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I Gede Surya Rahayuda
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Sekretariat JNATIA Gedung FMIPA Lantai 1, Program Studi Informatika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana
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INDONESIA
Jurnal Nasional Teknologi Informasi dan Aplikasinya
Published by Universitas Udayana
ISSN : 29863929     EISSN : 30321948     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Engineering
JNATIA (Jurnal Nasional Teknologi Informasi dan Aplikasinya) adalah jurnal yang berfokus pada teori, praktik, dan metodologi semua aspek teknologi di bidang ilmu komputer, informatika dan teknik, serta ide-ide produktif dan inovatif terkait teknologi baru dan teknologi informasi. Jurnal ini memuat makalah penelitian asli yang belum pernah diterbitkan. JNATIA (Jurnal Teknologi Informasi dan Aplikasinya) diterbitkan empat kali setahun (Februari, Mei, Agustus, November).
Arjuna Subject : Ilmu Komputer (semua kategori) - Aplikasi Ilmu Komputer
Articles 316 Documents
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Desain Aplikasi LANTAS Aplikasi Pelaporan Kecelakaan Lalulintas Berbasis Mobile I Gede Rizki Heriana Prayoga; Ida Bagus Gede Dwidasmara
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p17

Abstract

Accidents in Indonesia are increasing every day. Based on data from the Central Statistics Agency, the range from 2019 to 2021 shows that there were 320,084 accidents in which 74,466 people died, 33,779 people suffered serious injuries, 368,773 people suffered minor injuries, and resulted in material losses of Rp. 699,888,000,000.00 due to traffic accidents on the highway. This study aims to help reduce the death toll and also traffic accident reporting by utilizing the daily use of cellphones and smart gadgets. To overcome this problem, the authors created a design solution using the prototyping method which was implemented in a mobile application. In the prototype, the user can make an emergency call to call an ambulance so that the victim can quickly get help, and also the user can easily report a traffic accident. Hopefully the design of this application can reduce victims due to traffic accident incidents. 
Klasifikasi Ulasan Aplikasi TikTok Menggunakan Algoritma K-Nearest Neighbor dan Chi Square Sandrina Ferani Aisyah Putri; I Wayan Supriana
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p16

Abstract

TikTok application has achieved extraordinary popularity among users around the world, which has been downloaded by more than 500 million users with 16 million reviews and received a rating of 4.4 out of 5 on the Google Play Store. In this study, we will analyze user sentiment towards the TikTok application reviews. These reviews can be a benchmark for users to find out information about user experience and become a race for application developers to improve performance or quality. For that we need a method to describe the reviewer efficiently so that it is easier to understand the reviewer. In this study, the authors used a comparison of the KNN algorithm with the effect of feature selection to carry out the classification. Classification of application reviews into two classes, positive reviews, and negative reviews. In this classification, it is found that using Chi Square feature selection can produce the highest accuracy, with k = 9 value of 86.22% whereas without Chi Square feature selection it only produces the highest accuracy with k = 11 value of 77.04%. 
Image Restoration Menggunakan Metode Lucy Richardson pada Citra Digital Sammaditthi Gotama; I Wayan Santiyasa
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p15

Abstract

This journal discusses the use of the Lucy-Richardson method for image restoration on digital images. Digital images are often affected by noise or blur, which can cause the image to be too contrasted, out of focus, less sharp, and so on. Therefore, digital image processing technology is very important to improve image quality. Image restoration is one of the digital image processing techniques used to improve images that are affected by noise or blur. The Lucy-Richardson method is one of the methods that can be used to perform image restoration on digital images. In this journal, we will discuss the basic theory of the Lucy-Richardson method, the implementation of the Lucy-Richardson method on digital images, and the evaluation of the results of using the Lucy-Richardson method on digital images. The purpose of this journal is to provide a better understanding of the use of the Lucy-Richardson method for image restoration on digital images. 
Perancangan Model Ontologi untuk Sistem Pencarian Sepeda Motor Bekas I Kadek Dwi Adnyana; I Putu Gede Hendra Suputra
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p14

Abstract

Motorcycles are a means of transportation that people often use to meet their daily needs. However, not everyone can afford to buy a new motorbike, so many people are switching to used motorbikes. Finding a used motorcycle that suits your needs can be a difficult challenge for some people and of course there are many factors that must be considered. The solution that can be done for this problem is to use the semantic ontology model with the Methodology method. The design of the ontology model of used motorcycle products uses the protégé application, the ontology model is developed into a structure in protégé with a hierarchical structure of classes, slots, properties, etc. Used motorcycle product ontology development model produces 13 classes, 5 object properties, 5 data properties, and 68 individuals or instances in each class. The ontology evaluation process by performing SPARQL queries is used to get the appropriate results. 
Rancang Bangun Sistem Monitoring Asap Berbahaya dan Pengunaan HEPA Filter Guna Efisiensi Daya Terhadap Sistem Pembuangan Kevin Moses Waleleng; I Putu Gede Hendra Saputra
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p13

Abstract

Wireless Sensor Networks are a combination of Monitoring, Controlling and Data Receiving Systems. Wireless sensor networks are used in various fields, environmental activity monitoring, home monitoring, agricultural monitoring, and many other things. In terms of monitoring an environment, the levels of conditions that can cause dangerous things include smoke, fire and toxic gases. Because of this, an early detection system is very necessary. This system can be combined to be able to provide early notification signals and then take preventive steps to anticipate things that have the potential to result in risks or fatal events. In this design, the devices used will be an Arduino Uno microcontroller module, MQ-2 sensor, LED, buzzer, fan and relay. The method used is an experimental research method that can correctly test hypotheses regarding casual relationships through a design science research method (DSRM) stage pattern. Then testing is carried out by placing the system in a predetermined environment and then the data collection process is carried out periodically for certain conditions. 
Implementasi IoT pada Alat Pendeteksi Kesuburan Tanah Menggunakan Algoritma Fuzzy Logic Dimas Firmansyah; Ida Bagus Gede Dwidasmara
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p12

Abstract

So far, farmers have been able to determine soil fertility using manual methods. Farmers only look at the soil directly without measuring the level of moisture and nutrients contained in their plots of land. Due to farmers' lack of knowledge in determining the level of soil fertility on their land plots, they need a tool to help their performance. Later, this soil fertility tool will determine the level of humidity, temperature, and pH in the soil. With this tool, it is hoped that farmers will be able to optimize their harvests. 
Penerapan Ontologi dalam Representasi Pengetahuan Gangguan Kesehatan Mental Hana Christine Octavia; I Made Widiartha
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p11

Abstract

Information about mental health disorders is widely available, but there is still a need for a system that can accommodate existing knowledge and assist experts in explaining this knowledge. Building an ontology using the methontology methodology involves 10 stages that must be followed to construct the ontology. The outcome of this research is expected to provide a clear and systematic representation of knowledge about mental health disorders based on the constructed ontology. This representation will aid in understanding, early diagnosis, and management of mental health disorders. The Protégé software is used for constructing this knowledge domain. 
Klasifikasi Musik Berdasarkan Genre Menggunakan Metode K-Nearest Neighbor William Soeparman; I Ketut Gede Suhartana
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p10

Abstract

Currently the amount of music in digital form continues to increase rapidly. This causes manual genre labeling of music to be inefficient. Genre labeling can be done automatically using artificial intelligence algorithms. The artificial intelligence algorithm used is an algorithm that can classify music based on genre by using the features contained in the music. This study discusses the classification of music based on genre using the K-Nearest Neighbor method or algorithm and 6 musical features, namely beat, energy, danceability, loudness, liveness, and valence. The accuracy value in this study is 54.3%. 
Pembangunan Model Ontologi pada Sistem Informasi Manajemen Program Kreativitas Mahasiswa (PKM) I Dewa Ayu Diani; I Ketut Gede Suhartana
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p09

Abstract

The Student Creativity Program (PKM) is an initiative used to encourage and develop student creativity and innovation in the academic field. However, in PKM management, there are often challenges in integrating and utilizing the data generated effectively and efficiently. This study aims to develop an ontology model for the Student Creativity Program Management Information System (PKM), with a focus on managing and utilizing PKM data. The PKM ontology models aspects related to PKM, including the type of program, assessment criteria, participant information, and the resulting results. The development method involves need analysis, ontology design, implementation, and evaluation. The ontology model is integrated in the PKM information system, enabling users to access, manage and analyze PKM data efficiently. With the PKM ontology, PKM information can be better integrated, and data processing becomes more structured. This research contributes to the development of an ontology based PKM information system, with the potential to increase student creativity and innovation. 
Perancangan Sistem Penyisipan Pesan pada Gambar dengan Metode Least Significant Bit (LSB) Berbasis Website I Wayan Dimas Wirahadi Saputra; I Gede Santi Astawa
Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JNATIA.2024.v02.i02.p08

Abstract

The advancement of digital communication and the need for secure information exchange have led to the development of various techniques for data hiding and steganography. One of the widely used methods is the Least Significant Bit (LSB) technique, which allows the embedding of secret messages within digital images without perceptible visual changes. In this paper, we present the design and implementation of a message embedding system based on LSB method, integrated into a web-based platform. The proposed system provides a user-friendly interface for selecting an image and entering a secret message to be embedded. Utilizing HTML5 canvas and JavaScript, the system processes the selected image, extracts the LSB of each pixel, and replaces it with the corresponding bits of the secret message. The resulting image with the hidden message is then displayed to the user. Furthermore, the system offers the capability to extract the hidden message from an image previously processed by the system. The web-based nature of the system allows for easy accessibility and usage across different devices without the need for additional software installations. It provides a practical and interactive environment for users to experiment with message embedding techniques, thereby fostering understanding and awareness of data security issues. The experimental results demonstrate the effectiveness and efficiency of the system in embedding and extracting messages from various images while maintaining satisfactory visual quality. The system's user-friendly interface, combined with its robust functionality, makes it a valuable tool for users interested in secure communication and digital steganography. 

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