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All Journal Jurnal Teknologi dan Manajemen Informatika Jurnal Teknologi Informasi dan Ilmu Komputer International Journal of Advances in Intelligent Informatics Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) ILKOM Jurnal Ilmiah EDUMATIC: Jurnal Pendidikan Informatika Journal of Intelligent Decision Support System (IDSS) Indonesian Journal of Data and Science Idealis : Indonesia Journal Information System Jurnal Teknik Informatika (JUTIF) Journal of Applied Data Sciences Buletin Sistem Informasi dan Teknologi Islam Jurnal Informatika: Jurnal Pengembangan IT International Journal of Artificial Intelligence in Medical Issues The Indonesian Journal of Computer Science Linier: Literatur Informatika dan Komputer
Darwis, Herdianti
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Engineering Health Professions Mathematics Medicine & Pharmacology Public Health

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K-Means and K-Medoid in Clustering Analysis of Network Congestion Level Darwis, Herdianti; Purnawansyah, Purnawansyah; Umalekhoa, Alfi Syahrin; Adnan, Adam; Salim, Yulita; Umar, Fitriyani; Raja, Roesman Ridwan; Fajar AR, Muh. Aqil
ILKOM Jurnal Ilmiah Vol 17, No 3 (2025)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v17i3.2083.323-335

Abstract

This research investigates the application of clustering techniques to network congestion data at Universitas Muslim Indonesia, employing a hybrid metric approach based on packet loss and delay. The study utilized two algorithms, K-Means and K-Medoid, applied in a semi-supervised scenario to group 255,147 network data points into 3, 4, and 5 clusters, considering 10 principal variables. During the pre-processing phase, data cleansing was conducted to address missing values, followed by normalization to standardize the scale of numerical variables, thereby preparing the data for the clustering process. Model validation was performed using four cluster evaluation methods: Gap Statistic, Davies-Bouldin Index, and Elbow Method. The evaluation results indicate that both algorithms were capable of forming valid and reliable clusters. However, the K-Means algorithm demonstrated superior performance compared to K-Medoid, particularly when utilizing three Quality of Service variables: throughput, packet loss, and delay. In this configuration, K-Means yielded more stable clusters, a clearer separation between clusters, and a more structured visualization. Consequently, K-Means is considered more optimal for classifying network congestion levels and presents an effective approach for network data segmentation
WATERMARKING CITRA DIGITAL BERWARNA MENGGUNAKAN STATIONARY WAVELET TRANSFORM (SWT) Umar, Fitriani; Darwis, Herdianti
ILKOM Jurnal Ilmiah Vol 11, No 1 (2019)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v11i1.409.1-10

Abstract

Digital Image watermarking is widely used and studied for ownership identification, data protection, and authentication. A good watermarking scheme should achieve the watermarking requirements such as imperceptibility, robustness and capacity. This research aims to make robust and imperceptible watermarking by using Stationary Wavelet Transform. The test is done on two levels of transformation and attacked by Salt and Pepper, Speckle, Gaussian Noise, Blur, Compression and Rotation. The results show that method used in this research gives good impercebtility with PSNR value larger than 70 dB on level 1 and larger than 40 dB on level 1. The Robustness test also shows a good result where Normalized Correction value larger 0.9466 on level 1 and larger than 0.9714 on level 2. This also shows that for imperceptibilty, level 1 of  transformation gives higher results than in level 2 of transformation, while for robustness, level 2 achieves better value than level 1.  
A Hybrid Movie Recommendation System to Address Data Sparsity Using Genre-Based K-Means and Neural Collaborative Filtering Darwis, Herdianti; Syahrir, Firdaus Abrazawaiz; Hayati, Lilis Nur
ILKOM Jurnal Ilmiah Vol 17, No 2 (2025)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v17i2.2868.203-212

Abstract

Recommendation systems play a crucial role in helping users navigate the overwhelming volume of information on digital platforms. However, conventional Collaborative Filtering (CF) methods often suffer from data sparsity, leading to reduced prediction accuracy and limited recommendation diversity. To address this challenge, this study proposes a hybrid recommendation model that integrates K-Means clustering based on genre, release year, and rating statistics into the Neural Collaborative Filtering (NCF) framework. Unlike previous works that rely on a single dimension like genre or demographics for clustering, our model uniquely combines multiple content-based features. Furthermore, we explicitly integrate the cluster labels as additional embedding features within the NCF framework, enabling more nuanced and context-aware representation learning. Using the MovieLens Latest-Small dataset, our hybrid model significantly outperforms the baseline NCF across all metrics, achieving a Mean Absolute Error (MAE) of 0.6097, a Root Mean Square Error (RMSE) of 0.7946, and improvements in Precision@10 (0.6065) and Recall@10 (0.7063). These findings highlight the effectiveness of our novel, content-aware clustering approach in deep learning recommenders, resulting in more accurate, diverse, and contextually relevant movie suggestions.
Analisis Sentimen Mental Health Mahasiswa Terhadap Kehidupan Laboratorium di Universitas Muslim Indonesia dengan Pendekatan Naïve Bayes Classifier dan K-Nearest Neighbor Rahayu, Fitri; Harlinda, Harlinda; Darwis, Herdianti
LINIER: Literatur Informatika dan Komputer Vol 3, No 1 (2026)
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/linier.v3i1.3487

Abstract

Mental health adalah kesejahteraan emosional, psikologis, dan sosial seseorang yang berkaitan dengan cara seseorang berpikir, merasa, dan berperilaku, serta kemampuannya mengatasi stres, menjaga hubungan yang sehat, dan menghadapi tantangan secara positif. Aktifitas di laboratorium sering kali memerlukan waktu dan energi yang cukup banyak, yang dapat meningkatkan tekanan pada mahasiswa dan bisa berdampak pada kesehatan mental mereka. Penelitian ini bertujuan menganalisis sentimen mahasiswa terhadap mental health dalam kehidupan laboratorium dengan menggunakan pendekatan Naïve Bayes Classifier dan K-Nearest Neighbor. Penelitian ini menggunakan beberapa teknik pelabelan, yaitu pelabelan manual dan pelabelan menggunkan NLTK, serta pelatihan dengan 5-fold cross-validation dan penggunaan unigram tokenizing. Hasil penelitian menunjukkan bahwa pelabelan manual dengan pendekatan Naïve Bayes Classifier sedikit lebih unggul dengan tingkat akurasi sebesar 95.58%, presisi sebesar 95.60%, dan recall sebesar 95.54% dibandingkan dengan pendekan K-Nearest Neighbor yang menghasilkan tingkat akurasi 91.66%, presisi 91.83% dan recall 91.49%. Sementara itu, pelabelan menggunakan NLTK dengan pendekatan Naïve Bayes Classifier menghasilkan akurasi tertinggi sebesar 94.11%, presisi 94.05%, dan recall 94.22% dibandingkan dengan pendekatan K-Nearest Neighbor yang memiliki akurasi 90.68%, presisi 90.88%, dan recall 91.01%. Dari hasil pengujian, dapat disimpulkan bahwa pendekatan Naïve Bayes Classifier memberikan hasil yang lebih baik dengan mengklasifikasikan sentimen mahasiswa terkait mental health di kehidupan laboratoriom, dengan pelabelan manual memberikan performa terbaik
Co-Authors Adela Regita Azzahra Adnan, Adam Aji Prasetya Wibawa Alfitriana Riska Amaliah, Tazkirah Amelia, Ayu Annisa Febrianti Arfah, Jumrayanti Asfar, A. Muh. Fitrah Astuti, Wistiani Atmajaya, Dedy Atussaliha, Nur Almar' Azwan Triyadi Backar, Sunarti Passura Basri, Haerunnisa Basri, Nur Anisa Dian Fajar AR, Muh. Aqil Fitrah Yusti Randana Fitri Rahayu Harlinda, Harlinda Hasanuddin, Tasrif Hasihi, Cholisah Erman Haviluddin Haviluddin Irawati Irawati jabir, sitti rahmah Lilis Nur Hayati lilis nurhayati Lokapitasari Belluano, Poetri Lestari Magfirah, Magfirah Mardiyyah Hasnawi Ming Foey Teng, Ming Foey Moleo, Alif Safa Munaf, Adryan Dwiprawira Nafalski, Andrew Nia Kurniati Nur wahidah Purnawansyah Purnawansyah Purnawansyah Puspitasari, Rahma Rahmasari, Putri Aulia Raja, Roesman Ridwan Salim, Yulita Samir, Mutmainnah Sastra, Ramdan Siska Anraeni Syahrir, Firdaus Abrazawaiz Triyanna Widiyaningtyas Triyanna Widyaningtyas, Triyanna Umalekhoa, Alfi Syahrin Umar, Fitriyani Veithzal Rivai Zainal Wanaspati, Nugraha Wati, Silmi Nur Zaskia Widyawati, Dewi Zahirah, Dinna