JURNAL ILMIAH INFORMATIKA https://ejournal.upbatam.ac.id/index.php/jif <p align="justify">Jurnal Ilmiah Informatika&nbsp;(JIF) is a computer and information technology research journal published on the results of research in the field of computer technology, both broadly and specifically in certain fields related to computer information technology. The article to be published is original work and has never been distributed. The incoming articles will be reviewed by a team of reviewers who come from internal and external S1 Informatics Engineering study programs at Putera Batam University. JIF is published periodically every 6 months, namely in March and September.</p> Teknik Informatika en-US JURNAL ILMIAH INFORMATIKA 2337-8379 DETEKSI DINI PENYAKIT BALITA MENGGUNAKAN ALGORITMA SORENSEN BERBOBOT https://ejournal.upbatam.ac.id/index.php/jif/article/view/3744 <p>There are still many parents who do not have sufficient understanding in terms of toddler disease. One way to provide education is the availability of a system that can be used for consultation based on the symptoms of illness experienced by toddlers and the actions needed to overcome them. The system that will be built is an expert system that can relatively provide suggestions for solutions to children's health problems using the Case Based Reasoning (CBR) method. namely an expert system that uses case-based reasoning methods, namely looking for similarities of a disease compared to a disease that has existed before. In this study, the CBR method was combined with a weighting process using the pairwise comparison method which was within the scope of the AHP (Analytic Hierarchy Process) method. In comparing consultations with old diseases that already exist in the system, and looking for similarities from the comparison results, the Sorensen similarity algorithm is used. This study resulted in weights with 3 symptom categories, namely mild symptoms with a weight of 0.09, moderate symptoms with a weight of 0.24 and severe symptoms with a weight of 0.67 and will recommend several diseases with a similarity above 0.5 and diseases with a similarity below 0.5 will be entered into the revise table to find a solution.</p> Nur Kharisa Umami Setyawan Wibisono Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-11-27 2021-11-27 9 02 60 67 10.33884/jif.v9i02.3744 S SISTEM PAKAR DIAGNOSA KERUSAKAN MOTOR KAWASAKI KLX150 MENGGUNAKAN METODE CASE-BASED REASONING DENGAN ALGORITMA 3W-JACCARD https://ejournal.upbatam.ac.id/index.php/jif/article/view/3747 <p>In this day and age, motorbikes have an important role in transportation facilities, motorbike users are increasingly dense, especially in the city of Semarang, which is not accompanied by information media. The lack of media information regarding damage to the motorbike makes it difficult for someone to know the cause of the damage to the motorbike, not to mention the Kawasaki KLX150 which happens a lot of engine damage. For this reason, the expert system diagnoses motor damage by knowing the type of motor damage, after that diagnostics and alternative solutions to the problem are carried out. With this, the method and algorithm used is Case-Based Reasoning (CBR) using the Similarity 3W-Jaccard calculation, this second method and algorithm can be used to diagnose damage from the symptoms in the database. Each symptom has a weighted value of each, including a value of 5 (five) for severe symptoms, relating to engine and electrical parts, a value of 3 (three) for moderate symptoms, relating to braking and chains, a value of 1 (one) mild symptom, relating to with the indicator on the speedometer. The system will display 5 (five) types of damage calculated using the 3W-Jaccard Algorithm sorted by the highest value. The revision process will appear if the similarity calculation results are less than 0.6 (zero point six) because it is considered that the results are not sufficiently similar to the solution to be repaired, it needs to be reviewed and will be entered into the review table, then the expert will find a solution.</p> Edwin Febriansyah Edy Winarno Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 68 74 10.33884/jif.v9i02.3747 PENERAPAN DATA MINING PADA PENJUALAN MAKANAN DAN MINUMAN MENGGUNAKAN METODE ALGORITMA NAÏVE BAYES https://ejournal.upbatam.ac.id/index.php/jif/article/view/3755 <p>Changes in human behavior against the times, this causes business actors, especially culinary businesses to innovate so that the business they run continues to survive. With this competence, it causes more problems, one of which is the emergence of startups that eventually become competitors in the business world in all fields. All business owners have an innovation by analyzing food and beverage sales to generate new opportunities which will then be used to identify future opportunities. This affects the income and expenses obtained by companies and restaurants. This research paper generates new knowledge, namely by using the Na Bayve Bayes algorithm to generate an opportunity in the sale of food and beverages based on sales in the previous month. The results of the analysis process will be used for the benefit of restaurants in marketing optimization efforts. This new knowledge will also provide information such as the results of sales opportunities in the following months</p> Fauzan Alghifari Didi Juardi Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 75 81 10.33884/jif.v9i02.3755 ANALISIS KEAMANAN WEBSITE UNIVERSITAS INTERNASIONAL BATAM MENGGUNAKAN METODE ISSAF https://ejournal.upbatam.ac.id/index.php/jif/article/view/3758 <p>With the support of various types of media for delivering information, technological developments change over time. To facilitate access to information, one of them can use the media website. With the development of website technology, more and more parties are using it as a supporting medium for information transmission, including educational institutions in Indonesia. However, many administrators do not understand the security of the website created but pay more attention to the appearance and function of the website. As a result, there were cases of hacker attacks on websites that resulted in data leaks and changes in website appearance. Therefore, it is important to realize the importance of website security to prevent leakage of important data. Because there have been cases of hacker attacks that have occurred several times, the researchers conducted a security analysis of the main website of the Universitas Internasional Batam Institute using the ISSAF method.</p> Stefanus Eko Prasetyo Nurul Hassanah Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 82 86 10.33884/jif.v9i02.3758 PERBANDINGAN ALGORITMA CANNY EDGE DETECTION DAN PREWITT PADA DETEKSI STADIUM DIABETIK RETINOPATI https://ejournal.upbatam.ac.id/index.php/jif/article/view/3762 <p>Diabetes is a serious threat to human health. In 2016, non-communicable diseases including Diabetes accounted for 70% of the total causes of death in the world. Diabetes if left unchecked will cause complications that can attack other organs to cause blindness called Diabetic Retinopathy (DR). Ophthalmologists make a grouping of diabetic characteristics of retinopathy by observing the retinal images of the eye taken using a fundus camera. This method requires a long time in the observation that allows errors in making observations, so image processing is needed to detect and classify the stage of diabetic retinopathy suffered by the patient. Thus, this research aims to help the process of early treatment of patients with diabetic retinopathy so as not to cause blindness. The data used in this study is DB0 Diaret data with a pixel size of 128 x 104 and the amount of data is 131. The methods used in this system include Canny Edge Detection, Prewitt, and stadium readings using Artificial Neural Network Algorithms. In this study the highest accuracy results obtained on the Canny Edge Detection method with a value of 90% while the Prewitt method has a 79% result. So, we get the conclusion that Canny Edge Detection is considered better.</p> Vina Ardelia Effendy Febri Maspiyanti Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 87 94 10.33884/jif.v9i02.3762 IMPLEMENTASI STATIC APPLICATION SECURITY TESTING MENGGUNAKAN JENKINS CI/CD BERBASIS DOCKER CONTAINER PADA PT. EMPORIA DIGITAL RAYA https://ejournal.upbatam.ac.id/index.php/jif/article/view/3769 <p>PT. Emporia Digital Raya is an fintech company. The product include web and android application. However, in the deployment system, PT Emporia Digital Raya still uses an ancient system with a single vm system and only uses git for deployment to server. Even though at this time the deployment process of an application has grown very far. Therefore, in this study will created a system which is currently popular being used. This system is called DevSecOps. Devsecops will need a tools like Jenkins, Sonarqube, and Docker. The core of this system is the automation process where the deployment process is no longer done manually as before. With this system, it is hoped that will help speed up developer work and improve code quality.</p> Abriza Mahandis Shama Dian W. Chandra Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 95 99 10.33884/jif.v9i02.3769 IMPLEMENTASI DETERMINISTIC FINITE AUTOMATA (DFA) PADA PERANCANGAN APLIKASI PERHITUNGAN UANG HARIAN PERJALANAN DINAS KEMENTERIAN https://ejournal.upbatam.ac.id/index.php/jif/article/view/3770 <p>Each ministry always has a budget for official travel, especially for the daily money given to personnel who travel in exchange for daily expenses. With the current pendemi need to be held an application system that can reduce contact when handling official travel files. The design of this application will use the implementation of Deterministic Finite Automata (DFA) as an abstract machine to determine the state or stages to determine the transition between these stages to determine the daily money calculation of official travel. From the calculation of daily money will be made recapitulation to be verified and if it is considered appropriate and correct will be transferred to the account that travels to the office. This is the role in making abstract machines for the calculation of daily money using Deterministic Finite Automata (DFA) because each stage is right to one stage next until the last stage that prints proof of transfer.</p> Deny Robyanto Ade Priyatna Priyatna Eni Heni Hermaliani Frieyadie Frieyadie Windu Gata Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 100 104 10.33884/jif.v9i02.3770 APLIKASI PENGENALAN IRIS MATA MENGGUNAKAN METODE HOUGH TRANSFORM DAN GABOR WAVELET https://ejournal.upbatam.ac.id/index.php/jif/article/view/4205 <p>Biometric system is a development of the basic method of identification system by using the characteristics of humans as it’s object. These include face, fingerprints, signature, palms, iris, ears, sounds even DNA. Face recognition is one of the identification techniques in biometrics that uses part of the face as its parameter. One of the biometric parts of face is Iris. Iris is a unique part of the eyes, this is because the pattern of the somebody eyes will be quite different from the other, even genetically identical twins have different iris patterns. This research will use the Hough and Gabor method to perform iris recognition. The results show that the application has succeeded in recognizing the selected eye image if the eye image is registered in the database.</p> Fransisca Joanet Pontoh Fransiscus Xaverius Senduk Inggrit E. G. Pondaag Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 105 109 10.33884/jif.v9i02.4205 APLIKASI SISTEM PAKAR DALAM MENDIAGNOSIS PENYAKIT KULIT PADA MANUSIA BERBASIS VISUAL https://ejournal.upbatam.ac.id/index.php/jif/article/view/4439 <p>Health is a blessing that is very important for humans, most of us, many of us don't really care about skin diseases caused by fungi such as tinea versicolor, water fleas, ringworm and scabies. In general, people are quite aware of how to deal with the symptoms of skin diseases suffered. But it would be better to include medical participation in detecting a disease symptom, because many disease symptoms are considered trivial by some people but can be fatal to human skin. So it is necessary to make an application based on medical knowledge to diagnose skin diseases in humans which is used as a tool in obtaining information about skin diseases in humans and provide recommendations as the first action that must be taken to repeat skin diseases in humans. The knowledge base is structured in such a way into a database with several tables. Drawing conclusions in this expert system using the forward chaining inference method. The expert system will provide questions to the user in the form of symptoms of several diseases and the user will answer these questions. Until the user will get a solution from the results of the question earlier.</p> <p> </p> Rozi Meri Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-02 2021-09-02 9 02 110 115 10.33884/jif.v9i02.4439 PENERAPAN WEB PROXY DAN MANAGEMENT BANDWIDTH MENGGUNAKAN MIKROTIK ROUTERBOARD PADA KANTOR POS PALEMBANG 30000 https://ejournal.upbatam.ac.id/index.php/jif/article/view/4444 <p>The Palembang 30000 POS office which is supported by information technology has a computer network that is directly connected to the ISP (Internet Service Provider) which has a bandwidth allocation of 20 Mbps. The problem at the Palembang 30000 POS Office is that there is no web proxy and Bandwidth Management application, so employees can access various sites that interfere with employee performance and employees who use the internet for free result in uneven bandwidth usage. The purpose of this study is to implement a web proxy and bandwidth management, so that the bandwidth is evenly distributed, therefore it is necessary to divide the bandwidth using a proxy routerboard, the method used for bandwidth distribution is using the simple queue method. By implementing a web proxy, it can control internet usage and block website sites that have the potential to interfere with employee performance, by making bandwidth management able to limit bandwidth usage and share bandwidth equally on each client, so internet access is now running more stable.</p> Tamsir Ariyadi A Taufan Maulana Copyright (c) 2021 JURNAL ILMIAH INFORMATIKA http://creativecommons.org/licenses/by/4.0 2021-09-04 2021-09-04 9 02 116 122 10.33884/jif.v9i02.4444