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All Journal International Journal of Electrical and Computer Engineering International Conference on Engineering and Technology Development (ICETD) MUSTEK ANIM HA JITK (Jurnal Ilmu Pengetahuan dan Komputer) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Pengabdian Masyarakat (ABDIRA) JSIKTI (Jurnal Sistem Informasi dan Komputer Terapan Indonesia) Fahma : Jurnal Informatika Komputer, Bisnis dan Manajemen Inovasi Teknologi Masyarakat
Heru Ismanto
Universitas Musamus Merauke
Aerospace Engineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Nursing Social Sciences Other

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Classification of Tuberculosis and Pneumonia Lung Diseases in X-Ray Images Using the CNN Method with VGG-19 Architecture Sri Murdhani, I Dewa Ayu; Ismanto, Heru; Suprihanto, Didit
Jurnal Sistem Informasi dan Komputer Terapan Indonesia (JSIKTI) Vol 8 No 2 (2025): December
Publisher : INFOTEKS (Information Technology, Computer and Sciences)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33173/jsikti.269

Abstract

Tuberculosis (TB) and Pneumonia continue to be among the world’s leading causes of morbidity and mortality, particularly in low- and middle-income countries where access to advanced diagnostic tools remains limited. Conventional radiological interpretation, while effective, heavily depends on the experience and precision of radiologists, resulting in potential subjectivity and diagnostic variability. This study proposes a fully automated classification framework for lung disease detection using a Convolutional Neural Network (CNN) based on the VGG-19 architecture. The model aims to enhance diagnostic accuracy and reliability by leveraging deep learning techniques capable of capturing subtle radiographic patterns that may not be readily identifiable by human observers. A dataset of 3,623 chest X-ray images—divided into Normal, Pneumonia, and Tuberculosis classes—was compiled from Kaggle and Mendeley Data repositories. Preprocessing techniques including Contrast Limited Adaptive Histogram Equalization (CLAHE), cropping, resizing, and normalization were employed to enhance contrast and minimize noise. The model was trained and tested under four data-split configurations (80:20, 70:30, 60:40, and 50:50) to assess generalization capability. The 70:30 configuration achieved optimal performance, recording 96% accuracy, 97% precision, 95% recall, and a 96% F1-score. These findings demonstrate that the VGG-19 model can accurately distinguish between TB, Pneumonia, and Normal cases, providing a reliable foundation for AI-driven medical diagnosis. Future research will focus on dataset expansion, interpretability enhancement using Explainable AI (XAI), and the integration of this model into clinical decision-support systems.
Forecasting the Jakarta Composite Index (IHSG) Using the Moving Average Method Ismanto, Heru
Jurnal Sistem Informasi dan Komputer Terapan Indonesia (JSIKTI) Vol 8 No 3 (2026): March
Publisher : INFOTEKS (Information Technology, Computer and Sciences)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33173/jsikti.283

Abstract

Financial market indices play a crucial role in reflecting economic conditions and supporting investment decision-making. In Indonesia, the Jakarta Composite Index (IHSG) serves as a key benchmark for evaluating overall stock market performance. Due to its dynamic and volatile nature, accurate forecasting of IHSG movements remains a challenging task in financial time series analysis. Many recent studies employ complex machine learning and deep learning models, which often require substantial computational resources and lack interpretability, limiting their practical adoption. Motivated by the need for transparent and easily implementable forecasting approaches, this study investigates the use of the Simple Moving Average (SMA) method as a baseline model for forecasting the IHSG. The main contribution of this research lies in providing a systematic evaluation of the moving average method using different window sizes and standard error metrics. Historical IHSG data are preprocessed, analyzed descriptively, and divided into training and testing datasets. Short-term forecasts are generated by applying the SMA model with varying window configurations. The performance of the proposed approach is evaluated using Mean Absolute Error (MAE), Mean Squared Error (MSE), Root Mean Squared Error (RMSE), and Mean Absolute Percentage Error (MAPE). The results demonstrate that the moving average method is capable of capturing the general trend of the IHSG, with forecasting accuracy strongly influenced by the choice of window size. Future work may focus on integrating additional forecasting techniques, incorporating exogenous variables, and developing hybrid or adaptive models to further enhance prediction accuracy and robustness.
Sistem Informasi Geografis Pemetaan Kerajinan Kulit Buaya Di Kota Merauke Heru; Ismanto, Heru; Prayitno, Agus; Munir, Agus Qomaruddin; Jayanti, Rafika; Septarini, Dina Fitri; Pasalli, Daud Andang
Jurnal Informatika Komputer, Bisnis dan Manajemen Vol 22 No 2 (2024): Mei 2024
Publisher : LPPM STMIK El Rahma Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61805/fahma.v22i2.122

Abstract

Kerajinan kulit adalah barang-barang yang berbahan dasar dari kulit hewan salah satunya buaya. Kulit buaya menjadi salah satu industri rumah unggulan bagi masyarakat Merauke, hal ini disebabkan karena populasi buaya begitu besar di Merauke. Kerajinan kulit pun bermacam-macam, ada yang dibuat menjadi tas, sepatu, sabuk, dompet dan masih banyak lagi lainnya. Penelitian ini bertujuan membangun sebuah sistem yang dapat membantu masyarakat dalam mencari lokasi kerajinan kulit buaya,  hasil dari  Sistem tersebut dapat memberikan informasi, foto produk serta letak peta.Sistem informasi geografis kerajinan kulit buaya dirancang dengan menggunakan bahasa pemrograman PHP dan perancangan basis data menggunakan   MYSQL, teknik pengumpulan data penelitian yaitu wawancara, observasi dan studi    pustaka. Pengujian sistem dengan menggunakan User acceptence test (UAT) dan metode pengujian Blackbox.Hasil dari sistem yang dibuat sesuai dengan yang diharapkan, dan juga menggunakan pengujian User acceptence test (UAT), menunjukkan nilai rata-rata presentase 91% yang artinya  bahwa sistem yang dibuat bisa digunakan.
Co-Authors Agus Prayitno Agus Qomaruddin Munir Amelia, Dara Andri Syafrianto Anindita Septiarini, Anindita Azhari Azhari Budi Rahmani Budi Rahmani Daud Andang Pasalli, Daud Andang Didit Suprihanto, Didit Dina Fitri Septarini, Dina Fitri Diningrum, Maynella Dwi Gultom, Josua Sonniwinter Gunawan, Muhammad Riswandi Hadiwijaya, Noor Alam Hamdani Hamdani Hamdani Hamdani Haqiqi, Aprilika Herry Ramadhani HERU Hugo Aprilianto Jamil, Muh. Jayanti, Rafika Juliyanti Lincolin Arsyad Merly, Sendy Lely Pratiwi, Putri Rinda Purwanti, Silviana Ramadhan, Fakhri Ramadhan, Muhammad Ady Setiyawan Rasidia, Fikri Senina, Alya Aulya Nurullita Silas Tanggu Redu Sri Murdhani, I Dewa Ayu Suharto Suharto Tuhumena, Jeremias Untari Untari