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Contact Name
HENGKI TAMANDO SIHOTANG
Contact Email
hengki_tamando@yahoo.com
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editor.mantik@iocscience.org
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Perumahan Romeby Lestari Blok C, No C14 Deliserdang, Sumatera Utara, Indonesia
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INDONESIA
Jurnal Mantik
ISSN : -     EISSN : 26854236     DOI : -
Jurnal Mantik (Manajemen, Teknologi Informatika dan Komunikasi) is a scientific journal in information systems/informati containing the scientific literature on studies of pure and applied research in information systems/information technology,Comptuer Science and management science and public review of the development of theory, method and applied sciences related to the subject. Jurnal Mantik Penusa is published by Institute of Computer Science (IOCS). Editors invite researchers, practitioners, and students to write scientific developments in fields related to information systems/information technology,Comptuer Science and management science). Jurnal Mantik is issued 4 (FOUR) times a year.
Arjuna Subject : -
Articles 2,151 Documents
Comparison of Weighted Product Method and Simple Additive Weighting in Scholarship Recipient Selection: Comparison of Weighted Product Method and Simple Additive Weighting in Scholarship Recipient Selection Oktaviani Oktaviani; Agung Triayudi; Ira Diana Solihati
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

SMA Dharma Karya as educational institutions annually held the scholarships are given to students based on criteria set by the school. However, in selecting the scholarship still use manual feared scholarships target. So the decision support system built in selecting scholarship learners using weighted product. In this study, using the method of weighted product and simple additive weighting as a comparison. From the results of research on the best methods of weighted product that is on the alternative perengkingan 14 with a total value of 0.0067401308233662 and the best perengkingan SAW method is also on the alternative 14 with a total value of 0.82. The results of a comparison test on the data obtained 263 product value weighted accuracy of 83.03% and a simple additive weighting of 60.45%. Results have the system usability percentage of 85.6% and has been tested BlackBox Addressing that the system can perform properly selecting scholarship recipients.
Analysis of Student Active Learning in Moodle LMS Using the SERVQUAL Method: Analysis of Student Active Learning in Moodle LMS Using the SERVQUAL Method Haidar Ali; Ucuk Darusalam; Agus Iskandar
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Growth in the use of technology in education in Indonesia is increasing every year. Various universities in Indonesia already have e-learning systems based on LMS moodle. In the e-learning system, teachers and students generally do not meet face to face, so it is difficult to know how enthusiasm and response of students to the subject matter they receive and the success of the teaching and learning system itself. The purpose of this study is to design a system that can analyze the level of student activity. This system was created using PHP and mySQL programming languages as a database and data analysis with the SERVQUAL method. Based on the results of research analysis of learning by using the best ranking servqual method, namely students named Vony Oktavia (193112700650077) with the highest weighting value of 1.57143 out of 30 students.
Application Of Expert System To Diagnose Pests And Diseases In Coffee Plant Using Web-Based Naïve Bayes: Application Of Expert System To Diagnose Pests And Diseases In Coffee Plant Using Web-Based Naïve Bayes Rafi Syahputra; Agung Triayudi; Ira Diana Sholihati
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Every year the demand for coffee in Indonesia is increasing, this is because coffee is a plantation that has long been cultivated and is one of the livelihoods of the people in Indonesia. Moreover, the high level of exports makes coffee plants very influential for the country's economy and foreign exchange. Besides the many needs, the spread of pests and diseases in coffee plants is one of the problems that must be addressed immediately. Based on the existing problems, the author finally designed an expert system created to diagnose coffee plant diseases using The Naïve Bayes method, which is one of the simple classification methods which in return can give a probability value for each disease that is raised. This system can help coffee planters to identify diseases in coffee plants. The test results in this study were able to produce an accuracy level of 92% so that this system can be used to diagnose pests and diseases in coffee plants.
Expert System Testing To Recommend Diabetes Mellitus Using Web-Based Certainty Factor Method: Expert System Testing To Recommend Diabetes Mellitus Using Web-Based Certainty Factor Method Muhammad Raditya; Fauziah Fauziah; Endah Tri Winarsih
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Diabetes mellitus is a chronic autonim disease caused by interruption of blood sugar regulation, or commonly referred to as diabetes or diabetes. If the disease is not treated with proper care, it can cause dangerous complications, can even threaten the lives of sufferers. Implementation of expert system for diagnosing diabetes mellitus using a web-based certainty factor aims to explore the symptoms displayed in the form of questions - questions that can diagnose different types of diabetes mellitus. Results from this study is a web-based expert system that can detect whether a person's disease or diabetes mellitus. Based on the manual calculation, showed the highest value of 0.
Implementation of Expert System for Early Detection of Breast Cancer With Web-Based Methods Chaining Forward: Implementation of Expert System for Early Detection of Breast Cancer With Web-Based Methods Chaining Forward Diana Caniago; Septi Andryana; Aris Gunaryati
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Breast cancer will be easier to overcome if it is known as early as possible to the importance of self-awareness to perform a routine inspection of BSE. The study presented aims to design a web-based application in the health field in the early detection of breast cancer. Penelian expert system method on this is to use forward chaining to represents the rule and reasoning into a coherent system based on physical symptoms entered. In this system also gets a percentage probability of 72.7%, so it can be quite good. In addition the system can produce two outputs in the form of possibility, the output is both benign and malignant.
Expert System of Diagnosis of Human Dental Diseases Using The Naïve Bayes Method: Expert System of Diagnosis of Human Dental Diseases Using The Naïve Bayes Method Henry Prasetyo Utomo; Iskandar Fitri; Winarsih Winarsih
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Teeth are important in the process of breaking down food, but many people do not pay attention to dental health. Unfortunately, most people especially in Indonesia are unconscious and don't really care about the dental health they experience. The main factor is the pattern of consumption of sweet foods and the high cost of consultation with the dentist. Therefore an expert system is needed which is expected to be a solution to diagnose dental disease. The present study applies the Naïve Bayes method because it is based on looking at the probabilities that exist in dental disease data through several perceived symptoms. The diagnosis process is carried out by inputting symptoms of the disease then the probability value of each class is calculated then the final result is the disease class that has the highest probability. The test results in this study involved testing data that were able to produce an accuracy of 93% so that the system could be applied to dental disease
Augmented Reality Media As A Butterfly Metamorphosis Learning Method Based Marker Tracking: Augmented Reality Media As A Butterfly Metamorphosis Learning Method Based Marker Tracking Muhammad Prabowo Chaniago; Agung Triayudi; Endah Tri Esthi
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This study specifically the butterfly metamorphosis of learning can be done with various media for users of grades 4 through 5 elementary schools and must be attenuated by the instructor in the learning process. This study uses a marker-based search method to help study the butterfly metamorphosis in 3D on a smartphone registered devices. Augmented Reality Also has a Rapid Angle Detection algorithm to support a marker object in it. In the results and application testing colors are not suitable for the visualization process while it is still a perspective that can be processed by the Angle Rapid Detection algorithm and 0-20% in light testing can not be used 21-40% of long Appears 41- 100% faster Appearsr,
Expert System of Early Detection of Arthritis with Web-Based Certainte Fector Method: Expert System of Early Detection of Arthritis with Web-Based Certainte Fector Method Muhamad Alfaiz; Iskandar Fitri; Novi Dian Nathasia
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Rheumatoid disease is one type of disease that attacks the joints in humans. Patients with this disease if it does not know the type of type of arthritis can cause paralysis. Expert systems in this study is expected to be one of the solutions for the early detection of arthritis in the joints of man. The method used is Certainty Factor, this method can cope with uncertainty in decision-making based on perceived symptoms that have been fed by the user. The purpose of this research is done by means of a comparison between the method of certainty factor with Dempster Shafer, so as to approach the best accuracy value. This expert system is created using the programming language PHP and MySQL database, Created by a web-based system which is expected to facilitate the user in getting information about Arthritis disease. The test results from this journal by comparing the certainty factor method with Dempster Shafer method. The result is the method of Dempster Shafer gain accuracy value of 96% of 50 test data, and the certainty factor method gain accuracy rate of 98% of 50 test data.
Modification of Two Algorithms Playfair And Caesar Chiper Al-gorithm Using Postal Code City: Modification of Two Algorithms Playfair And Caesar Chiper Al-gorithm Using Postal Code City Sewindu Putro; Sumbogo Wisnu Pamungkas; Dony Ariyus
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Privacy and data security is one of the most important aspects that need to be addressed, especially in this digital age where all desktop and mobile computing devices can be connected to one another in a virtual world that causes virtually impossible to protect the message to its destination. The purpose of this study is a modification of the Playfair cipher algorithm and caesar cipher with the postal code of the city, aims to produce a ciphertext that is more complex and not easily solved. In this penelian also implement LSB steganography method so that the message content more secure and not readily known by those who do not have an interest. From the test results of this study showed that by modifying the Playfair cipher algorithm and caesar cipher with city postal code in the encoding, produce ciphertext more complicated to be returned to the original message by parties who have no interest. Applying LSB steganography method makes the observer is not aware of the information that is pasted on the image that acts as a message.
Implementation Of Message Security In Pictures Using Playfair Chiper Algorithm: Implementation Of Message Security In Pictures Using Playfair Chiper Algorithm Muhamad Maksum Hidayat; Wahyu Nugroho; Dony Ariyus
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Cryptography implementations are now widely solved by cryptanalyst in the process of securing a messaging system, and therefore the need to add a method of steganography. Steganography is the art of hiding secret messages in any medium other than the sender and receiver that no one would know or realize there is a secret message in the media is sent. In this journal, conducted a study on the implementation of cryptography in the form of encryption and decryption of a message using the Playfair cipher algorithm is modified by letter hijaiyah. Then the implementation of steganography in a PNG image media, the testing process is done by sending the media image using email, whatsapp, facebook, and telegram. research aims to make the encryption process stronger and more secure,

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