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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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Bali
INDONESIA
Jurnal Nasional Teknologi Informasi dan Aplikasinya
Published by Universitas Udayana
ISSN : 29863929     EISSN : 30321948     DOI : -
Core Subject : Science,
Computer Science & IT
JNATIA (Jurnal Nasional Teknologi Informasi dan Aplikasinya) merupakan jurnal yang berfokus pada teori, praktik dan metodologi seluruh aspek teknologi di bidang ilmu dan teknik komputer serta ide-ide produktif dan inovatif terkait teknologi baru dan sistem informasi. Jurnal ini memuat makalah penelitian asli yang belum pernah dipublikasikan dan telah melalui jurnal double-blind review. JNATIA (Jurnal Teknologi Informasi dan Penerapannya) diterbitkan empat kali setahun (Februari, Mei, Agustus, November).
Arjuna Subject : Ilmu Komputer (semua kategori) - Aplikasi Ilmu Komputer
Articles 255 Documents
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Perhitungan Nilai Besaran Fisis Mammografi Jenis Histopatologi IDC dan ILC Frady Cakranegara, Anak Agung Ngurah; Putra, Ida Ayu Gde Suwiprabayanti
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 3 (2023): JNATIA Vol. 1, No. 3, Mei 2023
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

In this study, the main objective was to calculate the range of physical values contained in mammography X-ray images and determine the physical quantities that are significant in differentiating between the histopathological types of ILC (Invasive Lobular Carcinoma) and IDC (Invasive Ductal Carcinoma). The research method involved collecting data from 152 mammograms consisting of 7 ILCs and 145 IDCs from doctor Sutomo Surabaya's radiology database. The range of physical values such as entropy, contrast, second angular moment, differential invest moment, mean, deviation, entropy of Hdiff, angular moment of Hdiff, and mean of Hdiff are calculated and compared between ILC and IDC using the Anova statistical test. The results showed that there were differences in the range of physical quantity values between ILC and IDC. Significant parameters in differentiating the two types of histopathology are mean1, mean2, mean3, and mean4. In conclusion, IDC has a higher peak than ILC, and the range of ILC physical quantities is higher than IDC. Keywords: X-ray, IDC, ILC, Mammografi, Anova
Perancangan Aplikasi Rekomendasi Destinasi Wisata di Provinsi Bali Berbasis Web Menggunakan Metode SUS Martayasa, I Gede; Karyawati, Anak Agung Istri Ngurah Eka
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 1 (2022): JNATIA Vol. 1, No. 1, November 2022
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

User interface is one of the most important factors in building a website. A good user interface has aspects of clarity, conciseness, easy to recognize, responsiveness, consistency and has aesthetic content. Without careful preparation and design, a certain website cannot run optimally, it can even cause users to move to other websites. The purpose of this study is to analyze the quality of User Interface design in the Web-Based Tourist Destination Recommendation Application in Bali Province. User Interface design quality analysis will be carried out using the SUS method or System Usability Scale. Quality evaluation on the usability aspect was carried out using the SUS questionnaire as an assessment standard. The results of this assessment will determine whether or not the UI design is feasible on the Web-Based Tourist Destination Recommendation Application in Bali Province.
Analisis Perancangan Web Aplikasi Goffeeshop Dengan Metode Atomic Design Dan User Centered Design Bendesa, Gde Agung Mandala; Raharja, Made Agung
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 1 (2022): JNATIA Vol. 1, No. 1, November 2022
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

Design patterns in Software Engineering generally provide solutions to recurring problems that often occur in software design. The subjective difference in design style is one of the obstacles experienced by Front-End Developers in designing the user interface design of slicing software, making the process of designing user interface designs tends to take a long time. This is the background of the author to design a Design System with the Atomic Design method in designing Goffeeshop Web Applications. In this research will be carried out using the Atomic Design method in the design process and the overall process of this research will use the User Centered Design method in several stages that are adapted to the research. Based on the test results, the research can be seen that the System Design that is designed can increase the productivity of a Front-End Developer in the design so that the time used is reduced because by utilizing the concept of the Atomic Design method. In addition, the resulting system results are more uniform and consistent. Then tested with the concept of User Centered Design using a questionnaire before and after the research design in accordance with usability indicators. Testing with a questionnaire before design is carried out to find out the solution and researchers can decide to create this information system, then a questionnaire is carried out after the design is carried out to be able to measure the level of user satisfaction with the Goffeeshop Web Application that has been designed which in this study an average of 69.6% of respondents users say this system is very easy and suitable.
Identifikasi Salt and Pepper Noise pada Citra dengan Metode Median Filter Berutu, Steven Gerald Parsaoran; Ari Mogi, I Komang
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 4 (2023): JNATIA Vol. 1, No. 4, Agustus 2023
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

Noise is a common issue in image processing that can degrade the quality and clarity of images. In this research, we propose a method for identifying the levels of salt and pepper noise in images using the median filter technique. The median filter is a non-linear filtering approach that effectively reduces noise by replacing the pixel values with the median value of neighboring pixels. In our approach, we apply the median filter to the image and observe the changes in the pixel values. By analyzing the differences between the original image and the filtered image, we can determine the extent of salt and pepper noise present in the image. The proposed method offers a reliable and efficient way to quantify the level of salt and pepper noise. Experimental results on various images demonstrate the effectiveness of the proposed method in accurately identifying and quantifying salt and pepper noise levels. The method provides valuable insights into the amount of noise present in images, enabling better understanding and further processing of the image data. Keywords: Distortion, Smoothing, Enhancement, Detection, Measurement
Pemodelan Topik Pada Ulasan Hotel Menggunakan Metode BERTopic Dengan Prosedur c-TF-IDF Mertayasa, I Komang Tryana; Darmawan, I Dewa Made Bayu Atmaja
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 1 (2022): JNATIA Vol. 1, No. 1, November 2022
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

User review data on travel guidance services can be useful textual data for other users. By knowing what topics are discussed in user reviews in hotel products, travel guidance service providers can group these reviews based on the topics discussed. In grouping textual data into several topics, the use of topic modeling methods can be done. In this study, the author uses the BERTopic method in modeling topics on user review data related to hotel products on one of the TripAdvisor travel guidance services. This study uses secondary data in the form of hotel reviews on the TripAdvisor site. Topic modeling with BERTopic begins with document embedding, dimensionality reduction (UMAP), clustering (HDBSCAN), and c-TF-IDF. Topic modeling using the BERTopic method resulted in 78 topics with a topic coherence value of 0.07287 and a topic diversity of 0.496154. The lower the number of topics to be generated, the value of topic coherence and topic diversity decreases
Pengujian Fungsionalitas Sistem Pengamanan Digital Watermarking Kartu Indonesia Sehat Menggunakan Algoritma MSB Cahyani, Ni Putu Intan; Santi Astawa, I Gede
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 3 (2023): JNATIA Vol. 1, No. 3, Mei 2023
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

The rapid development of technology makes the dissemination of information also develop, and the use of digital data is increasingly used even in the health sector, one of which is when registering at health institutions online so that when registering it is necessary to scan the Healthy Indonesia Card to register. Sometimes there are onkuns who are not responsible for misusing it to do evil things, so based on these problems, the Healthy Indonesia Card (KIS) that will be used should be inserted with a watermark to minimize unwanted events. Watermark is a method of inserting information into digital data that aims to protect data ownership. One technique that can be used is the steganography technique, which uses the MSB (Most Significant Bit) algorithm. The length of time it takes to insert a watermark on a Healthy Indonesia Card (KIS) depends on how much text will be inserted to become a watermark Keywords: Watermarking, MSB Algoritma, Watermark KIS, Steganography
Pemindai QR Code untuk Barcode Berkas Perkara di Pengadilan Agama Berbasis Android Noviyanti, Putri; Muliantara, Agus; Putra, Ida Ayu Gde Suwiprabayanti
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 1 (2022): JNATIA Vol. 1, No. 1, November 2022
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

Dengan berkembangnya teknologi smartphone saat ini, informasi yang dibutuhkan menjadi sangat mudah untuk mengakses suatu berkas perkara. Pengadilan Agama sebagai pengadilan tingkat pertama ialah pengadilan yang bertindak menerima, memeriksa, dan memutus setiap permohonan atau gugatan pada tahap paling awal dan paling bawah. Pengadilan Agama bertindak sebagai peradilan sehari hari menampung pada tahap awal dan memutus atau mengadili pada tahap awal segala perkara yang diajukan masyarakat mencari keadilan. Tidak boleh mengajukan suatu permohonan atau gugatan langsung ke Pengadilan Tinggi Agama. Semua jenis perkara terlebih dahulu mesti melalui Pengadilan Agama dalam kedudukan hierarki sebagai pengadilan tingkat pertama. Terhadap semua permohonan atau gugat perkara yang diajukan kepadanya dalam kedudukan sebagai instansi pengadilan tingkat pertama, harus menerima, memeriksa, dan memutusnya, dilarang menolak untuk menerima, memeriksa, dan memutus perkara yang diajukan kepada nya dengan dalih apapun. QR Code adalah salah satu cara untuk mendapatkan informasi yang lengkap. QR Code yaitu suatu jenis image dua dimensi yang menampilkan data berupa teks. Tujuan dari penelitian ini adalah mempermudah admin mengetahui informasi berkas perkara di pengadilan agama. Metode yang digunakan dalam penelitian ini adalah metode System Development Life Cycle (SDLC). Hasil dari penelitian ini adalah aplikasi pemindai QR Code Berkas Perkara. Berdasarkan hasil pengujian sistem ini melaui black box, smartphone, dan responden dapat disimpulkan bahwa aplikasi ini sudah sesuai dan penguji pada Smartphone disimpulkan bahwa aplikasi ini juga dapat berjalan denan baik.
Implementasi IoT pada Alat Pendeteksi Kesuburan Tanah Menggunakan Algoritma Fuzzy Logic Firmansyah, Dimas; Dwidasmara, Ida Bagus Gede
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 2 No 2 (2024): JNATIA Vol. 2, No. 2, Februari 2024
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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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. Keywords: Soil Fertility Detection Tool, IoT, Fuzzy Logic Algorithm
Analisis Ulasan Produk Menggunakan Metode Naive Bayes Classifier Simamorra, Monika Hermiani Yolanda; Made Mahendra, Ida Bagus
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 2 No 1 (2023): JNATIA Vol. 2, No. 1, November 2023
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

Advancements in technology have shifted market activities towards e-commerce, resulting in a substantial increase in user-generated review data. Buyer reviews, which are comments provided after purchasing products online, serve as valuable feedback for sellers to enhance product quality and aid buyers in making informed decisions. However, manually analyzing a large volume of buyer reviews is time-consuming. To address this issue, sentiment analysis methods can be employed to automatically classify product reviews into positive and negative sentiment classes.. Sentiment analysis was conducted using Multinomial Naive Bayes in this study.. The data used were 400 pieces of data with a division of 80% as training data and 20% as test data. The preprocessing in this study are data cleaning, tokenization, normalization, stopword, and stemming. The feature extraction process is carried out by the Term-Frequency method. . Then the classification process is carried out using the Multinomial Naive Bayes method and tested using the Confusion Matrix method. The final results of this study showed that the Multinomial Naive Bayes method could carry out the product review data classification process well and obtained an accuracy value of 85%, a precision value of 77%, a recall value of 72%, and an f1-score value of 74%. Keywords: Text preprocessing, Term Frequency, Naive Bayes Classifier, Confusion Matrix
Implementasi Sistem Monitoring pada Ikan Channa dengan Menggunakan Logika Fuzzy Sinta Widya Ningrat, I Gusti Made; Mogi, I Komang Ari
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 1 No 1 (2022): JNATIA Vol. 1, No. 1, November 2022
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

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Abstract

Channa fish is a predatory ornamental fish that lives in fresh water, in Indonesia channa fish called snakehead fish. Channa fish or snakehead fish are widely distributed in across Asia, such as Indonesia, India, Thailand, Malaysia, and Vietnam. This fish is very much in demand nowadays. However, channa fish have problems in adapting with the water temperature and pH itself. Imported channa fish, especially from India, are very difficult to adapt in Indonesia because of the difference the water temperature and pH. Hence Internet of Things-based system with algorithms was required to support and classify water temperature and pH data from sensors. Fuzzy logic algorithm is a branch of mathematics which provided as problem solving modeling by computer technology. Fuzzy logic would help the channa fish to adapt in Indonesia water temperature an pH. The result of this study was to provide a website based monitoring system to identify the value of data quality from Internet of Things sensors.

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