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All Journal JURNAL ELEKTRO Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Nuansa Informatika
Henoch Juli Christanto
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Environmental Science Health Professions Medicine & Pharmacology Public Health

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Pelatihan Desain Grafis Untuk Meningkatkan Kreativitas Siswa SMAK 7 Penabur Jakarta Menggunakan Canva dan Photopea Eugenius Kau Suni; Stephen Aprius Sutresno; Henoch Juli Christanto; Julius Victor Manuel Bata; Denny Jean Cross Sihombing; Gregorius Airlangga; Pedro Manuel Lamberto Buu Sada
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 6 No 3 (2024): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v6i3.835

Abstract

Kebiasaan pelajar yang lebih banyak menghabiskan waktunya untuk bermain gadget bisa berdampak pada menurunnya kreativitas. Salah satu upaya untuk meningkatkan kreativitas siswa-siswi di SMAK 7 Penabur Jakarta dengan menggelar kegiatan pelatihan desain grafis. Tim dosen dari program studi Sistem Informasi Universitas Katolik Indonesia Atma Jaya memberikan pelatihan kepada 27 orang pelajar dari kelas X, XI, dan XII untuk membuat karya desain grafis berupa poster dan flyer yang diselenggarakan selama 2 hari pada Kamis dan Jumat, 09-10 November 2023. Pelatihan tersebut menggunakan aplikasi desain grafis berbasis web yang dapat diakses secara online dan gratis yaitu Canva dan Photopea. Hasilnya menunjukkan bahwa terjadi peningkatan kreativitas siswa dimana nilai rata-rata hasil karya mereka berada pada skor 86,5 dengan kategori baik sekali, hal ini mengartikan bahwa hasil karya yang dibuat para peserta telah menerapkan tiga aspek penting seperti kreativitas, kombinasi elemen desain grafis, dan kelengkapan informasi 5W+1H. Para pelajar juga secara kreatif dapat menerapkan prinsip dasar desain grafis dan kombinasi elemen dasar desain grafis pada setiap hasil karya mereka.
Web-Based IT Helpdesk System with Naive Bayes Automatic Ticket Classification Using Laravel: Sistem Helpdesk TI Berbasis Web dengan Klasifikasi Tiket Otomatis Naive Bayes Menggunakan Laravel Gallen Cakra Adhi wibowo; Dita Madonna Simanjuntak; Henoch Juli christanto
NUANSA INFORMATIKA Vol. 20 No. 2 (2026): Nuansa Informatika 20.2 July 2026
Publisher : FKOM UNIKU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25134/ilkom.v20i2.626

Abstract

Managing IT support requests in a university environment remains largely manual, leading to untracked ticket backlogs, slow response times, and misrouted requests caused by incorrect manual categorization. This study presents the design and implementation of a web-based IT Helpdesk Ticketing System integrated with an automatic ticket category classification module using Multinomial Naive Bayes with TF-IDF feature extraction, developed for Universitas Kristen Indonesia (UKI) using the Waterfall SDLC on the Laravel 10 framework. The novelty of this work lies in the real-time integration of a Python-based Naive Bayes microservice directly into the Laravel ticket submission workflow. The classifier was trained on 450 domain-labeled IT support tickets across five categories and evaluated using 5-fold cross-validation (mean accuracy 88.7% +/- 0.9%) and a held-out test set (accuracy 88.9%, Macro-F1 87.6%), outperforming SVM (85.6%) and KNN (81.5%). Black-Box testing yielded 100% pass rate. ISO 9241-11 usability evaluation (n=25) produced effectiveness 95%, efficiency 92%, SUS 76.25 (Grade B)
Strategi Persaingan Pemasaran Indomaret dan Alfamart di Salatiga Menggunakan Game Theory Henoch Juli Christanto; Stephen Aprius Sutresno; Steven Mavish; Yerik Afrianto Singgalen; Christine Dewi
Jurnal Elektro Vol 16 No 1 (2023): Vol.16 No.1 April 2023: Jurnal Elektro
Publisher : Program Studi Teknik Elektro, Fakultas Biosains, Teknologi, dan Inovasi, Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v16i1.5126

Abstract

Indomaret and Alfamart are minimarket businesses that are currently experiencing significant growth, especially in the city of Salatiga. Each company strives to achieve maximum profit, and thus, it is essential to determine the most optimal competitive strategy to attract customers. This research was conducted using a questionnaire to understand what influences consumers in choosing a minimarket for shopping, providing valuable insights for determining minimarket strategies. Game Theory is employed to represent the respondents. The results of the study indicate that Alfamart will employ a location-based strategy in their stores, while Indomaret will utilize discount and promotion strategies for their easily accessible minimarkets.
Co-Authors Airlangga, Gregorius Christine Dewi Denny Jean Cross Sihombing Dita Madonna Simanjuntak Eugenius Kau Suni Gallen Cakra Adhi wibowo Julius Bata Pedro Manuel Lamberto Buu Sada Stephen Aprius Sutresno Stephen Aprius Sutresno Steven Mavish Yerik Afrianto Singgalen