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All Journal Informatik : Jurnal Ilmu Komputer International Journal of Computer and Information System (IJCIS) Jurnal Abdi Masyarakat Indonesia PENA ABDIMAS : Jurnal Pengabdian Masyarakat Bulletin of Network Engineer and Informatics (BUFNETS) International Journal of Applied Research and Sustainable Sciences (IJARSS) ABDIKOM Jurnal Ilmiah Sistem Informasi
Pawan, Elvis
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Library & Information Science Nursing Public Health Social Sciences Other

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Implementation of the Simple Additive Weighting Method to Select Tourist Attractions in Jayapura City Reski; Pawan, Elvis; Hasan, Patmawati
International Journal of Applied Research and Sustainable Sciences Vol. 2 No. 3 (2024): March 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijarss.v2i3.1545

Abstract

The study explores the implementation of the Simple Additive Weighting (SAW) method for the selection of the best tourist attractions in Jayapura City. The SAW method is used to calculate the tourist attraction rating based on the criteria that have been established. The study aims to provide recommendations for the best tourist attractions for travelers visiting Jayapura City. Data on various tourist attractions and relevant criteria are collected, then analyzed using the SAW method. The results of research show that the SAW method can be effectively used in selecting the best tourist attraction, helping tourists make better and more satisfactory decisions. Target the test results of the system to the test accuracy level based on a 100% blackbox method, which means the system can be implemented
Implementation of a Forward Chaining Method for Lupus Detection in RSUD Jayapura City Nurul Aprilianti, Ratih; Pawan, Elvis; Irjanto, Nourman S.
International Journal of Applied Research and Sustainable Sciences Vol. 2 No. 4 (2024): April 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijarss.v2i4.1629

Abstract

Implementation of expert system for lupus disease detection at RSUD Jayapura City achieved 100% in functionality testing of 8 forms, showing a high degree of accuracy. The benefits include ease of diagnosis for medical officers and access to information for the public. Integration with Android platforms and forward chaining methods improves diagnostic accuracy, expands use, and increases effectiveness in early identification of lupus disease. This success demonstrates the enormous potential of technology in improving health care and the quality of life of the people.
Expert System for Stunting Diagnosis in Children Using Certainty Factor Method Laku, Veren Verin Valery; Hasan, Patmawati; Pawan, Elvis
International Journal of Applied Research and Sustainable Sciences Vol. 2 No. 5 (2024): May 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijarss.v2i5.1860

Abstract

The development of information technology has affected many aspects of life, including health and education. In Puskesmas Kotaraja, Jayapura, Indonesia, the diagnosis of stunting disease has become a major focus. With the rise in stunting cases following the COVID-19 pandemic, efficient solutions are needed. Specialized systems with certainty factor methods offer accurate and efficient alternatives. This research builds a specialist system to detect stunts in children based on their experience and beliefs. Through previous system testing and problem analysis, this method has proven to be effective in providing accurate diagnostic solutions with a 98.74 degree of confidence. It is expected that this system will help improve the quality of health care in the puskesmas and reduce the cost of patient consultation
Improving Classical Playfair Cipher Security Using Genetic Algorithm-Based Key Optimization Pawan, Elvis; Elefri Neno, Friden; Yuliana, Yuliana; Dwi Febriana, Putri; Da Awendu, Damianus
Bulletin of Network Engineer and Informatics Vol. 4 No. 1 (2026): BUFNETS (Bulletin of Network Engineer and Informatics) April - September 2026
Publisher : PT. GWEX NET PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59688/s1567c81

Abstract

Even though the need for data security is growing, the standard Playfair Cipher algorithm can still be broken by frequency analysis. This is why this study was done. Ciphertext patterns that are easy to guess are a big problem because they make things less safe. This is especially true for the Playfair Cipher, which can be broken into by frequency analysis if it isn't properly protected. To make things safer, it is important to use stronger encryption methods and update the key management process on a regular basis. As part of designing the algorithm, building the system, and testing how well the cryptosystem works, you need to change the structure of the matrix and shuffle the keys on the fly. The test showed that the time it took to encrypt went up from 12.0 milliseconds to 14.2 milliseconds (+2.2 milliseconds or +18.33%), but the accuracy of the decryption stayed at 100%. The random index value also rose from 0.03636 to 0.06061. This means that the ciphertext is getting more random. The results show that making changes to the Playfair Cipher can make it a lot safer while still keeping it fast enough
Co-Authors Banne, Feronika Tudang Budiman, Eren Arif Da Awendu, Damianus Dwi Febriana, Putri Elieser Kulimbang Graciano Aristides Maturbongs Ika Fitrianita Jonathan k. Wororomi Juniarto Mende Laku, Veren Verin Valery Lumabiang, Junyor Eqwila Eglon Mingsep Rante Sampebua MOU, Oktovianus Nanang, Nanang Feberianto Neno, Friden Elefri Nikijuluw, Enjel sonia Murib Nourman Satya Irjanto Nurul Aprilianti, Ratih Paramban, Omar Pikindu, Fransina Pustap, El Shaddai Sandhy Remuz MB Kmurawak Reski Saway, Helena Soepriyanto, Budi Tatuhey, Emy Lenora Wijayanti, Yuligusmi Yohana Krisostoma Anduk Mbulang Yuliana Yuliana