JUKI - Jurnal Komputer dan Informatika
Not a member yet
94 research outputs found
Sort by
Sistem Pendukung Keputusan Pembagian Kelas Unggulan Siswa Baru Menggunakan Metode Promethee Pada STM Raksana Medan
Get PDFEducation has a very decisive role, not only for the development and manifestation of individuals but also for the development of a nation and a state. The progress of a culture depends on how that culture recognizes, appreciates, and uses its human resources. This is closely related to the quality of education provided to members of the community. The word decision means choice, namely the choice of two or more possibilities. Decision making is hardly a choice between right and wrong but what often happens is a choice between "almost right" and "maybe wrong". Decision making in an organization is the result of a continuous process of communication and participation from the entire organization. The results of these decisions can be statements that are agreed between alternatives or between procedures to achieve certain goals. However, to be able to determine the best decision, there are several methods that can be used to build a decision support system, one of which is Promethee. The promethee method is included in the Multi Criteria Decision Making (MCDM) group solving or multiple criteria decision making which is a discipline that is very important in making decisions on a problem that has more than one criterion (multicriteria)
Data Mining Algoritma C4.5 menentukan Kelayakan Penerima Bantuan Covid 19
Get PDFDampak dari Pandemi COVID 19 dapat dilihat dari terpuruknya ekonomi masyarakat, khususnya pada masyarakat nagori Sitalasai tempat dilakukannya penelitian ini. Data dari Dinas Kelurahan menjelaskan bahwa hampir seluruh masyarakat merasakan sulitnya menjalankan roda perekonomian. Dalam mengatasi permasalahan ini pemerintah membuat program pemberian bantuan khusus bagi masyarakat yang layak. Untuk menentukan kelayakan penerimaan bantuan Covid 19 ini dibutuhkan model atau aturan agar tepat pada sasaran. Saat ini pihak kelurahan hanya memiliki data yang bersumber dari Dinas Sosial dan tidak semua masyarakat masuk kedalam daftar tersebut sehingga banyak masyarakat yang seharusnya layak menerima bantuan tidak masuk kedalam daftar penerima bantuan. Data mining dengan algoritma C4.5 merupakan salah satu metode didalam ilmu komputer untuk memecahkan permasalahan klasifikasi. Dengan algoritma C4.5 variabel untuk mengukur faktor-faktor kelayakan penerima bantuan ini dikorelasikan untuk menghasilkan aturan. Hasil yang akan dicapai pada penelitian ini adalah aturan pohon keputusan kelayakan penerima bantuan Covid 19. Dengan metode pemecahan permasalahan ini menggunakan data mining algoritma C4.5 dapat mengklasifikasikan kelayakan penerima bantuan Covid19 sehingga data yang diolah valid dan tepat sasara
Penentuan Kelas menggunakan Metode K-Means berdasarkan Nilai IQ Siswa di Bimbel Mora College Pematangsiantar
Get PDFIntelligence Quotient (IQ) merupakan suatu bentuk penaksiran kemampuan kognitif seseorang. Selama ini penentuan kelas siswa di Bimbel Mora College Pematangsiantar masih mengikuti jurusan apa yang mereka ambil, tanpa melihat kecerdasan nilai IQ siswa. Penentuan kelas siswa berdasarkan nilai kecerdasan IQ siswa penting dilakukan untuk mempermudah tim pengajar untuk menyampaikan materi pelajaran yang akan di ajarkan, serta siswa juga dapat menerima pelajaran dengan metode yang tepat dan efektif. Dengan demikian, tim pengajar dapat menentukan metode dan cara penyampaian materi pelajaran sesuai dengan kelas kecerdasan IQ siswa. Metode yang digunakan adalah metode K-Means Clustering. Dari hasil pengelompokan di dapat 3 cluster, yang memiliki nilai IQ tinggi ialah kelas A, yang memiliki nilai IQ sedang ialah kelas B dan yang memiliki nilai IQ rendah ialah kelas C
Rancang Bangun Aplikasi Manajemen Peralatan Pada Jurusan Pendidikan Teknik Elektro Berbasis Desktop
Get PDFThe Department of Electrical Engineering Education is one of the majors at Universitas Negeri Medan. Universitas Negeri Medan has many tools to support its activities. At present, the Department of Electrical Engineering Education has an internal information system to control its equipment. The absence of equipment management applications will certainly experience difficulties in tracking down data tools. Solutions to overcome existing problems, of course, require equipment management information systems that can run equipment management to be more efficient and structured, and facilitate data collection tools. the method used in developing the system is a waterfall. This model consists of requirements analysis, system and software design, system and unit implementation, system testing, operation, and maintenance. With the application of equipment management, it will provide convenience in managing tool management in the Department of Electrical Engineering Education
Penerapan Algoritma CAST-128 pada Proses Enkripsi dan Dekripsi Teks
Get PDFEncoding was first made using a classic algorithm. This algorithm builds its security on the confidentiality of the algorithm used. However, this algorithm is inefficient when used to communicate with many people because the algorithm is still very simple and still very easy to solve, so important information or data that you want to keep secret can be easily discovered by other people or people who are not responsible. CAST-128 is a cryptographic algorithm that is said to be similar to the DES algorithm which uses 16 rounds of feistel network as one of its strengths. Where in the process of encryption and decryption of text CAST-128 uses a 64-bit block length and key lengths of up to 128 bits. For information, the CAST-128 algorithm is referred to as one of the strong cryptographic algorithms against various types of cryptanalysis, including differential and linear attacks. With the application of the CAST-128 algorithm in the process of encrypting and decrypting text, it will be more difficult to decode text encoded by people who do not know the key so as to create more security than the encoded text. So when the text wants to be sent or transferred to the flashdisk will be more confidential
Mendeteksi Tepi Citra Penyakit Hemokromatosis Dengan Menggunakan Metode Log (Laplacian Of Gaussian)
Get PDFHemochromatosis is a genetic or hereditary disease. Abnormalities of iron metabolism characterized by excessive deposition of iron in the tissues. Derivative conditions that cause the body to absorb too much iron from the food eaten. Excess iron is stored in organs such as the liver, heart and pancreas. Excess iron can cause toxicity to these organs, and is life threatening because it can cause diseases such as cancer, cardiac arrhythmias, and cirrhosis. LOG method (Laplacian of Gaussian) is a second-order edge detection operator or has a derivative filter whose function can detect areas that have rapid changes (rapit change) such as edges (edges) in the image. But this laplacian is very sensitive or low to the presence of noise. For that, the image will be smoothed first by using Gaussian. Thus a new derivative function is known, namely LoG or Laplacian of Gaussian. Many methods are used in solving edge detection problems, including Prewitt Operators, Sobel Operators, Canny Operators, but among all these methods, the Laplacian of Gaussian method is the method most often used in detecting edges. For this reason, it is hoped that the LoG (Laplacian of Gaussian) method can help to detect hemochromatosis. Can help how severe the disease has developed, and what symptoms can later be caused, so that it can help in the healing process
Identifikasi Kesegaran Ikan Nila menggunakan Teknik Citra Digital
Get PDFFish contain many nutrients that are very beneficial for the body, but often fish are traded in a state of death as well as being alive. To observe the freshness of tilapia is done by the introduction of color changes that appear on digital images using the least squares method. The purpose of this research is to build an image management application system to detect the freshness of tilapia. The data used are 10 samples of tilapia images which are photographed every 1 hour for 15 hours and obtained 150 image data and then processed and analyzed using the least squares method. The first process begins with image processing by cropping at the edge of the eye of the original image and then proceed with resizing to 1000 x 1000 pixels and changing the image format to *. Png. After the image has been processed then the average value is calculated rata grayscale uses the 'rata_rata Gambar' application system and an equation is stored which is stored as training data on the application system. After the image has been processed then the image is input into the system, the image will be converted into grayscale form and displayed at a predetermined place together with the rgb and grayscale histograms and then calculated using the least squares method. The last process we do is matching the test image with the image stored as training data and we conclude whether the image is (very fresh, fresh, fresh enough, not fresh, or very not fresh), the percentage of freshness of the anchor fish, and the length of time the anchor fish dies. This study used 150 samples of fish images from fresh fish that were still very fresh until the fish were not very fresh (rotten)
Pengembangan Media Pembelajaran Statistika Berbasis Multimedia
Get PDFIn this era of rapid technological development, the use of technology in various aspects is greatly enhanced. It is also inseparable in the world of education which must adapt itself to technology and bridge the technology and education world by implementing technology-based systems. Among them can be applied using multimedia-based learning media. The role of instructional media in the teaching and learning process is very important to be carried out by educators today, because the role of instructional media can be used to channel the sender's message to the recipient and through learning media and can also help students to explain something conveyed by the educator. Therefore, educators must be able to present good learning media for students in the current era
Perancangan Aplikasi Penyandian Pesan Teks dengan Menggunakan Algoritma Digraph Cipher
Get PDFHumans interact with fellow humans using communication. Not everything that is communicated contains a message so that it can be known by many people, sometimes the communication is confidential so that only certain people can know it. The occurrence of data tapping submitted is certainly a problem if the data is confidential, therefore a data security system is needed so that the data cannot be stolen or changed by tappers or crackers. One solution to secure data is to use cryptography. Cryptography is the science and art of maintaining message security when messages are sent from one media to another without experiencing interference from third parties. Through cryptographic techniques, data can be changed into passwords that are not understood and return them back to the original, this process is called data encryption and decryption. This data security process uses the Digraph Cipher method. Some facilities in the Digraph Cipher method are the keys used in the encryption and decryption process are the same (symmetrical) and the decryption process is the opposite of the encryption process
Aplikasi Penyandian Record Menggunakan Metode Twofish
Get PDFTechnological developments are increasingly progressing, for example for data security. Data security is very important in maintaining the confidentiality of information, especially sensitive information, which only authorized parties can know, moreover data storage is done on a computer, if the data is not secured in advance then the data will be known by the parties who are entitled to it. is not entitled to the security of data on the record, the data on the computer is not easily seen and cannot be changed by irresponsible parties so that the data will be safe and cannot be contested by any party One of the data safeguards is by using a cryptographic system, which is the encryption of the contents of the information (plaintext) into incomprehensible content through an encryption process (encoding) and to retrieve the original information, a description process (deschiper) is carried out accompanied by using the correct key. Data encryption or cryptography is the study of hiding letters or writings so that they cannot be read by unauthorized people. Cryptography has been used since the time of Julius Caesar, who sent messages to the commander but did not have a courier to carry the message. Cryptography has 2 (two) important parts, namely encryption and description. Encryption is the process of encrypting the original message into a message that cannot be interpreted as the original. Description is to change a message that has been interpreted to be the original message, usually called plaintext, while the message that has been interpreted is called ciphertext