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All Journal JURNAL SISTEM INFORMASI BISNIS CESS (Journal of Computer Engineering, System and Science) JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Ilmiah KOMPUTASI Sistemasi: Jurnal Sistem Informasi Sinkron : Jurnal dan Penelitian Teknik Informatika JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING JURNAL MEDIA INFORMATIKA BUDIDARMA SMARTICS Journal Indonesian Journal of Artificial Intelligence and Data Mining IJIS - Indonesian Journal On Information System Jurnal Teknik Informatika UNIKA Santo Thomas JurTI (JURNAL TEKNOLOGI INFORMASI) Jiko (Jurnal Informatika dan komputer) ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA JISTech (Journal of Islamic Science and Technology) JURNAL TEKNOLOGI DAN OPEN SOURCE Jurnal Teknologi Sistem Informasi dan Aplikasi IJISTECH (International Journal Of Information System & Technology) JOURNAL OF SCIENCE AND SOCIAL RESEARCH Simtek : Jurnal Sistem Informasi dan Teknik Komputer Jurnal Dedikasi Pendidikan EDUMATIC: Jurnal Pendidikan Informatika METIK JURNAL Jurnal Mantik Progresif: Jurnal Ilmiah Komputer Jurnal Ilmiah Sains dan Teknologi Zonasi: Jurnal Sistem Informasi Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Jatilima : Jurnal Multimedia Dan Teknologi Informasi G-Tech : Jurnal Teknologi Terapan JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) INFOKUM Jurnal Sistem Komputer dan Informatika (JSON) TIN: TERAPAN INFORMATIKA NUSANTARA Brahmana : Jurnal Penerapan Kecerdasan Buatan Journal of Computer Science, Information Technology and Telecommunication Engineering (JCoSITTE) Journal of Computer Networks, Architecture and High Performance Computing IJISTECH Journal La Multiapp Jurnal Teknologi Sistem Informasi dan Sistem Komputer TGD Bulletin of Computer Science Research KLIK: Kajian Ilmiah Informatika dan Komputer Instal : Jurnal Komputer Jurnal Info Sains : Informatika dan Sains Journal of Dinda : Data Science, Information Technology, and Data Analytics Jurnal Mandiri IT Jurnal Teknik Informatika Unika Santo Thomas (JTIUST) Jurnal Informatika Teknologi dan Sains (Jinteks) Jurnal Algoritma Edu Society: Jurnal Pendidikan, Ilmu Sosial dan Pengabdian Kepada Masyarakat SENTRI: Jurnal Riset Ilmiah Malcom: Indonesian Journal of Machine Learning and Computer Science International Journal of Science and Environment SmartComp VISA: Journal of Vision and Ideas Da'watuna: Journal of Communication and Islamic Broadcasting Future Academia : The Journal of Multidisciplinary Research on Scientific and Advanced The Indonesian Journal of Computer Science
Rakhmat Kurniawan R
UIN Sumatera Utara Medan
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Evaluasi Performa Support Vector Machine Classifier Terhadap Penyakit Mental Furqan, Mhd; Kurniawan, Rakhmat; HP, Kiki Iranda
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 10, No 2 (2020): Volume 10 Nomor 2 Tahun 2020
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21456/vol10iss2pp203-210

Abstract

Expression of genes found in the brains of autism, bipolar, and schizophrenia patients identified as overlapping. The overlap is a state in which the values of genes are similar. This paper aims to determine the best performance of support vector machines algorithm in classifying autism, bipolar, and schizophrenia based on the expression of genes using genome-wide association studies data. Using three support vector machine kernels, this study evaluates the performance of gaussian, laplacian, and sigmoid for genome-wide association studies datasets. The datasets were obtained from Psychiatric Genomics Consortium publications, where 660 data were taken with each disorder consisting of 220 data. This study proposes an optimal kernel for one-against-one and one-against-all multiclass support vector machine, and the performance is evaluated using accuracy. The study results show that the Gaussian kernel has the best accuracy performance compared to other support vector machines kernels in classifying genome-wide association studies data of autism, bipolar, and schizophrenia as early diagnosis.
Prototype of Temperature Control For Cold Chamber Using Fuzzy Based on Microcontroller Rakhmat Kurniawan. R
IJISTECH (International Journal of Information System and Technology) Vol 3, No 2 (2020): May
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v3i2.63

Abstract

Cold Chamber is a small cold room in a cooling system as a storage place for cold air before the air is flowed to the object to be cooled. A cooling system will be greatly influenced by temperature lowering sources. To be able to provide optimal results in a cooling system, it requires a cold chamber whose temperature can be controlled automatically. To be able to control the temperature, a tool is needed. So that the tool can control the temperature, the tool needs a sensor that can read the temperature in the cold chamber, namely DS18B20. This sensor works by reading the temperature of the environment and then sending it to the microcontroller. To control the temperature, the microcontroller will send commands to the fan which functions as a sender of cold air to the cold chamber, and a pump which functions to drain water on the hot side of the cooling element. The cold air source in this tool comes from Peltier TEC1-12706. The reading result and the desired temperature setting will be displayed on the LCD. If the actual temperature is greater than the desired temperature, the fan will blow more cold air into the cold chamber and the pump will flow water faster. If the actual temperature is less than the desired temperature, the fan will stop blowing and the pump will slow down the flow of water. With this tool, it will be easier to adjust the temperature in a cooling system.
PEMBUATAN SISTEM PENGATUR KETINGGGIAN DAN KEKERUHAN AIR KOLAM BAGI PARA PETERNAK IKAN GURAME DI DESA JATISARI (TANJUNG GARBUS-1) KECAMATAN LUBUK PAKAM Ilka Zufria; S Sriani; Rakhmat Kurniawan
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 28, No 1 (2022): JANUARI-MARET
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v28i1.28367

Abstract

Seiring berkembangnya teknologi otomatisasi sistem kendali dan mikrokontroler, berbagai alat yang praktis dan efisien telah banyak diciptakan. Tujuan pembuatan berbagai alat tersebut yaitu untuk memenuhi kebutuhan manusia dalam kehidupan sehari-hari, sehingga dapat dimanfaatkan untuk mempermudah rutinitas yang dilakukan manusia secara umum diera modern seperti saat ini. Untuk menunjang hal tersebut perlu didukung adanya sarana maupun prasarana yang disesuaikan dengan perkembangan teknologi yang ada.  Penggunaan air pada kolam ikan harus dikondisikan seefektif mungkin, agar dapat dilakukan proses penggantian air yang tepat. Artinya air kolam ikan diganti apabila kondisinya sudah keruh, sehingga tidak akan membuang-buang air yang kondisinya masih bersih. Oleh karena itu, diperlukan suatu cara agar bisa memantau dan mengatur ketinggian dan kekeruhan air dalam kolam dan mengatur penggantian air kolam secara otomatis, serta sistem yang dapat mengendalikan pompa secara otomatis untuk mengalirkan air kedalam bak kolam ikan. 
APPLICATION OF SPEED UP ROBUST FEATURES (SURF) AND FEATURES FROM ACCELERATED SEGMENT TEST (FAST) FOR INTRODUCTION OF PLACE Mhd. Furqan; Rakhmat Kurniawan; Mey Hendra Putra Sirait
INFOKUM Vol. 9 No. 1,Desember (2020): Data Mining, Image Processing,artificial intelligence, networking
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (802.08 KB)

Abstract

With the current technology that is starting to develop rapidly, it can match an image with another image. In recognizing an image, there needs to be a process that will be carried out in image matching, but current image matching is still comparing pixels between two images. To compare between images, the color and resolution and shape of the image pixels affect the recognition results in an image. Therefore, to deal with this problem, the algorithms that can be used in the work process of this program are the Speed ​​Up Robust Features (SURF) algorithm and Features from Accelerated Segment Test (FAST). FAST is a method for determining the angle that is in an image while the SURF algorithm can describe the features that exist in an image so that image matching no longer matches between pixels but based on the descriptors that have been generated and the matched results will be listed on the database, using the SURF algorithm , there is no need to worry about the resolution, color, and shape of the image to be matched. Tests that were carried out were still successful with a precision value of 0.9, which means that the value of successful matching is 9% and with a recall value of 100% and a value that has reached 100% means that the number of points is similar to the number of points that have been matched
APPLICATION OF SMART ENVIRONMENT WITH FUZZY LOGIC METHOD BASED ON INTERNET OF THINGS Mhd Furqan; Rakhmat Kurniawan R; Ahmad Fauzi
INFOKUM Vol. 9 No. 1,Desember (2020): Data Mining, Image Processing,artificial intelligence, networking
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.31 KB)

Abstract

In Indonesia, air pollution is a very concern, many risks are resulting from air pollution, including the risk of blood cancer. But many people are not aware of this as a result, many are affected by respiratory infections, asthma, and lung cancer due to air pollution. Along with technological developments, a new concept emerged, namely the Internet of things, from the development of the Internet of Things, which resulted in many discoveries, one of which was the Smart Environment. With Smart Environment we can monitor the quality level of an environment, one of which is air quality. The amount of information related to air pollution is the reason for the author to make a tool that uses the Nodemcu microcontroller-based MQ7 sensor which is expected to help reduce the risk generated from air pollution, especially carbon monoxide (CO). This tool also applies the concept of the internet of things so that the results of sensor readings can be monitored online from anywhere and anytime in realtime. There is a classification of air pollution levels in this tool including healthy air, unhealthy air, and dangerous air, healthy air is in the value range 0-100 PPM, unhealthy air is in the value range of 100-200 PPM, and dangerous air is in the value range> 200 PPM. Fuzzy logic was chosen as the method in this research because this method is suitable for most real-time problems such as making decisions to determine the level of air pollution that is uncertain and changing. The results of the MQ7 sensor detection of carbon monoxide are monitored through the Indonesian-made Internet of Things platform, Antares.id.
APPLICATION OF FUZZY LOGIC IN AUTOMATIC COOLING COMPUTER DESIGN USING PELTIER BASED ON ATMEGA328 MICROCONTROLLER Rakhmat Kurniawan R; Abdul Halim Hasugian; Rizky Pratama Putra
INFOKUM Vol. 10 No. 1 (2021): Desember, Data Mining, Image Processing, and artificial intelligence
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1495.686 KB)

Abstract

Slow or lag computer problems can be caused by overheating of computer hardware such as the processor, if the computer overheats it will reduce the performance of the processor performance. In general, computers are equipped with coolers such as air cooling to avoid overheating, but for heavy and intensive work, air cooling is still not effective in cooling computer processors, so in this study an automatic computer cooling device was created that was effective in cooling computers. This tool uses a peltier to cool the coolant that flows on the cold side of the peltier. To control the Peltier, fuzzy logic is applied to control the temperature of the computer processor. This fuzzy logic will be embedded into the microcontroller. Cold generated based on the information provided by the computer to the microcontroller via serial communication. Based on the benchmark test, the average Core1 Temperature is 26.75oC, Core2 Temperature is 25.25oC and Package Temperature is 29oC using water cooling Peltier with fuzzy logic, while with water cooling the average Core1 Temperature is 33.5oC, Core2 Temperature is 33oC and Package Temperature is 35.25oC and with The average water cooling radiator has a Core1 temperature of 32.25oC, a Core2 temperature of 31.5oC and a Package Temperature of 34.25oC before performing the benchmark test. When the benchmark test runs, the average Core1 Temperature is 52.25oC, Core2 Temperature is 51oC and Package Temperature is 54.25oC using water cooling Peltier with fuzzy logic, while with water cooling the average TemperatureCore1 is 65oC, Core2Temperature is 64.25oC and PackageTemp is 67.25oC as well as with water The average cooling radiator temperature is Core1 57oC, Core2 Temperature 59oC and Package Temperature 59.25oC with an average room temperature of 30oC during the test. From the test results by comparing the tools in this study, water cooling Peltier with fuzzy logic is better and more effective in cooling computer processors. Keywords: Computer Cooling, Fuzzy Logic, Microcontroller
Digital Image Security System Using Spritz Algorithm Mhd Furqan; Rakhmat Kurniawan; Abdul Halim Hasugian; Imam Zaki Husein Nst
INFOKUM Vol. 10 No. 1 (2021): Desember, Data Mining, Image Processing, and artificial intelligence
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (816.652 KB)

Abstract

Private and confidential digital imagery is particularly vulnerable to eavesdropping by irresponsible parties. Especially when distributed through the internet network such as on facebook chat-based applications, whatsapp and e-mail media. The image sent is sometimes often an image that is confidential and must be maintained security. In order to maintain the security of digital imagery can be done with the use of cryptographic techniques. Cryptographic techniques can secure digital images by changing the pixel values of the digital image so as to produce pixel values that are different from the original image to be secured. The research will use the Spritz algorithm for encryption and decryption of digital images in image security applications. The result of the Spritz Algorithm's encryption results in pixel values that are much different from the original pixel values. So that the image of encryption is more secure to be distributed through intermediary media.
Implementation Of Sugeno Fuzzy Logic Method On Microcontroller Based On Tomato Sorter Mhd Furqan; Rakhmat Kurniawan; Abdul Halim Hasugian; Siti Sumita Harahap
INFOKUM Vol. 10 No. 1 (2021): Desember, Data Mining, Image Processing, and artificial intelligence
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.025 KB)

Abstract

As it is well known that tomatoes have different qualities and colors of ripeness, it is very necessary for a farmer to sort the tomatoes because then the farmers can target the marketing of tomatoes among the market, supermarkets, etc. Sorting tomatoes manually requires good concentration so as not to cause sorting errors, but sometimes concentration can be reduced due to sitting too long, etc., so that sorting occurs at will without paying attention to the tomatoes and this can also take a long time. To overcome this problem is to offer the manufacture of a tomato fruit sorter automatically by applying the Sugeno fuzzy logic method, which is a cryptic method which means that a value can be between true and false. With this tool can overcome the problem of sorting tomatoes and can minimize time. This Sugeno fuzzy logic method is used and utilized in processing the value of tomatoes in the form of RGB values. The result of this research is a tool that is able to sort tomatoes according to conditions, namely ripe, half-ripe, and unripe.
Edge Detection To Detect Broken Bone On X-Ray Images Using Kirsch Method Mhd Furqan; Rakhmat Kurniawan; Abdul Halim Hasugian; Reza Muhammad
INFOKUM Vol. 10 No. 1 (2021): Desember, Data Mining, Image Processing, and artificial intelligence
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.995 KB)

Abstract

Bone is the most important part of the human body and not a few people who have broken bones caused by accidents, neglect and because of age. One of the methods used to identify broken bones is to read the x-ray images manually. Manual checking takes longer and allows mistakes in making decisions when doing a manual check. What's more in reading an x-ray image requires a strong background light (as lighting) to make objects in the X-ray image appear clearer, so we need a method that can facilitate the orthopedic doctor in identifying broken bones. The method proposed in this study is edge detection using the kirsch method. Edge detection aims to improve the appearance of margins, boundaries or objects in the image. The Kirsch method will detect the edges of the eight cardinal directions, namely east, northeast, north, west, northwest, southwest, south and southeast, by convoluting the image using eight kernels. From the results of testing with these methods each cardinal direction has different results. In this study the best results from the eight cardinal directions are the southeast.
Sistem Validasi Keaslian Dokumen Digital Berbasis QR-Code Rakhmat Kurniawan R; Rina Filia Sari; Noor Azizah
(JurTI) Jurnal Teknologi Informasi Vol 4, No 2 (2020): DESEMBER 2020
Publisher : Universitas Asahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36294/jurti.v4i2.1722

Abstract

Abstract – The prolonged Covid-19 pandemic forces each individual to minimize physical contact with other individuals to reduce its spread. The impact created by this restriction is the paralysis of all operational activities from all fields, especially education. All learning activities and academic services cannot be done face to face. To maintain their existence and total paralysis, all institutions have begun to switch their operational systems from offline to online. In tertiary institutions, especially at the State Islamic University of North Sumatra, Medan, learning is transferred using e-learning. However, the academic service system is done manually via chat and email applications. The use of chat and email communication applications in carrying out academic service operations is deemed quite helpful. The obstacle experienced by using these applications is the validation of documents sent by students to the academic or study program. The potential for document forgery using these applications is considered very vulnerable. To minimize document falsification, a system was created that could issue a QR-Code and embedded it into a digital document, where the QR-Code could be verified to determine the validity of the digital document. QR-Code issuance is done using a web-based application using the Codeigniter framework. By using a QR-Code-based validation system, it is hoped that the potential for document forgery can be minimized.Keywords – QR-Code, Authenticity of digital documents, Codeigniter Abstrak­ – Pandemi Covid-19 yang berkepanjangan memaksa setiap individu untuk meminimalisir kontak fisik dengan individu lainnya untuk mengurangi penyebarannya. Dampak yang dimunculkan oleh pembatasan ini adalah lumpuhnya seluruh kegiatan operasional dari seluruh bidang, terutama Pendidikan. Seluruh kegiatan pembelajaran dan pelayanan akademik tidak dapat dilakukan dengan bertatap muka. Untuk menjaga eksistensi dan kelumpuhan total, seluruh lembaga mulai beralih sistem operasionalnya dari offline menjadi online. Pada Perguruan Tinggi khususnya di Universitas Islam Negeri Sumatera Utara Medan, pembelajaran dialihkan dengan menggunakan elearning. Namun untuk sistem pelayanan akademis dilakukan secara manual melalui aplikasi chat dan email. Penggunaan aplikasi-aplikasi komunikasi chat dan email dalam melaksanakan operasional pelayanan akademik dirasa cukup membantu. Kendala yang dialami dengan menggunakan aplikasi-aplikasi tersebut adalah validasi keabsahan dokumen yang dikirimkan mahasiswa ke bagian akademik ataupun prodi. Potensi pemalsuan dokumen dengan menggunakan aplikasi-aplikasi tersebut, dirasa sangat rentan. Untuk meminimalisir pemalsuan dokumen, dibuatlah suatu sistem yang dapat menerbitkan QR-Code dan ditanamkan kedalam dokumen digital, dimana QR-Code tersebut dapat di verifikasi untuk mengetahui keabsahan dokumen digital tersebut. Penerbitan QR-Code dilakukan dengan menggunakan aplikasi berbasis web dengan menggunakn framework codeigniter. Dengan menggunakan sistem validasi berbasis QR-Code ini diharapkan potensi-potensi pemalsuan dokumen dapat diminimalisir.Kata kunci – QR-Code, Keaslian Dokumen Digital, Codeigniter
Co-Authors Abdul Halim Hasugian Agung Firmansyah Agung Firmansyah Ahmad Fauza Anshori Tbn Ahmad Fauzi Ahmad Taufik Al Afkari Siahaan Aidil Halim Aidil Halim Lubis Aidil Halim Lubis Aidil Halim Lubis Alfan Ramadhan Alwy Azyari Harahap Amelia, Dara Andre Gusli Agus Riadi Armansyah Armansyah Armansyah Armansyah Armansyah Armansyah Asnawi, Azi Ayna Salsabillah Azhari, Fajar Bahari, Mhd Raja Doly Bayhaqi, Abdullah Bisri, Cholil Br Rambe, Indri Gusmita Catur Hidayatullah Dandi, Muhammad Khairil Dasopang, Buyung Satrio Dwisyahputra, Achmad Adbillah Eva Darwisah Harahap Fahrul Afandi Fakhriyah, Mardhiyah Fakhrizal, Fiqri Fatwa, Nursalimah Isnaina Fikri Aulia Habibie, Alief Fathul Haliem, Alexander Hanafi, Muhammad Rizky Harahap, Nita Maharani Harahap, Rina Syafiddini Harahap, Shopiah Henni Melisa HP, Kiki Iranda Hsb, Khoiri Sutan Ibsan, Muhammad Hanafi Ilham Rizki Ananda Ilka Zufria Imam Zaki Husein Nst Indah Meilina Ivan Prayuda Julianti, Miranda Jusli, Dara Taqa Assajidah Kesuma Dwi Ningtyas Khairin Nadia Khairunissabina, Khairunissabina Khoiriah, Miftahul Lubis, Fahrian Zibran Lubis, Farhan Rusdy Asyhary M. Teguh wijaya Mey Hendra Putra Sirait Mhd Furqan Mhd Furqan Mhd. Furqan Furqan Mhd.Furqan Muhammad Abi Muzaki Muhammad Fadiga Muhammad Fahri, Muhammad Muhammad Ikhsan Muhammad Siddik Hasibuan Muhammad Sunni Arrafiq Nasution, Fitri Handayani Nasution, Raihan Hafiz Noor Azizah Novita Jambak, Indah Nurjanah, Trya Nurwana Nazla Saragih Padang, Bermiko Kasah Pii Syahputra Prayoga, Dio Putri Hanifah Putri, Raissa Ramanda Qasthari, Mohd. Wildan Rafif Aprizki Saragih Rafli Bima Sakti Ramadhan, Rio Fadli Ramadhan, Rizky Syahrul Ratna Dewi, Sri Reza Muhammad Rifansyah, Mhd. Roji Rifqi Alwanu Akmal Rina Filia Sari Rini Halila Nasution Rizki Ananda Putra Fajar Rizky Pratama Putra Rudi Riyandi Sandira, Sri Delwis Saragih, Khoirul Azmi Sari, Desliana Silva Ukhti Filla Silvi Joya Arditna Br Bukit Sinaga, Imam Adlin Siti Afifah Siregar Siti Ayu Hadisa Siti Nurul Aini, Siti Nurul Siti Sarah Harahap Siti Sumita Harahap Sri Marwah Badrin Sriani Sriani Sriani Sriani Stephani Silalahi Suhardi Suhardi Suhardi Suhardi Suhardi Syahira, Melani Alka Syahputra, Zidhane Syarifudin, Zaini Triase Triase Triase Triase, Triase Wahyu Kurniawan Wini Istya Sari Lubis Yahya, Arfigo YENI SAFITRI Yudha, Muhammad Yudha Pratama Zahron, Almeranda Haryaveda Nurul