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All Journal Jurnal Ilmiah Teknik Informatika dan Komunikasi Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Prosiding Seminar Nasional Ilmu Teknik Journal of Golden Generation Multidisciplinary Jurnal Publikasi Ilmu Komputer dan Multimedia
Rani Chantika
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Analisis Perbandingan Filter Median dan Gaussian dalam Mengurangi Noise pada Citra Digital Puji Sri Alhirani; Lailan Sofinah Harahap; Rani Chantika
Jurnal Ilmiah Teknik Informatika dan Komunikasi Vol. 5 No. 2 (2025): Juli: Jurnal Ilmiah Teknik Informatika dan Komunikasi
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juitik.v5i2.1148

Abstract

. Digital image processing is one of the important aspects in the world of technology, especially in improving image quality from noise interference. This study aims to analyze and compare the performance of the Median Filter and Gaussian Filter in reducing salt & pepper noise in digital images. The research process was carried out using the Python programming language and the OpenCV and NumPy libraries. The initial image was randomly noised, then processed using both types of filters. The results obtained were evaluated visually and quantitatively using the PSNR (Peak Signal-to-Noise Ratio) and MSE (Mean Squared Error) metrics. Based on the experimental results, the Median Filter was able to produce cleaner images and maintain image details compared to the Gaussian Filter. These results indicate that the Median Filter has advantages in handling salt & pepper noise. This study is expected to be a reference in selecting the right filtering method to improve the quality of digital images.
APLIKASI WEB UNTUK ANALISIS SEKUENS FASTA BERBASIS PYTHON Pebi Mina Husania; Tengku Syahvina Rival Dini; Rani Chantika; Puji Sri Alhirani
Journal of Golden Generation Multidisciplinary Vol. 2 No. 1 (2026): Februari 2026 : Journal of Golden Generation Multidisciplinary
Publisher : PT. Lembaga Penerbit Penelitian Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65244/jggm.v2i1.363

Abstract

Perkembangan teknologi sekuensing telah menghasilkan data sekuens DNA, RNA, dan protein dalam jumlah besar yang umumnya disimpan dalam format FASTA. Meskipun format ini sederhana dan banyak digunakan, perangkat lunak bioinformatika yang tersedia masih didominasi oleh aplikasi berbasis desktop atau command line interface yang kurang ramah bagi pengguna pemula. Penelitian ini bertujuan untuk mengembangkan aplikasi web sederhana berbasis Python untuk analisis dasar file FASTA. Aplikasi dibangun menggunakan framework Flask dan pustaka BioPython untuk melakukan analisis panjang sekuens, komposisi basa nukleotida, serta persentase GC melalui antarmuka web yang mudah digunakan. Metode pengembangan sistem yang digunakan adalah model Waterfall, meliputi analisis kebutuhan, perancangan, implementasi, dan pengujian. Hasil pengujian menunjukkan bahwa aplikasi mampu memproses file FASTA secara akurat dan cepat tanpa memerlukan instalasi perangkat lunak tambahan di sisi pengguna. Aplikasi ini diharapkan dapat menjadi media pembelajaran bioinformatika serta mendukung analisis awal sekuens biologis bagi mahasiswa dan peneliti.
Model Machine Learning untuk Klasifikasi Loyalitas Pelanggan Menggunakan Random Forest Tengku Syahvina Rival Dini; Rani Chantika; Pebi Mina Husania; Puji Sri Alhirani
Prosiding Seminar Nasional Ilmu Teknik Vol. 2 No. 2 (2025): Desember: Prosiding Seminar Nasional Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/prosemnasproit.v2i2.202

Abstract

This research develops a machine learning model to classify customer loyalty using the Random Forest algorithm. Customer churn is a critical issue that reduces revenue and increases acquisition costs. A dataset of 50,000 customers from global e-commerce and subscription platforms was processed through data cleaning, imputation, outlier handling, and class balancing with SMOTE. The Random Forest model was built as a baseline and optimized with hyperparameter tuning. Evaluation using accuracy, precision, recall, and F1-score shows that the optimized model achieved 90.81% accuracy and 83.87% F1-score, outperforming previous Naïve Bayes approaches. Feature importance analysis highlights customer service interactions, lifetime value, and demographic factors as key predictors of churn. These findings demonstrate Random Forest’s effectiveness in churn prediction and provide practical insights for customer retention strategies
Performance Analysis of the M/M/1 Queuing System in Barber Shop Services Using an Analytical Approach Pebi Mina Husania; Rani Chantika; Puji Sri Alhirani; Uli Salsabila Hasibuan
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 6 (2025): Desember: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i6.1283

Abstract

Queueing systems play an important role in evaluating service performance, especially in small-scale businesses such as barbershops, where fluctuating customer arrival patterns and limited service capacity often lead to long waiting times. This study aims to analyze the performance of barbershop services using the M/M/1 queueing model and an analytical approach based on experimentally tested arrival (λ) and service (μ) rates. The model was selected because it represents a single-server system with Poisson arrivals and exponentially distributed service times, closely matching real barbershop operational characteristics. Using assumed realistic parameters, the analysis shows that when λ = 12 customers per hour and μ = 6 customers per hour, the system becomes unstable with a utilization rate (ρ) exceeding 1, indicating continuous queue growth. Further simulations with increased service rates demonstrate significant improvements: at μ = 15, the system achieves ρ = 0.8 with an average waiting time of 16 minutes, while at μ = 13, the system remains stable but experiences a long waiting time of approximately 55 minutes. These findings emphasize that barbershop performance is highly sensitive to service speed and that even small increases in μ can produce substantial improvements in queue stability and customer waiting times. The study concludes that barbershops must ensure adequate service capacity—either through optimizing service duration, improving worker efficiency, or adding servers—to maintain service quality and enhance customer satisfaction.
Dampak Warna dan Tipografi terhadap Kenyamanan Pengguna dalam Desain Antarmuka Digital Rani Chantika; Pebi Mina Husania; Tengku Syahvina Rival Dini; Silfia Rahmadani Sitorus; Puji Sri Alhirani; M. Khalil Gibran
Jurnal Publikasi Ilmu Komputer dan Multimedia Vol. 4 No. 2 (2025): Mei: Jurnal Publikasi Ilmu Komputer dan Multimedia
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jupikom.v4i2.4073

Abstract

Digital interface design plays a vital role in user interaction with software, especially through visual elements such as color and typography. This study was motivated by the need to understand how these visual elements affect user comfort while interacting with an application or website. The purpose of this study was to analyze user perceptions of the use of color and typography, and their impact on visual comfort. The method used was a descriptive quantitative approach by distributing online questionnaires to 20 respondents from various age groups. The collected data were analyzed descriptively by comparing preferences and comfort based on the age of the respondents. The results showed that the majority of respondents felt that color and typography greatly influenced the comfort of using digital interfaces. Dark background colors and sans-serif fonts with proportional sizes proved to be the most preferred choices because they provided reading comfort and reduced eye fatigue. A balanced combination of color and typography was also considered important to improve readability and the overall user experience. In conclusion, the selection and use of appropriate visual elements contribute greatly to creating a friendly and comfortable interface design for users of various age ranges.
Analisis dan Perancangan Prototype Sistem Antrian Online Berbasis Web untuk Layanan Bank Pebi Mina Husania; Rani Chantika; Mhd. Furqan
Jurnal Publikasi Ilmu Komputer dan Multimedia Vol. 4 No. 2 (2025): Mei: Jurnal Publikasi Ilmu Komputer dan Multimedia
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jupikom.v4i2.4074

Abstract

This study focuses on the analysis and design of a web-based online queue system prototype for banking services, aiming to improve service quality and operational efficiency. In the banking sector, managing customer waiting times is a significant challenge that impacts their comfort and satisfaction. The online queue system enables customers to obtain queue numbers online, thereby minimizing waiting times and making queue management more efficient. This research includes system requirements analysis, user interface design, and process flow development tailored to customer needs and banking operations. The resulting prototype is expected to serve as a foundation for developing a more comprehensive digital queue system, supporting digital transformation in the banking sector, and providing practical and theoretical contributions to web-based service development.
Co-Authors Lailan Sofinah Harahap M. Khalil Gibran Mhd. Furqan Pebi Mina Husania Puji Sri Alhirani Silfia Rahmadani Sitorus Tengku Syahvina Rival Dini Uli Salsabila Hasibuan