based access control for superadmins and staff and offers centralized reporting capabilities. In conclusion, the developed application streamlines the job costing process, elevates data accuracy, and accelerates financial reporting, thereby supporting more effective decision-making.
IMPLEMENTASI METODE SCRUM PADA APLIKASI WEB MANAJEMEN PEMBAYARAN KOS BERBASIS LARAVEL DAN FILAMENT Saputro, Rio Eko; Setiaji, Galet Guntoro; Rifa'i, Ahmad
Information System Journal Vol. 8 No. 02 (2025): Information System Journal (INFOS) - In Process
Publisher : Universitas Amikom Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24076/infosjournal.2025v8i02.2283

Abstract

Penelitian ini mengajukan solusi atas kendala operasional dalam manajemen kos konvensional melalui perancangan sebuah aplikasi web terintegrasi yang memusatkan fungsi pembayaran dan penanganan keluhan. Proses pengembangan mengadopsi metodologi Scrum dengan tumpukan teknologi modern: framework Laravel sebagai fondasi, toolkit Filament untuk akselerasi pembangunan antarmuka, dan library Filament Shield untuk implementasi kontrol akses berbasis peran. Hasil akhir penelitian adalah platform fungsional dengan arsitektur dua peran: peran Admin difasilitasi dengan dasbor analitik dan kontrol manajerial penuh, sementara peran User Kos memperoleh antarmuka yang terfokus untuk menyederhanakan interaksi pembayaran dan keluhan melalui widget informatif. Secara konklusif, sistem yang dikembangkan ini mampu meningkatkan transparansi manajerial dan kenyamanan penghuni, sekaligus memvalidasi kombinasi metodologi dan teknologi yang dipilih sebagai model implementasi yang praktis untuk mendukung digitalisasi sektor properti skala kecil.
Co-Authors Ahmad Rifai Ahmad Rifa’i April Firman Daru Astrid Novita Putri, Astrid Basworo Ardi Pramono Gunata, Krida Pandu Hafiq Ibnu Wardana Hakim, Adya Abdu Azizul Handini Arga Damar Rani Hanif, Mohammad Burhan Joko Suntoro Khoirudin Khoirudin, Khoirudin Maugy Al Kautsar Mohammad Burhan Hanif Mohammad Burhan Hanif Nurtriana Hidayati Pecaro, R Immanuel Giovanni Italiano Rastri Prathivi Retno Utami, Tri Rifa i, Ahmad Rifa'i, Ahmad Saifur Rohman Cholil Saputra, Satria Nugraha Saputro, Rio Eko Setiarso, Galih Siti Asmiatun, Siti Surono Surono Tirta Jurista Kumkamdhani Tirta Kumkamdani Veithzal Rivai Zainal Vensy Vydia Whisnumurti Adhiwibowo Wicaksana, Dinar Anggit Widiyanto, Max Teja Ajie Cipta