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Object Detection and Monitor System for Building Security Based on Internet of Things (IoT) Using Illumination Invariant Face Recognition Chatisa, Ivan; Syahbana, Yoanda Alim; Wibowo, Agus Urip Ari
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 8, No. 1, February 2023
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v8i1.1622

Abstract

Theft and intrusion are crimes that often occur in neighborhoods when there is opportunity or negligence by owners and security personnel. Many studies have been carried out to improve environmental security by applying cameras as a surveillance medium. However, the camera is not optimal in detecting objects when the lighting conditions are lacking. Therefore, in this study, a monitoring and object detection system was built by applying the Illumination Invariant model. This model is used to improve the appearance of the image from light and shadow reflections. The process of detecting and identifying objects is done by using human facial features (face detection) captured by the camera. The camera used is a Logitec C270 Webcam 720p which is connected via a USB port on the Raspberry Pi 4. The Raspberry Pi 4 processes human face image data and sends the processing results to a MySQL database using the HTTP protocol. Data transmission is done using the Python Flask web framework. The system was successfully run 100% by using black box testing of all functional requirements. Tests on the object detection feature were carried out based on different lighting conditions 15 times by comparing the original image and the results of the Illumination Invariant implementation. Based on the test results obtained object detection accuracy of 86.7%.
Information Gain Feature Selection for Temporal Sentiment Analysis of Pedulilindungi Application Review using Naïve Bayes Classifier Algorithm: Information Gain Feature Selection for Temporal Sentiment Analysis of Pedulilindungi Application Review using Naïve Bayes Classifier Algorithm Helma, Siti Syahidatul; Qudsi, Dini Hidayatul; Chatisa, Ivan
Indonesian Journal of Informatic Research and Software Engineering (IJIRSE) Vol. 5 No. 2 (2025): Indonesian Journal of Informatic Research and Software Engineering (IJIRSE)
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/ijirse.v5i2.2217

Abstract

Through the Instruction of the Minister of Home Affairs of the Republic of Indonesia Number 38 of 2021 concerning the Implementation of Restrictions on Community Activities (PPKM), all communities are required to use the Pedulilindungi application from August 31, 2021, to September 6, 2021, and updated regularly. Users can download and access the Pedulilindungi application through the Google Play Store application market. There, users can directly assess an application by providing reviews that can describe user responses and satisfaction with the application. The Naïve Bayes Classifier (NBC) algorithm is applied to perform modeling in classifying temporal sentiment analysis data. Prior to classification, a feature selection process with information gain is performed. Based on the experimental results, the best evaluation was produced on temporal data dated September 03, 2021, with an accuracy of 91.9% and precision and recall values of 99.9% and 91.9%, respectively.
Penerapan Aspek UX Pada Desain Media 3D Interaktif Pembelajaran Pemrograman Berorientasi Objek Sari, Rika Perdana; Sari, Rika; Felicia, Agnes; Kreshna, Jan Alif; Chatisa, Ivan
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 13 No 4: Agustus 2026
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jtiik.134

Abstract

Pemrograman Berorientasi Objek (PBO) merupakan mata kuliah dengan tingkat kompleksitas dan abstraksi tinggi yang membuat mahasiswa kesulitan memahami, khususnya ketika materi disajikan dalam bentuk teks atau penjelasan statis. Survei internal menunjukkan bahwa lebih dari separuh mahasiswa mengalami kesulitan memahami materi PBO dan cenderung mencari alternatif bahan belajar visual, namun media yang tersedia belum optimal dari sisi struktur penyajian dan pengalaman pengguna. Penelitian ini bertujuan mengembangkan media pembelajaran interaktif berbasis 3D yang berorientasi pada aspek user experience (UX) untuk mendukung pembelajaran PBO di pendidikan vokasional. Pengembangan media dilakukan dengan mengintegrasikan pendekatan Multimedia Development Life Cycle (MDLC) dan model Analyze, Design, Develop, Implement, and Evaluate (ADDIE). Tahap concept dan analysis difokuskan pada identifikasi kebutuhan belajar, karakteristik mahasiswa, serta kesesuaian materi dengan Rencana Pembelajaran Semester (RPS). Tahap design dan development mencakup perancangan skenario pembelajaran, storyboard, dan antarmuka pengguna, serta pengembangan media menggunakan Unity 3D yang memadukan video visualisasi 3D, simulasi interaktif, dan kuis. Tahap testing meliputi pengujian fungsional (black box testing), validasi konten melalui expert judgment, serta evaluasi UX menggunakan User Experience Questionnaire–Short (UEQ-S). Hasil evaluasi menunjukkan bahwa media pembelajaran yang dikembangkan memperoleh persepsi sangat positif, dengan kualitas pragmatis dan keseluruhan UX berada pada kategori excellent. Temuan ini menegaskan potensi media pembelajaran interaktif 3D berbasis UX sebagai pendukung pembelajaran PBO di pendidikan vokasional.   Abstract Object-Oriented Programming (OOP) is a complex and abstract course, making it difficult for students to understand, especially when the material is presented in text or statistical form. An internal survey shows that more than half of students have difficulty understanding OOP material and tend to seek alternative visual learning materials, but the available media are not optimal in terms of presentation structure and user experience. This study aims to develop 3D-based interactive learning media that focus on user experience (UX) to support OOP learning in vocational education. Media development is carried out by integrating the Multimedia Development Life Cycle (MDLC) approach and the Analyze, Design, Develop, Implement, and Evaluate (ADDIE) model. The concept and analysis stages focus on identifying learning needs, student characteristics, and the suitability of the material with the Semester Learning Plan (RPS). The design and development stages include designing learning scenarios, storyboards, and user interfaces, as well as media development using Unity 3D that combines 3D visualisation videos, interactive simulations, and quizzes. The testing stages included functional testing (black box testing), content validation through expert judgment, and UX evaluation using the User Experience Questionnaire–Short (UEQ-S). The evaluation results showed that the developed learning media received very positive perceptions, with pragmatic quality and overall UX being in the very good category. These findings confirm the potential of UX-based 3D interactive learning media as a support for PBO learning in vocational education.