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Journal of Computer Science and Informatics Engineering
Published by Ali Institute of Research and Publication
ISSN : -     EISSN : 28278356     DOI : -
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Computer Science & IT
Artificial Intelligence Machine Learning Natural Language Processing Computer Vision Text Speech Text Mining Data mining Cryptography Data visualization Expert System Deep Learning Fuzzy Logic IoT and smart environments Neural Networks Pattern Recognition Image Processing Optimization Digital Signal Processing Networking Technology Web intelligence
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol 4 No 4 (2025): October" : 10 Documents clear
Web-Based Recruitment System Design with K-NN Algorithm at PT Gunung Himun Peratama Ardiansyah, Alfian; Purnama, Giri
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1136

Abstract

With the increasing need for workers, the recruitment process has become a crucial aspect in supporting the operations of PT Gunung Himun Peratama. Currently, the selection process is still carried out manually, resulting in delays, inefficiencies, and the potential for human error. This study aims to develop a web-based decision support system by integrating the K-Nearest Neighbor (K-NN) algorithm to improve efficiency and accuracy in the employee selection process. The system development was carried out using the waterfall method, with PHP technology, the CodeIgniter framework, and the MySQL database. The K-NN algorithm is used to calculate the proximity between new applicant data and historical data based on a number of predetermined criteria. System evaluation was carried out through black-box testing and classification accuracy analysis. The results of the study showed that the system was able to classify applicants accurately and reduce the selection time from an average of three days to one day. In addition, the system provides objective acceptance recommendations based on processed historical data, thereby increasing efficiency, transparency, and accountability in the recruitment process. This system makes a real contribution to the development of decision support information systems in the field of human resources
Fardhu Kifayah Learning Media Application Using Android-Based Augmented Reality Baratih, Ira Iranda Isyha; Fakhriza, M.
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1141

Abstract

Advances in information technology and telecommunications have brought significant changes to the field of education. Technology-based learning media provides an effective solution for improving the quality of learning and student motivation. One of the emerging technologies is augmented reality (AR), which can create interactive and engaging learning experiences. Observations at the Amal Shaleh Islamic Junior High School revealed the need for more interactive, technology-based learning tools. The learning process still relies on conventional methods, such as explanations on the blackboard and textbooks, making it challenging for students to fully grasp the material. The researchers chose the topic "Management of Deceased Bodies" as the focus for developing learning media, given the importance of understanding the procedures for managing corpses according to Islamic law. In fiqh studies, the obligation to care for a corpse is considered a fardhu kifayah, meaning that if one person fulfills this duty, the responsibility is lifted from others. However, if no one performs the task, the entire community bears the sin. Thus, it is crucial for students to understand and apply the procedures correctly. This research employed the Markerless method, and the outcome was an interactive learning medium utilizing augmented reality. The goal of this innovation is to enhance students' understanding of the procedures for handling deceased bodies, enabling them to apply this knowledge within their communities
Design of a Web Tracer Study Application and Alumni Data Management at the Faculty of Sharia and Law Riansyah, Rusma; Syahputra, Alwi
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1145

Abstract

This research aims to design a web-based tracer study application and alumni data management system at the Faculty of Sharia and Law UINSU using the Waterfall method with a Model-View-Controller (MVC) approach. The system was developed using PHP 8.0, MySQL 8.0, HTML5, and CSS3 technologies. Functional testing shows 100% success on all features, usability evaluation using System Usability Scale (SUS) resulted in an average score of 82 (Excellent category), and performance testing shows login response time of 1.5 seconds with stability at 25 simultaneous users. User Acceptance Test shows 100% of users stated the system is easy to use. Implementation resulted in an alumni response rate of 78.6%, with 64.4% of alumni working in the legal sector and 75.4% stating that lecture competencies match work requirements. Innovative features include automatic email reminders, LinkedIn integration, dynamic visualization, and automatic password reset. The system has proven effective in improving the efficiency of alumni data collection from manual to digital and supporting data-based accreditation processes and curriculum evaluation
Design and Implementation of a Web-Based Digital Repository System in the Muamalah Study Program at UINSU Using the Waterfall Method Diah Putri Kartikasari; Farhan, Muhammad
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1158

Abstract

Repository is a digital storage system that can store various kinds of data such as files, documents, and research results, often a repository is called a digital library by many people. Repository is used in various places, one of which is higher education, which can store student research results such as papers, theses, journals, thesis, and dissertations. Muamalah repository is addressed to the Muamalah Study Program, Faculty of Sharia and Law, State Islamic University of North Sumatra which still uses a manual library system so that it can cause problems in the process of searching, storing and managing documents that require a long time. So a digital library or digital repository is the right solution to deal with these problems. The waterfall software development method is used in this research because the process is structured and more organized so that it can facilitate research. The use of UML (Unified Modeling Language) as a design model and PHP (Hypertext Prepocessor) as a programming language makes this research easier to implement. The results of this study can help the muamalah study program in managing various data such as theses, journals, thesis, and so on
Classification of Nutritional Status in Toddlers Based on Anthropometric Data Using Random Forest Imung, Mundirin; Idawati, Idawati; Latief, Ibrahim
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1175

Abstract

Stunting is a chronic nutritional problem that remains a major challenge in improving child health in Indonesia. This condition has long-term impacts on physical growth, cognitive development, and future productivity of children. Early detection of toddlers' nutritional status is crucial for effectively preventing and addressing stunting cases. This study aims to develop a machine learning-based classification model for toddlers' nutritional status using simple anthropometric data, namely age (in months), sex, and height (in cm). The dataset used in this study was sourced from the 2022 historical records of the Health Department and the Community-Based Nutrition Recording and Reporting System (E-PPGBM), comprising 120,999 entries categorized into four nutritional status classes: normal, tall, stunted, and severely stunted. Data preprocessing included label encoding and feature standardization. The model employed is the Random Forest Classifier, evaluated using accuracy, precision, recall, and F1-score metrics. The training results show that the model achieved a classification accuracy of 99.93% on the test data, with F1-scores for each class as follows: Normal = 0.9998, Severely Stunted = 0.9985, Stunted = 0.9975, Tall = 0.9997. Feature importance analysis indicates that height is the most influential feature in the classification task. These findings demonstrate that machine learning algorithms, particularly Random Forest, are effective for predicting toddlers’ nutritional status and have strong potential to be integrated into digital applications that support Indonesia’s stunting reduction programs. However, the model's limitation lies in its use of only basic anthropometric features—age, sex, and height—without considering additional variables such as weight, disease history, dietary patterns, socioeconomic status, or immunization history, which may also influence a child's nutritional status. To improve the model's accuracy and relevance, it is recommended to incorporate other related features, such as body weight, nutritional intake, health history, and social-economic indicators, in future research.
Determinant Factors of Revisit Intention to Museum: Integration of Technology Acceptance Model and Expectation Confirmation Theory Intan Istiqomah
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1202

Abstract

The development of digital technology is progressing very rapidly. Museums as cultural centers need to adopt digital technology to give different experiences for visitors. Museum Sonobudoyo also starts using digital technology. The technology used varies, from animated films, Virtual Reality (VR), to interactive screens. Visitors can enjoy these technologies and may revisit the museum if they are satisfied. This research tries to examine the factors that determine revisit intention of the visitors from the perspective of Technology Acceptance Model and Expectation Confirmation Theory. Data collection was carried out during period May – June 2024 by distributing questionnaires to museum visitors. A total of 160 valid questionnaires were collected and processed using Partial Least Square Structural Equation Modeling (PLS-SEM) with the help of SmartPLS 3.0 software. The results show that the factors which determine revisit intention are perceived usefulness, using digital technology, confirmation, and satisfaction. This research contributes to the existing knowledge in museum’s technology adoption and integration between TAM and ECT theories. Not only theoretical contribution, the result of this research also has practical contributions to the development of museum strategies. By knowing the factors that may influence visitors’ revisit intention, museums may consider these factors when planning to use other digital technologies.
Bandwidth Optimization of Mikrotik-Based School Wi-Fi Networks Using Queue Tree and QoS Rudiyanto, Randi; Asri, Sri Dianing
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1284

Abstract

The rapid development of technology in the era of the Fourth Industrial Revolution has driven humanity and various sectors to quickly adapt, including internet network infrastructure in educational institutions. The internet has become the backbone in supporting smooth administrative processes and learning activities. However, the high number of users often leads to a decline in connection quality, such as slow data access and increased delay. To address this issue, an appropriate bandwidth management method is required to ensure a more balanced and efficient distribution of connections.This study employs the MikroTik RB450Gx4 device with the Queue Tree method and Quality of Service (QoS) to proportionally distribute bandwidth. Testing was conducted by measuring network performance parameters, including throughput, latency, packet loss, and jitter, both before and after the implementation of the method.The results indicate an average throughput increase of 27%, a decrease in latency from 60 ms to 40 ms, a reduction in packet loss from 5% to below 1%, and more stable jitter maintained under 5 ms. These improvements demonstrate that implementing bandwidth management based on Queue Tree and QoS can significantly enhance connection quality. In conclusion this method can effectively support operational activities and learning processes within the school environment
Design and Development of a Web-Based Mosque Financial Management Information System Using the Incremental Method Amri, M Choirul; Anjani, Retno; Rasyid, Abdul; Pradana, Riski Ananta; Zufria, Ilka
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1212

Abstract

Nur Hidayah Mosque in Dusun III, Tuntungan I Village, Pancur Batu District, Deli Serdang Regency, faces challenges in financial management, which is still conducted manually using cash books and printed reports. This manual system leads to delays, recording errors, and difficulties in monitoring and evaluating finances. To improve efficiency, accuracy, and transparency, this study designs and develops a web-based financial management information system using the incremental development method. The system allows mosque administrators, particularly the admin and treasurer, to digitally record income and expenses, generate automatic financial reports, and store data in a structured and easily accessible format. Features such as automatic recap and digital archiving further support transparency and accountability. The implementation of this system is expected to significantly enhance the performance of mosque financial management by providing faster and more organized data access while minimizing manual recording errors. This system contributes to the modernization of mosque financial administration and can serve as a reference for similar future research
Motorcycle Security System Using Fingerprint Authentication Based on the Internet of Things (IoT) Sutrisno, Sutrisno; Samsumar, Lalu Delsi; Efendi, Muhamad Masjun
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1259

Abstract

The increasing cases of motorcycle theft in Indonesia reveal the weaknesses of conventional security systems, such as mechanical locks that are easily compromised. This condition creates a scientific gap for developing security solutions based on biometric technology and the Internet of Things (IoT). This study proposes the design of a motorcycle security system with fingerprint authentication integrated with IoT. The research method used is prototyping, which includes requirement analysis, system design, prototype development, and testing. The system is built using an ESP32 as the main controller, an AS608 fingerprint sensor for user identification, a 2-channel relay for electrical control, a solenoid lock as the physical locking mechanism, and the Blynk application for remote control via the internet, which also serves as an alternative to the fingerprint sensor in case of errors or failures. The test results demonstrate that the system can accurately recognize registered fingerprints, activate the motorcycle’s electrical system, and automatically lock and unlock the solenoid with a fast response. The Blynk application functioned effectively as both a real-time control medium and an alternative control button when the fingerprint sensor experienced errors. These findings indicate that the proposed system can enhance motorcycle security compared to conventional methods while also providing ease of access for users. However, this research is still limited to the laboratory prototype stage and has not yet been directly implemented on motorcycles under real-world conditions.
IoT-Based Smart Parking: Slot Detection and Vehicle Navigation in Parking Buildings Sapitri, Nurul; Samsumar, Lalu Delsi; Subki, Ahmad
Journal of Computer Science and Informatics Engineering Vol 4 No 4 (2025): October
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/cosie.v4i4.1262

Abstract

Problems in conventional parking systems are still frequently encountered, such as difficulties in finding vacant slots and the lack of real-time information for drivers. This study aims to develop an IoT-based Smart Parking system capable of detecting parking slot availability and providing automatic voice navigation for drivers within parking buildings. The research method employed is prototyping, consisting of requirement analysis, system design, prototype development, and testing stages. The system utilizes ESP32 as the main microcontroller, infrared and ultrasonic sensors for vehicle detection, and a DFPlayer Mini module for voice navigation. Parking information is displayed in real-time on an LCD screen and the Blynk application via a WiFi connection. The test results show that the system achieved an average response time of 1.57 seconds, an accuracy rate of 94.7%, and stable performance under various test conditions. The components used are cost-effective, with an estimated prototype cost of Rp600,000–Rp1,000,000 per unit, making it feasible for real implementation in parking buildings. The system has proven to be responsive, efficient, and practical, and can serve as an innovative solution for modern parking management based on IoT technology and smart navigation

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