Jurnal Ilmiah Informatika https://journal.ibrahimy.ac.id/index.php/JIMI <p align="justify"><strong>Jurnal Ilmiah Informatika</strong> is published by Department of Science and Technology Ibrahimy University. <strong>Jurnal Ilmiah Informatika</strong> is published twice a year, in <strong>June</strong>&nbsp;and <strong>December,</strong> Scientific Journal of Informatics covers research in the fields of Information Technology, Information Systems, Smart Business Systems, and others. The editor invites research lecturers, reviewers, practitioners, industry and observers to contribute to this journal. The language used is Indonesian.</p> <p><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">ISSN </span></span></span></span></span></span><strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">: </span></span><a href="http://u.lipi.go.id/1483772871"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">2549-7480</span></span></a><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"> - &nbsp;</span></span></span></span></span></span></strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"> e-ISSN: </span></span></span></span></span><a href="http://u.lipi.go.id/1458376380"><strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">2549-6301</span></span></span></span></span></strong></a></span></p> en-US aidye89@gmail.com (Ahmad Homaidi) jurnalinformatika@ibrahimy.ac.id (TIM Jurnal JIMI) Wed, 30 Jun 2021 00:00:00 +0000 OJS http://blogs.law.harvard.edu/tech/rss 60 Pengaruh Jumlah Record Dataset Terhadap Algoritma Klasifikasi Berdasarkan Data Customer Churn https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1223 <p>Telecommunication is one of the fastest growing industrial sectors so that there are more telecommunication companies. This can create various threats if the company does not use the strategy properly. Customer churn refers to the level of customer reduction which is one of the threats to reducing the company's revenue. This is an important issue for developing companies to evaluate in order to reduce the potential for churn that occurs. The initial stage that needs to be done is to predict customers who have the potential to switch from the company, one of which is the data mining approach. Classification is a data mining technique that can predict the class of datasets with various existing classification algorithms. The purpose of this study is to identify the effect of the number of dataset records on several classification algorithms. This research was conducted based on the CRISP-DM method by applying three classification algorithms, namely Logistic Regression, Naïve Bayes, and Decision Tree C4.5. The results showed that the greater the number of records in the dataset, the higher the accuracy value will be obtained. In dataset-1, logistic regression is a better algorithm based on an accuracy value of 80.09%, while naïve Bayes is superior based on an AUC value of 0.733 and an execution time of 0.00798 seconds. In dataset-2, it is found that decision tree is an algorithm that is more suitable than logistic regression and naïve Bayes algorithms, with an accuracy of 91.9% and an AUC value of 0.846 which is included in the good classification criteria. However, in execution time, the naïve Bayes algorithm only takes a processing time of 0.00403 seconds.</p> Anita, Anggito Wicaksono, Tesa Nur Padilah Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1223 Tue, 29 Jun 2021 16:30:31 +0000 Kombinasi Metode AHP dan TOPSIS dalam Pemilihan Bibit Sayuran Berdasarkan Kondisi Tanah dan Syarat Tumbuh Tanaman https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1232 <p>The majority of farmers are still unsure of which vegetable seeds are appropriate for planting on this property. This is due to farmers' lack of understanding of the conditions for planting these vegetable seeds on their fields. Due to farmers' and the general public's lack of understanding of land suitability evaluation, vegetable seeds have not been planted with optimum results because the requirements required for these vegetable crops do not match the land conditions that sustain vegetable growth. Understanding the significance of choosing vegetable seeds based on the adaptability of selecting land and plants also relies solely on farmers' scant knowledge. As a result, the authors believe that more research is needed to decide the best vegetable seeds for cultivation based on soil suitability and plant growth requirements. The AHP approach is very analytical and well-suited to determining the priority weight of each norm, which will later be used as a rating reference by the TOPSIS method. Based on the degree of soil suitability and the conditions for proper growth, it can be calculated that vegetable seeds will be planted later as an alternate, accurate, and dynamic approach</p> Asep Syaputra Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1232 Wed, 30 Jun 2021 06:21:00 +0000 Asset Management Menggunakan QR Code dengan Metode QR Code Generator (Studi Kasus : Badan Narkotika Nasional Karawang) https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1239 <p><em>The problem that occurs at the Karawang National Narcotics Agency (BNNK) is that there is no information regarding existing asset data, both from the name of the item, year of acquisition, item code, and item serial number. Therefore, the author will create a QR code that contains information about the items in BNNK so that it can be easily accessed and information about these items can be known and can make it easier for employees there when the Ministry of Finance will audit the items related to assets at the BNNK office. Therefore, this study proposes a research related to asset management using a QR code for items at BNNK. The method used in making this QR code is using the QR generator method to simplify the process of making QR codes and making designs for QR codes that will made. For testing the QR code we use beta testing so that we can know in advance the performance and output generated by the QR code. This study produces a QR code that is in accordance with the request of related parties and makes it easier for employees in the goods section to find out data about assets owned by BNNK and help BNNK to carry out asset management on items in the office.</em></p> Satria Adi Nugroho, Arip Solehudin, Didi Juardi Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1239 Wed, 30 Jun 2021 14:04:01 +0000 Peringkas Otomatis Teks Berbahasa Arab Menggunakan Algoritma TextRank https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1231 <p>Increasingly, the amount of data in the form of text documents scattered on the internet is getting bigger. It took a very long time to get the information from each of these documents. For this reason, several researchers developed the Automatic Text Summarizer to summarize text automatically, so that the time needed to get important information from the entire document can be faster. Research that focuses on automatic summarization of Arabic texts is very rare. In fact, there are more than 300 million Arabic speakers in the world and Arabic is the official language at the United Nations. Therefore, this study develops a model that can perform text summarization automatically using the TextRank algorithm. The test results using Q&amp;A Evaluation show very good results with details of the suitability of the summary results with the original text by 90%, the suitability of the summary results with Arabic grammar is 91.43%, the suitability of the summary results is 90%, the ease of understanding the summary results is 90%. and the useful aspects of the model developed were 91.43%.</p> Muhammad Fikri Hidayattullah, Ardhiyan Azizi Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1231 Wed, 30 Jun 2021 14:57:19 +0000 Analysis of Information Security Using ISO 27001 and Triangular Fuzzy Number Weighting https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1224 <p>The business process of an organization can’t be done properly without appropriate information management, in which information is an important asset that needs to be protected with the utmost care and concern. Information security is a way to protect information from large scale threats, thus to ensure the sustainability of the organization's operational, to reduce business risks and to increase business opportunity and return of investment. This research is conducted to measure the accountability of ISO 27001 in assisting the organization to document the information security policy. ISO/IEC 27001:2005 is a standard of information security that is widely used, openly accepted and implemented, and suitable for providing rules related to implementation and evaluation of the information security system. The assessment from ISO controls and objectives will be converted into a triangular fuzzy number to help in the analysis purpose. The fuzzy number is used to simplify the measurement. The result shows that the organization is not yet complying with the standard procedures of the Information Security Management System so it is needed to document the security policy based on the ISO 27001 framework standard.</p> Siti Alvi Sholikhatin, Khairunnisak Nur Isnaini Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1224 Wed, 30 Jun 2021 15:57:53 +0000 Review Analisis Produk Marketplace Online pada Algoritma Support Vector Machine https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1227 <p>With the presence of a marketplace, internet users are able to shop by cellphones or laptops which ease them to process the transactions. This advantage is the key to the popularity of e-commerce and marketplaces in the 21st century. Considering that users prefer having e-commerce to going out and looking for products. Internet users are still hesitant in choosing a good and bad marketplace since there is a disappointing marketplace system and a deficient service. The Researcher will make a selection of the product marketplace based on opinions or review comments. The stage of selecting marketplace products is based on an opinion or public opinion who buys goods on the selected marketplace, the opinion is given into online opinions such as comments on the marketplace. The comments that are used as samples will be processed and grouped into data sets. In this case, the researcher processes the classification or grouping of data by applying the Support Vector Machine (SVM) method in accordance with the classification of processing data sets in the form of text. After being applied to the SVM method, the accuracy value is 75.92%, the SVM method produces a fairly good accuracy value on the dataset in the form of text classification in the marketplace review. From the results of testing the data, it can help readers in determining a good marketplace.</p> Rizqi Agung Permana, Sucitra Sahara Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1227 Wed, 30 Jun 2021 16:18:27 +0000 Perbandingan Penggunaan System Usability Scale dan Usefull, Satisfaction and Ease of Use Questionnaire pada Usability Testing https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1236 <p>Since the emergence of the Covid-19 virus in Indonesia, learning activities in the education system have been changed to distance learning using online media. The most widely used application according to the results of interviews with teacher representatives from 4 vocational schools in Karawang Regency is Google Classroom. However, the application received a poor rating based on the rating on the Google Play Store. So that usability testing is carried out in order to assess the effectiveness, efficiency and user satisfaction of the application. There are several usability testing techniques, including (SUS) System Usability Scale and Usefull, Satisfaction and ease of Use (USE) Questionnaire. This study aims to obtain the results of usability testing and a comparison between the two techniques used. Both have some similarities where the analysis can be done using any media, it's just that there are differences in the number of questions and data analysis. The System Usability Scale (SUS) technique contains 10 questions while the Usefull, Satisfaction and ease of Use (USE) Questionnaire technique contains 30 questions with 3 main dimensions, namely Usefulness, Satisfaction and Ease of Use. The research method used is Product Moment Pearson’s method for data validity analysis and Cronbbach's Alpha method for data reliability &nbsp;analysis. This research is a quantitative descriptive study conducted on 50 high school students/equivalent and university students. The results of the questionnaire technique (SUS) System Usability Scale state that Google Classroom has a good interface with a score of 72 with advantages in ease of use and desire to use it again, while based on the Usefull, Satisfaction and ease of Use (USE) Questionnaire technique states Google Classroom has an average value of 84% with 81% (usefulness), 86% (ease of use), 87% (ease of learning) and 83% (satisfaction). Then according to the comparison, the Usefull, Satisfaction and ease of Use (USE) Questionnaire technique is stated to be better with a reliability value of 0.967 while (SUS) System Usability Scale only has reliability (0.634).</p> Sifa Amalia Purnamasari, Nono Heryana, Kamal Prihandani Copyright (c) 2021 Jurnal Ilmiah Informatika https://creativecommons.org/licenses/by-nc/4.0 https://journal.ibrahimy.ac.id/index.php/JIMI/article/view/1236 Wed, 30 Jun 2021 17:35:33 +0000