Inform : Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi https://ejournal.unitomo.ac.id/index.php/inform <hr> <table class="data" width="100%" bgcolor="#f0f0f0"> <tbody> <tr valign="top"> <td width="20%">Journal title</td> <td width="80%">&nbsp;Inform : Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi</td> </tr> <tr valign="top"> <td width="20%">Initials</td> <td width="80%">&nbsp;Inform</td> </tr> <tr valign="top"> <td width="20%">Abbreviation</td> <td width="80%">&nbsp;Inf. J. Ilm. Bid. Teknol. Inf. dan Komun.</td> </tr> <tr valign="top"> <td width="20%">Frequency</td> <td width="80%">&nbsp;twice a year</td> </tr> <tr valign="top"> <td width="20%">DOI</td> <td width="80%"><strong>prefix 10.3176</strong></td> </tr> <tr valign="top"> <td width="20%">Online ISSN</td> <td width="80%">2581-0367</td> </tr> <tr valign="top"> <td width="20%">Print ISSN</td> <td width="80%">2502-3470</td> </tr> <tr valign="top"> <td width="20%">Editor-in-chief</td> <td width="80%">&nbsp;Achmad Choiron, S.Kom.,MT.</td> </tr> <tr valign="top"> <td width="20%">Managing Editor</td> <td width="80%">&nbsp;Anik Vega Vitianingsih, S.Kom, MT</td> </tr> <tr valign="top"> <td width="20%">Publisher</td> <td width="80%">&nbsp;Universitas Dr. Soetomo</td> </tr> <tr valign="top"> <td width="20%">Citation Analysis</td> <td width="80%">&nbsp;<a href="https://scholar.google.co.id/citations?user=SMpWeP8AAAAJ&amp;hl=id&amp;authuser=3">Google Scholar</a></td> </tr> <tr valign="top"> <td width="20%">Template</td> <td width="80%">&nbsp;<a href="https://drive.google.com/file/d/1Yv8XKguPxyqmkj3dpttH8AZlfsui5Xhi/view?usp=sharing">Download</a></td> </tr> </tbody> </table> <hr> <p><span style="font-weight: 400;">Inform: Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi is one of the journals published by Informatics Engineering Department of Dr. Soetomo University, was established in January 2016. Inform is a double-blind peer-reviewed journal that aims to publish high-quality articles dedicated to the field of information and communication technology. The journal publishes twice a year on January and July, containing 12 articles for each issue</span></p> <p><strong>ISSN <a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1452842158&amp;1&amp;&amp;" target="_blank" rel="noopener">2502-3470 (Print) </a> | <a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1500372231&amp;1&amp;&amp;" target="_blank" rel="noopener"> 2581-0367 (Online)</a></strong></p> <p><br> <strong>Focus and Scope</strong>:</p> <p>Scientific research related to information and communication technology fields, including Software Engineering, Information Systems, Human-Computer Interaction, Architecture and Hardware, Computer Vision, Pattern Recognition, Computer Application and Artificial intelligence, Game Technology, and Computer Graphics, but not limited to informatics scope.</p> en-US <p dir="ltr">Authors who publish with&nbsp;Inform: Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi agree to the following terms:</p> <ol> <li class="show" dir="ltr"> <p dir="ltr">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="http://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution License (CC BY-SA 4.0)</a> that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.&nbsp;</p> </li> <li class="show" dir="ltr"> <p dir="ltr">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.</p> </li> <li class="show" dir="ltr"> <p dir="ltr">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.</p> </li> </ol> vega@unitomo.ac.id (Anik Vega Vitianingsih) journal.inform@unitomo.ac.id (Litafira Syahadiyanti) Sun, 31 Jan 2021 17:13:49 +0700 OJS 3.1.1.0 http://blogs.law.harvard.edu/tech/rss 60 Generating SQL Command Syntax Using MySQL Based on Typing Command Sentence https://ejournal.unitomo.ac.id/index.php/inform/article/view/3305 <p class="IEEEAbtract">Information retrieval system is a system that is widely used to retrieve information. This research will discuss how the system finds back the information stored in database tables. Tables in the database are arranged to store all forms of data entered by database users so that later the stored data can be used again. Re-accessing the database's information must go through a mechanism known as a database management system (DBMS). One of the most widely used DBMS is MySQL. By using a DBMS, information and data can be manipulated according to user needs. Data manipulation in the database is done in a special language, namely SQL (Structure Query Language). Mastery of SQL commands is an obligation for database users so that the manipulated data can produce the required information. However, many database users still do not understand how the actual SQL command syntax manages and manipulates data into information. This is, of course, very risky if the solution is not immediately sought because it will hinder the process of retrieving information from the data stored in the database. For this problem to be resolved, it is necessary to design a system that can help database users translate their wishes into SQL command syntax. This paper will discuss how a command in Indonesian can be translated into SQL command syntax. The method used to solve this research problem is rule-based. There are two stages in the main process: the pre-processing stage, which consists of a word tokenization process, and a translation stage, including a keyword grouping process. This keyword grouping process consists of the keyword group analysis phase, table and column analysis, identification of SQL commands, and mapping of SQL commands. From all stages that have been passed and testing of 7 scenarios with ten (10) commands for each scenario, the accuracy is 81.42%. The inaccuracy in the testing process is more a problem of displaying data from two or more tables, for example, using the join table command. This problem can be addressed by adding new rules for the use of table joins.</p> Bonifacius Vicky Indriyono, Zudha Pratama ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3305 Sun, 31 Jan 2021 17:12:09 +0700 Optimization Economic and Emissions of Hydro and Thermal Power Plants in 150 kV Systems Using the Dragonfly Algorithm https://ejournal.unitomo.ac.id/index.php/inform/article/view/3320 <p class="IEEEParagraph">Electricity is one of the energies required by daily living since the greater demand for electricity increases greenhouse emissions that create emission gases resulting in global climate change. The main portion of the output cost is fuel's cost to manufacture electrical energy in thermal turbines. The use of electrical energy is currently rising increasingly following the increasing population. The research aims to optimize hydro generation to minimize thermal generation expense and address economic problems and pollution from shipping. With 2016b using Matlab applications and the lambda iteration process, the analysis method uses the Dragonfly Algorithm method. The analysis found that the average cost of fuel consumption provided by the Dragonfly Algorithm method was IDR 151,164,418 per day with an emission of 917.40 tons per day, based on the simulation results the Dragonfly Algorithm in testing by considering the emission of 5 practical steps. Meanwhile, with the emission of 918,044 tonnes per day, the average cost of fuel consumption produced by the Lambda Iteration method is IDR 151,202,209 per day. Test results can enhance the fuel consumption cost of IDR 37,791 and emissions of 0.641 tons with the Dragonfly Algorithm process.</p> Bayu Setyo Wibowo, Susatyo Handoko, Hermawan Hermawan ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3320 Sun, 31 Jan 2021 17:12:14 +0700 Real-Time Telemetry Data Monitoring System on Soil Movement of Railway Tracks https://ejournal.unitomo.ac.id/index.php/inform/article/view/3339 <p class="IEEEAbtract">A telemetry data monitoring system is needed to monitor land shifting. This system consists of an ATMega328 microcontroller, a Linear Variable Differential Transformer (LVDT) and a rheostat, an accelerometer sensor, a rain gauge tipping bucket, and the HC-12 radio telemetry module. Normally, the LVDT reads the land shift in the 0-20 mm range, the Rheostat is capable of shifting up to 66 mm, the accelerometer sensor reads less than 20 deg of data, and the rain gauge tipping bucket sensor creates the amount of rainfall below 50 mm/hour which is then sending real-time data regularly for 24 hours. The buzzer installed in the field will sound if the LVDT reads land shift more than 30 mm, Rheostat more than 51 mm, and the accelerometer sensor reads data more than 45 deg; also, the rain gauge tipping bucket sensor reads more than 70 mm/hour. This test creates parameter data. So that shift data can be monitored.</p> Teguh Arifianto, Anindira Listy, Sunardi Sunardi ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3339 Sun, 31 Jan 2021 17:12:16 +0700 Early Detection of Overheating in Motorcycle Disc Brakes Based on Arduino https://ejournal.unitomo.ac.id/index.php/inform/article/view/3348 The braking system is very important on a motorcycle. The primary function of the braking system is to slow down and even stop the motorcycle. The braking system using disc brakes on motorcycles is commonly used today, especially on automatic transmission motorcycles. One of the disadvantages of disc brakes is the heat caused by the disc's friction with the brake pads if you apply continuous braking. This continuous braking is often done by a motor rider when crossing downhill roads in mountainous areas. Excessive heat in the disc brakes causes the brake fluid to boil, resulting in air bubbles resulting in braking failure. The failure of the braking system on a motorcycle is hazardous for the rider and others. The experimental method detects braking system failure by catching the disc brake's temperature with a touchless temperature sensor, MLX90614. Temperature detection is processed with Arduino as a control, and the temperature is displayed on the LCD. If the disc brake temperature is above 200<sup>o</sup>C, a buzzer is activated as a warning to the driver. The test results show that the system can display a temperature reading on the LCD lower than the thermometer gun, with the most inferior reading difference of 0.2<sup>o</sup>C and the highest 0.4<sup>o</sup>C. The system can also display notifications to users on disc brake temperatures above 200<sup>o</sup>C, namely at temperatures of 211.1<sup>o</sup>C, 224.3<sup>o</sup>C, and 237.5<sup>o</sup>C, which were achieved at 200, 225, and 250 seconds. Yudi Kristyawan, Muchammad Asro Rofi’i ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3348 Sun, 31 Jan 2021 17:12:20 +0700 Improvement of DC Motor Speed Control for Mobile Robot to Minimize Slip Phenomenon https://ejournal.unitomo.ac.id/index.php/inform/article/view/3406 <p class="IEEEAbtract">Slip on the mobile robot has a significant impact on the maneuver and the accuracy of the mobile robot movement. The slip phenomenon occurs because of the loss of traction between the surface and the wheels due to the spontaneous acceleration or declaration application. This paper presents a method to improve DC motor performance by using slip control as an observer such that the slip phenomenon effect can be minimized. The performance that will be analyzed is the accuracy of motor speed and robot position accuracy when the robot is moving. The result shows that the Root Mean Squared Error (RMSE) for the motor speed performance that does not use slip control is 2.680, the system using slip control produces RMSE 1.3393. Regarding the robot position accuracy, the RMSE of the system that does not use slip control is 0.0379, the system using slip control is 0.0065.</p> Bayu Sandi Marta, Dewi Mutiara Sari ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3406 Sun, 31 Jan 2021 17:12:23 +0700 Intercept Algorithm for Predicting the Position of Passing the Ball on Robot Soccer ERSOW https://ejournal.unitomo.ac.id/index.php/inform/article/view/3353 ERSOW is the name of a wheeled soccer robot that competes in the <em>Kontes Robot Sepak Bola Indonesia</em> (KRSBI). The soccer robot plays a soccer game based on the rules adapted from the human soccer game. The ERSOW team was formed in 2016. Starting in 2017, ERSOW participated in the KRSBI with the Middle Size League (MSL) type. Research in the field of wheeled soccer robots is mostly carried out on robot intelligence, such as how robots detect and look for balls, dribble, pass the ball, avoid opponents, and communicate in teams. This research focuses on the ability that the robot can pass the ball in KRSBI 2020. There are adjustments to the rules for its implementation online where the robot has to pass the ball and score as many goals as possible. The robot's ability to know the direction of ball movement and cut the ball movement or intercept is needed. By utilizing data processing from vision to obtain ball speed data and speed algorithm calculations, the passing ball method has a small chance of missing. Based on the results of experiments that have been carried out, the success of ERSOW in passing using this method is 94.7%. Mochamad Mobed Bachtiar, Fadl Lul Hakim Ihsan, Iwan Kurnianto Wibowo, Risky Eka Wibowo ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3353 Sun, 31 Jan 2021 17:12:26 +0700 Identification of Freshness of Marine Fish Based on Image of Hue Saturation Value and Morphology https://ejournal.unitomo.ac.id/index.php/inform/article/view/3228 Euthynus is one of the fish that is widely consumed for the enjoyment of the people of Indonesia or abroad, because of its very soft quality, easy to obtain, and contains a lot of essential protein amino acids that are good for the body. This research aims to identify the freshness of the fish purchased based on the eyes and fish gills. The initial process of identifying the freshness of fish uses several methods. Image input process through image object taking using a cell phone camera. The image object is used to determine the value of the RGB image object. RGB color extraction clarifies the value obtained from the image object before proceeding to the next process. Image resize is the process of cutting the image on the desired object part. Image conversion using the HSV method was used to determine the freshness of fish in the gills. The Local Binary Pattern method is used to determine the freshness of the fisheye. The next step is to refine the RGB image into Morphology. The KNN (K-Nearest Neighbor Method) method is used to group objects based on learning data closest to the object. The journal analysis results on the comparison of methods, after 45 trials for each method, found that the Hue Saturation Value method obtained the highest success by 90% and for the texture value obtained 85% success. Ekojono Ekojono, al wegi herman, Mentari Mustika ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3228 Sun, 31 Jan 2021 17:12:31 +0700 Usability Analysis of Website-based Applications by Adopting User Satisfaction Models https://ejournal.unitomo.ac.id/index.php/inform/article/view/3350 <p class="IEEEParagraph">Technological developments in supporting and assisting all human work activities are felt to be equally beneficial. <em>Shirouoshien</em> is a business that is engaged in commerce and offering products that it sells to its customers. <em>Shirouoshien</em> uses a website-based application to promote products more efficiently. Evaluation of the <em>shirouoshien</em> application aims to find out how the usability of the website is for users. In general, the criteria that determine that a website is usable (has a high level of usability) is if users can find and get what they need and understand from the <em>Shirouoshien</em> website. The main problems to be examined in this study then the problem will be broken down into several. The main issues need to be considered in the usability analysis of website-based applications, variables that influence user acceptance of the application in the usability framework, and factors that describe the acceptance and use of website-based applications. In general, through analysis of the usability aspect in the next development plan framework, this application still needs further improvement and development to meet customer needs regarding products and product promotion. The results and general discussion through usability aspect analysis in the next development plan framework still need further improvement and development to meet customer needs related to products and product promotion.</p> Akhsani Taqwiym ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3350 Sun, 31 Jan 2021 17:12:35 +0700 Implementation of Multiprocessing and Multithreading for End Node Middleware Control on Internet of Things Devices https://ejournal.unitomo.ac.id/index.php/inform/article/view/3346 <span lang="EN">Previously, an educational robot system was built by incorporating Internet of Things (IoT) elements. Over time, this educational robot has been implanted with a middleware. Middleware has a role in receiving command data from the real-time database, access sensors, actuators, and sending feedback. Middleware contains protocols that translate commands between high-level programming and Raspberry Pi hardware. The focus of this research is to improve the performance of the middleware to pursue processing time efficiency. For this reason, it is necessary to implement multiprocessing and multithreading in handling several tasks. The division of tasks on the CPU has been adjusted automatically to not work on just one core or block of memory. Several program functions can run in parallel and reduce program execution time efficiently. The tasks handled are sensor reading and actuator control in the form of a motor. Testing has been carried out to perform multiprocessing and multithreading tasks to process six sensors and five actuators. Multiprocessing requires an average of 1.00% to 15.00% CPU usage and 2.70% memory usage. Meanwhile, multithreading involves an average of 1.00% to 71.00% CPU usage and 3.30% memory usage.</span> Iwan Kurnianto Wibowo, Adnan Rachmat Anom Besari, Muh. Rifqi Rizqullah ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3346 Sun, 31 Jan 2021 17:12:37 +0700 Social Media Analysis Using Probabilistic Neural Network Algorithm to Know Personality Traits https://ejournal.unitomo.ac.id/index.php/inform/article/view/3307 <p class="IEEEAbtract">The Internet creates a new space where people can interact and communicate efficiently. Social media is one type of media used to interact on the internet. Facebook and Twitter are one of the social media. Many people are not aware of bringing their personal life into the public. So that unconsciously provides information about his personality. Big Five personality is one type of personality assessment method and is used as a reference in this study. The data used is the social media status from both Facebook and Twitter. Status has been taken from 50 social media users. Each user is taken as a text status. The results of tests performed using the Probabilistic Neural Network algorithm obtained an average accuracy score of 86.99% during the training process and 83.66% at the time of testing with a total of 30 training data and 20 test data.</p> Mohammad Zoqi Sarwani, Dian Ahkam Sani ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3307 Sun, 31 Jan 2021 17:12:46 +0700 Optimizing K-Means Algorithm by Using Particle Swarm Optimization in Clustering for Students Learning Process https://ejournal.unitomo.ac.id/index.php/inform/article/view/3459 <span lang="EN-AU">In the implementation of learning, several factors affect the student learning process, including internal factors, external factors, and learning approach factors. For example, the physical and spiritual condition of students. Physiological aspects (body, eyes and ears and talents of students, student interests). External factors, for example, environmental conditions around students, family, teachers, community, friends) Thus, learning achievement is significant because educational institutions' success can be seen from how many students learning achievement. This research's first focus is to do student clustering based on their learning process using 11 parameters. Second, using the PSO algorithm to get maximum clustering results. The research data were obtained from vocational secondary education institutions in the city of Pasuruan. The data is obtained from the results of school reports and questionnaires as much as 100 student data. Data attributes include environmental features, social features, and related school features to group student data for learning data processing. From the classification results using the PSO method, the silhouette value is 0.97140754, very close. These results indicate that the PSO method can improve the </span><span lang="IN">K</span><span lang="EN-AU">-</span><span lang="IN">M</span><span lang="EN-AU">eans clustering method's performance in the classification process of student learning interest. </span> Rudi Hariyanto, Mohammad Zoqi Sarwani ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 https://ejournal.unitomo.ac.id/index.php/inform/article/view/3459 Sun, 31 Jan 2021 17:12:47 +0700