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INDONESIA
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education, Engineering,
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering
Jurnal Pengembangan Teknlogi Informasi dan Ilmu Komputer (J-PTIIK) Universitas Brawijaya merupakan jurnal keilmuan dibidang komputer yang memuat tulisan ilmiah hasil dari penelitian mahasiswa-mahasiswa Fakultas Ilmu Komputer Universitas Brawijaya. Jurnal ini diharapkan dapat mengembangkan penelitian dan memberikan kontribusi yang berarti untuk meningkatkan sumber daya penelitian dalam Teknologi Informasi dan Ilmu Komputer.
Arjuna Subject : -
Articles 6,923 Documents
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Analisis Sentimen Ulasan Aplikasi Dana dengan Metode Random Forest Fanka Angelina Larasati; Dian Eka Ratnawati; Buce Trias Hanggara
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 9 (2022): September 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

Digital Wallet is an electronic application that can be used to make financial transactions online, without physical money and without cards, users only use smartphones in conducting financial transactions. A popular digital wallet application during this pandemic is Dana. The Dana app has many users, so there are often positive, negative and neutral reviews that are irrelevant to the rating given on the Google Play Store. The Dana application review data will be obtained using the Web Scraping technique using the Google-Play-Scraper API. The data from the scraping will then be done by text preprocessing to clean the text so that the data can be executed. Sentiment analysis can detect whether a text contains positive, negative or neutral opinions from user reviews that do not match the rating. Random Forest is a method in analysis that consists of several decision trees as a classifier. In this study, the random forest method was used by dividing three classes of sentiment, namely positive, negative and neutral. Also taking evaluation indicators, namely accuracy, recall, precision and f-measure. The test is carried out based on the number of trees and the depth of the tree to 1354 data by dividing the data by 250 data per class. Based on the results of tests and analyzes that have been carried out, with a comparison of training data and test data of 80%: 20%, namely precision 84%, recall 84%, F1-Score 84% and accuracy of 84% with a tree depth of 65 and a tree number of 400.
Analisis Perbandingan Filter Finite Impulse Response, Infinite Impulse Response, dan Discrete Wavelet Transform pada Kondisi Kelelahan Mental berbasis Sinyal Electroenchephalography Dwinanda Romolo; Edita Rosana Widasari; Barlian Henryranu Prasetio
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 9 (2022): September 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

The brain is one of the vital organs owned by living things. The brain will work optimally if it gets enough oxygen from the blood. If not, the work of the brain will decrease and will affect human performance in daily activities. One of the reasons for the decreased supply of oxygen to the brain is fatigue. According to the International Labor Organization in 2013, as many as two million workers experienced work accidents due to fatigue caused by mental factors. One way to find out whether humans experience mental fatigue or not is by recording brain wave signal activity or Electroenchephalography (EEG) and analyzing it. To analyze the EEG signal must use digital filters which are very numerous. This study will analyze the EEG signal using three filters, namely Finite Impulse Response (FIR), Infinite Impulse Response (IIR), and Discrate Wavelet Transform (DWT). Then the filtering results from these three filters will be compared to find which filter has the highest efficiency level by looking at the Signal to Noise Ratio (SNR) value and the resulting computational time. The result is that the FIR filter is the most efficient than the other filters, resulting in an average SNR value of 27.89975 dB. While the average value of the resulting computation time is 0.131 s
Prediksi Potensi Pengidap Penyakit Diabetes berdasarkan Faktor Risiko Menggunakan Algoritme Kernel K-Nearest Neighbor Renata Rizki Rafi` Athallah; Imam Cholissodin; Putra Pandu Adikara
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 8 (2022): Agustus 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

Diabetes is a chronic disease characterized by high blood sugar. As of 2011, there were 7.29 million people suffering from diabetes, and in 2021, there were 19.47 million people who have diabetes. The percentage increase in people with diabetes from 2011-2021 has a percentage increase of 267%. Very rapid growth and one of the causes of death worldwide is a problem that needs to be solved. Reduce the number of people with diabetes, there are various ways, but they are not optimal. So it is necessary to research to develop a system that can detect diabetes early so that treatment or prevention can run well. One of the techniques that can be used to detect diabetes early is prediction. The K-Nearest Neighbor (K-NN) algorithm is an algorithm designed to classify data based on previously classified learning data however this algorithm has a weakness in processing data that has high dimensions and is non-linearly separable, so adding a kernel function is a good choice for input data clustering. From the results of this study, the value of k and the kernel function with the highest accuracy value is k = 50. The kernel function Linear and Polynomial degree 1 and the performance of the Kernel K-Nearest Neighbor algorithm are better than the K-Nearest Neighbor algorithm with a difference in the accuration value of 0.14.
Implementasi Fault Tolerant System menggunakan Self-purging Redundancy pada Sistem Monitoring Suhu Ruang Server Alfan Rafi'uddin Ardhani; Agung Setia Budi; Fitri Utaminingrum
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 10 (2022): Oktober 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

Server is a computer system that serves and controls access to clients that connected to it. Server is generally placed in a special room equipped with air conditioning. This is done to keep the temperature of server's components that generate heat when working. Server that work at high temperatures may cause a decrease in performance and if left unchecked can cause server outages and damages to its components. In several studies that have been done, the application of fault tolerant system is rarely used where the system only relies on a single sensor to obtain temperature data so it is susceptible to fault. Therefore, in this study, the self-purging redundancy method is used to determine the effect of the method on system's fault handling. In this research, 3 redundant modules are used in the form of Arduino Nano and temperature sensor DHT-22 to obtain temperature data which is then sent to a voter in the form of Arduino Uno. From this study, it is found that self-purging redundancy method has an effect on system's fault handling, where the system can tolerate error that occur in one redundant module at one time. In addition, the system has an accuracy of 85% and an average computation time of 14,8 milliseconds.
Analisis Kualitas Sistem Informasi Daily Testing Activity Tracker PT. Telekomunikasi Selular menggunakan Metode Webqual 4.0 dan Importance and Performance Analysis (IPA) Haris Hasan Mangundap; Satrio Hadi Wijoyo; Intan Sartika Eris Maghfiroh
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 8 (2022): Agustus 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

Telekomunikasi Selular, also known as Telkomsel, is one of the companies working in the field of government-owned telecommunications technology. To ensure its product quality, Telkomsel has an IT Quality Assurance division to make sure a product meets the specified requirements. This division has the Test Execution team to test new products or services to meet the requirements set by Telkomsel before the products are released to the public. Telkomsel's test execution teams and vendors use an information system called LYTTA (Daily Testing Activity Tracker) to record the activity of all teams and vendors. In LYTTA, there has never been a quality measurement and there are some problems regarding the system's interface and features. This research measures the system's quality using Webqual 4.0 and IPA methods. The Webqual 4.0 method has three dimensions, namely usability, information quality, and service quality, to see the user's perspective in using and interacting with the system. The IPA method is used to map the problems that exist in the system, so the problems that need to be addressed first can be classified. This research was done by distributing questionnaires to 54 LYTTA users from three different companies, namely Telkomsel, Wipro, and Telkom Sigma. This research shows two attributes in the top priority category, namely the system's domain and easefulness. For the low priority, there are two attributes, namely the system's unattractive interface and the lack of competency. The other attributes that are not on the priority list mean it already performs well. The recommendations for improvement are made in accordance with existing guidelines.
Studi Pengaruh Jumlah Cluster pada Wireless Sensor Network (WSN) menggunakan Protokol Low Energy Adaptive Clustering Hierarchy (LEACH) Risqi Nuril Aimah; Primantara Hari Trisnawan; Reza Andria Siregar
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 10 (2022): Oktober 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

One of the problems in Wireless Sensor Network (WSN) is the use of energy.WSN is a network that connects devices, such as sensor node, router and sink node. This problem occurs because the power supply used for each node only uses battery in every process such as sending and receiving data, so the energy reserves are very limited. Therefore, the use of energy in the WSN sensor node becomes efficient by using the Low Energy Adaptive Clustering Hierarchy (LEACH) protocol. The performance of the LEACH routing protocol is influenced by several factors such as the number of node and the number of cluster. This study focuses on determining the performance of the LEACH routing protocol to determine the effect of variations in the number of cluster with the test parameters of Average Energy, Packet Delivery Ratio (PDR), Average Delay and Average Throughput on WSN. Based on the test results of Average Energy, Packet Delivery Ratio (PDR), Average Delay and Average Throughput obtained, the number of cluster 1 has the smallest Average Energy. The Packet Delivery Ratio test was found for the number of cluster 4 to get the highest result. Throughput testing for the number of cluster 4 get the highest Average Troughput results.
Pengembangan Media Pembelajaran Interaktif menggunakan Model Pengembangan APPED pada Mata Pelajaran Dasar Desain Grafis untuk Siswa Kelas X Multimedia di SMK Negeri 1 Pasuruan Eko Cahyo Wahyudi; Satrio Hadi Wijoyo; Tri Afirianto
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 9 (2022): September 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

During the Covid-19 pandemic, the teaching and learning process was carried out online at SMK Negeri 1 Pasuruan using technology and communication media. The learning media used by teachers to support Basic Graphic Design (DDG) subjects is limited to videos taken from Youtube. The application of learning media that has not been optimal has resulted in student learning outcomes not being able to reach the KKM, so to solve this problem the researcher suggests a solution in the form of developing interactive learning media (MPI) by applying the APPED development model. This model consists of 5 systematic steps, namely initial analysis and research, design, production, evaluation, and dissemination. To develop the MPI, the design is carried out according to the results of the needs analysis. The results of the MPI design include outlines of DDG Basic Competencies 3.2 and 4.2, flowcharts, screen designs, and storyboards. The MPI product developed was validated by 2 media experts, 2 material experts, and 5 students. The results of the MPI validation trial by media experts scored 96% "very feasible", material experts 81% "very feasible", and student trials 84% ​​"very feasible". Then the results of the pretest and posttest of 33 students of class X Multimedia 1 resulted in a gain of 61% "quite effective". Thus, it can be concluded that the MPI developed is very feasible and effective enough to be used in DDG learning.
Pengaruh Atensi Pendidik dalam Penguasaan TI dari IPTEK Pendidik dan Lingkungan Sekolah terhadap Kompetensi Profesional selama Pandemi di SMKN 11 Malang Dimas Ferry Kurniawan; Satrio Hadi Wijoyo; Aditya Rachmadi
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 8 (2022): Agustus 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

The Covid-19 pandemic has had an impact on education in Indonesia. Educators in fulfilling obligations during the pandemic must provide knowledge to students online. Technological developments are increasingly advanced, especially in the field of education. During the pandemic, educators can provide online learning, for professional skills regarding information technology are needed. In improving professional competence, educators must attend workshops or seminars. This study aims to determine the attention of educators in mastering IT during the Covid-19 pandemic. Combination research is a mixture of both quantitative and qualitative methods. The research subjects used were all educators at SMKN 11 Malang with a total population and sample of 86 respondents using questionnaires and interviews as data collection tools. The results of the t-test for the science and technology variable affect professional competence, the school environment variable affects the professional competence of educators. Then for the F test, the variables of science and technology and the school environment have a simultaneous effect on professional competence. The value of R square for the science and technology variable of educators has an effect of 25.1% on professional competence, then for the school environment variable, it has an effect of 41.1% on professional competence. As for the two variables, namely the science and technology variable and the school environment, the effect is 45.2% simultaneously. Then the rest is influenced by other factors. The results of the questionnaire were also supported by interviews with 8 educators who said that IT mastery can be seen from the variables of science and technology and the school environment affecting professional competence. Therefore, the results of the interviews were strengthened from the results of the questionnaire and expanded by providing other factors that impacted the mastery of IT educators at SMKN 11 Malang.
Pengembangan Sistem Informasi Pengelola Inventaris Sekolah berbasis Web menggunakan Laravel (Studi Kasus : SMA Negeri 1 Sungai Ambawang) Fauzidan Iqbal Ghiffari; Dian Eka Ratnawati; Widhy Hayuhardhika Nugraha Putra
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 13 (2022): Publikasi Khusus Tahun 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

Dipublikasikan di JUST-SI
Analisis Karakteristik Transmisi LoRa pada Wilayah Perkotaan Muhammad Muhajir Kurniawan; Kasyful Amron; Reza Andria Siregar
Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Vol 6 No 8 (2022): Agustus 2022
Publisher : Fakultas Ilmu Komputer (FILKOM), Universitas Brawijaya

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Abstract

LoRa is one of the access technologies in Wireless Sensor Networks that has the advantage of a high range of distances. LoRa data transmission is influenced by Spreading Factor, Bandwidth, Transmission Power and Coding Rate. There are studies that observe the characteristics of LoRa by using wite gaussian noise generators as an interference. However, the study was conducted at a distance of 10 meters, so further research needs to be carried out on the capabilities of the LoRa network in real environments. This study focuses on observing the transmission characteristics of LoRa in urban areas. The system consists of 1 sensor node device and 1 gateway device. The implementation and testing process was carried out in the campus area of Universitas Brawijaya, Malang City. The gateway is placed at a height of 45 meters above ground level in a multi-storey building. Node sensors are placed at multiple locations in the campus environment. The test was carried out by observing the Success Ratio, Roundtrip Delay and RSSI. From the results of the analysis carried out, a larger Spreading Factor value and a smaller Bandwidth are suitable for transmission of distances of more than 250 meters with a high Success Ratio value. While the smaller Spreading Factor value and larger Bandwidth are suitable for use in transmission distances of less than 250 meters. A larger Tranmission Power results in better RSSI sensitivity than smaller Transmission Power. The farthest transmission distance that can be reached is 700 meters with a Success Ratio percentage of 73% with a Spreading Factor of 11. Based on the tests that have been carried out, LoRa can be implemented in urban environments with several conditions such as the use of higher Spreading Factor, lower Bandwidth and medium Transmission Power.

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