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Algorithm-Sensitive Feature Weighting using Mutual Information and ReliefF for Heart Disease Classification Prihantono, Dwi; Faqih, Umar; Indra, Indra
Jurnal Pendidikan Informatika (EDUMATIC) Vol 10 No 1 (2026): Edumatic: Jurnal Pendidikan Informatika
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/edumatic.v10i1.34262

Abstract

Heart disease remains a critical global health issue requiring reliable early prediction for clinical decision-making. This study evaluates the effect of feature selection and feature weighting on the performance of machine learning models with different learning mechanisms, namely K-Nearest Neighbors (KNN), Naïve Bayes (NB), and Logistic Regression (LR), for heart disease prediction. An algorithm-sensitive comparative framework was applied using global feature relevance estimation (Mutual Information), local feature relevance estimation (ReliefF), feature selection, and feature weighting, with raw features as baseline. Experiments were conducted on the Cleveland Heart Disease dataset using stratified 5-fold cross-validation. The results show that ReliefF-based feature weighting achieves the best performance for Naïve Bayes (accuracy = 0.8085; F1-score = 0.7774), while Logistic Regression attains the highest overall performance under the baseline (accuracy = 0.8547; F1-score = 0.8324). Feature selection improves KNN performance due to reduced sensitivity to irrelevant features. These findings indicate that the effectiveness of feature importance strategies depends on model-specific learning behavior, where feature weighting benefits probabilistic models, while feature selection is more effective for distance-based models. This study contributes an algorithm-sensitive evaluation perspective for aligning feature importance strategies with machine learning model characteristics to improve heart disease prediction performance.
Business Information System for Workshop Using Rapid Application Development Method Adrianto, Ananda Andra; Kurniawati, Ana; Jauhari, Amrin Fakhruddin
JITTER: Jurnal Ilmiah Teknologi dan Komputer Vol. 7 No. 1 (2026): JITTER, Vol.7, No.1, April 2026
Publisher : Program Studi Teknologi Informasi, Fakultas Teknik, Universitas Udayana

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Abstract

The development of information technology is driving digitalization in various sectors, including the repair shop industry. Digitalization can improve efficiency, record-keeping accuracy, and service speed. However, many small to medium-sized repair shops still use manual systems, such as the Betawi Motor Service (BMS) workshop in Jatiasih, which records transactions, stock, and financial reports separately using Microsoft Excel. This method causes problems such as input errors, data duplication, difficulty monitoring stock in real time, and inaccurate financial reports. To overcome these obstacles, this study aims to design and build a website-based business information system using the Rapid Application Development (RAD) method. The RAD method was chosen because it supports rapid and iterative development through the stages of requirements planning, design, development, and implementation. The system has three types of users: admin, manager, and employee, with different access rights. The results of Black Box Testing and User Acceptance Testing indicate that all features function well. This system can be accessed through https://bengkelbms.zya.me and helps digitize the BMS Workshop's operations.
Evaluation of the Information Security Level at the Department of Communication and Informatics of Tabanan Regency Using ISO/IEC 27001:2022 Arinata, Gede Ade Rangga; Susila, Anak Agung Ngurah Hary; Pasirulloh, Muhammad Alam
JITTER: Jurnal Ilmiah Teknologi dan Komputer Vol. 7 No. 1 (2026): JITTER, Vol.7, No.1, April 2026
Publisher : Program Studi Teknologi Informasi, Fakultas Teknik, Universitas Udayana

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Abstract

Information security is a crucial aspect in maintaining the confidentiality, integrity, and availability of data, particularly within government environments that manage digital-based public services. The Tabanan Regency Communication and Informatics Office plays a strategic role in managing information systems and providing public information services, thus requiring the implementation of a standardized and measurable information security management system. This study aims to evaluate the level of implementation of the Information Security Management System (ISMS) at the Tabanan Regency Communication and Informatics Office based on the ISO/IEC 27001:2022 standard and to formulate improvement recommendations by referring to the control guidelines in ISO/IEC 27002:2022. The research methods employed include observation, interviews, and document analysis to identify the conformity between the existing information security conditions and the 93 security controls listed in Annex A of ISO/IEC 27001:2022. The evaluation process was conducted using a gap analysis approach to determine the level of compliance and identify gaps in the implementation of information security controls. The results indicate that the overall level of information security implementation falls within the sufficient category; however, several controls have not yet been optimally implemented. The controls requiring further attention include information authentication, access rights management, and the readiness of information and communication technology to support business continuity. Based on these findings, this study proposes technical recommendations, including the implementation of multi-factor authentication, the development and strengthening of information security policies, the enhancement of information and communication technology infrastructure, and the conduct of regular information security awareness training. These recommendations are expected to serve as a reference for the Tabanan Regency Communication and Informatics Office in improving the effectiveness of ISMS implementation in accordance with international standards.
LEGAL ANALYSIS OF CRIMINAL ACTS BY PERPETRATORS ON SOCIAL MEDIA BY INTENTIONALLY ACCESSING ELECTRONIC INFORMATION / ELECTRONIC DOCUMENTS CONTAINING INSULTING / DEFAMATION (STUDY OF DECISION NUMBER 5201 K/Pid.Sus/2025/PN. Lubuk Pakam) Wahyu Utama Putra Nasution; Rahmayanti
Journal of International Islamic Law, Human Right and Public Policy Vol. 4 No. 2 (2026): June
Publisher : PT. Radja Intercontinental Publishing

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Abstract

The existence and use of the internet today is like a double-edged sword. Besides contributing to the improvement of human welfare and the advancement of civilization, it can also be a means for committing various unlawful acts, including criminal acts. These crimes include information espionage, data theft, credit card fraud, the spread of computer viruses, adult and child pornography, the distribution of problematic emails, and anti-ethnic, religious, racial, and intergroup (SARA) campaigns, terrorism, and extremism via the internet. These various forms of crime are known as "cybercrime." The term "cybercrime" is also equated with "Cybercrime," "Cybercrime," or "International Crime."
Digital Transformation and its Role in Enhancing the Security of Accounting Information An Analytical Study of the Opinions of a Sample of Accountants from Private Banks in Baghdad Governorate: Transformasi Digital dan Perannya dalam Meningkatkan Keamanan Informasi Akuntansi: Studi Analitis terhadap Pendapat Sebagian Akuntan dari Bank Swasta di Provinsi Baghdad Yaseen, Lecturer.Dr. Jasim Mohammed; Al-Zubaidi , Alaa Abd Al-hussen Omran; A. Alrawi, Prof. Dr. Hikmat
Indonesian Journal of Law and Economics Review Vol. 21 No. 2 (2026): May
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijler.v21i2.1547

Abstract

General Background Digital transformation has become a central theme in modern organizations seeking to adapt to technological advancements and evolving operational environments. Specific Background This study focuses on the integration of digital transformation practices within organizational and financial systems, particularly in relation to performance and information security. Knowledge Gap Despite growing attention, limited clarity exists regarding how digital transformation interacts with organizational processes and performance outcomes in specific institutional contexts. Aims The study aims to examine the role of digital transformation in shaping organizational performance and supporting secure information systems. Results The findings indicate that digital transformation is associated with improved organizational processes, better data management, and stronger alignment with strategic objectives. Novelty The study offers a comprehensive perspective by linking digital transformation with both performance and information security considerations within organizations. Implications The results suggest that institutions should adopt structured digital strategies to optimize operational processes and ensure information security in dynamic environments. Keywords: Digital Transformation, Organizational Performance, Information Systems, Strategic Management, Information Security Key Findings Highlights Integration of technology supports structured operational processes Data management practices align with organizational objectives Security considerations are embedded within transformation strategies
ANALYSIS OF DIGITAL COMMUNICATIONS OF THE SOUTH TAPANULI REGIONAL GOVERNMENT IN DISTRIBUTING FLOOD DISASTER INFORMATION IN 2025 Berliana, Farida; Paralihan, Hotmatua
Journal Analytica Islamica Vol 15, No 2 (2026): ANALYTICA ISLAMICA
Publisher : Program Pascasarjana UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jai.v15i2.29259

Abstract

This study aims to analyze the digital communication of the South Tapanuli Regional Government in distributing information about the 2025 flood disaster via Instagram. The method used was a qualitative approach with content analysis techniques on published posts. The results show that the government's digital communication is structured with early warning content, disaster information, assistance, and recovery to increase public awareness and trust. Educational content is most effective, but communication is still one-way. Overall, it is effective, but interactivity and two-way communication are needed to improve public preparedness.
Analysis of the Effectiveness of Geographic Information Systems for Natural Disaster Data Management in Indonesia Maesaroh
Journal of Technology and Engineering Vol 3 No 2 (2025): Journal of Technology and Engineering
Publisher : Yayasan Banu Haji Samsudin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/journaloftechnologyandengineering.v3i2.247

Abstract

This study aims to analyze the effectiveness of Geographic Information Systems (GIS) in managing natural disaster data in Indonesia through a qualitative approach based on literature studies. Indonesia as an archipelagic country located in the Pacific ring of fire region has a high risk of natural disasters such as earthquakes, volcanic eruptions, floods, and landslides. Fast, accurate, and integrated disaster data management is an urgent need in disaster mitigation and management efforts. GIS is considered to be able to present relevant spatial and temporal information to support decision-making by policymakers and emergency response agencies. This study examines various scientific literature, policy reports, and official documents from 2015 to 2024 to evaluate the contribution of GIS in the context of disaster management in Indonesia. The results of the study show that GIS is effective in mapping disaster-prone areas, supporting early warning systems, and improving coordination between agencies through map-based visual data. However, challenges are still found in terms of data integration between regions, limited human resource capacity, and lack of standardization of spatial data. Therefore, strengthening technical capacity and developing policies based on spatial data needs to be improved. This research is expected to make a theoretical and practical contribution to the development of a sustainable and adaptive geographic information system to disaster dynamics in Indonesia.
The Mediating Role of Risk Perception in the Effect of Information Literacy on Students’ Disaster Preparedness Andini, Nisye Frisca; Putra, Riki Wanda; Aldebaran, M Fitriansyah
JURNAL GEOGRAFI Vol. 18 No. 1 (2026): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v18i1.72188

Abstract

This study examines how information literacy influences students’ disaster preparedness by incorporating risk perception as a mediating variable. Disaster-prone higher education environments require strong information comprehension skills to support readiness against potential hazards. The research involved 184 students from Merchant Marine Polytechnic of West Sumatra and STKIP Ahlussunnah, selected using purposive sampling. quantitative survey design approach was applied using SEM-PLS path analysis to evaluate direct and indirect effects. The results show that information literacy significantly influences disaster preparedness through an indirect effect mediated by risk perception (β = 0.205; p = 0.000). This finding highlights that risk perception strengthens the translation of information literacy into concrete preparedness actions. Practically, institutions should design information literacy programs that enhance not only access to technical data but als4o students’ awareness and appraisal of disaster risks. This study is limited by its focus on two campuses in a specific geographic area, suggesting the need for broader comparative studies. Overall, the research confirms that incorporating psychological components such as risk perception is essential for optimizing disaster preparedness strategies among university students.
DEVELOPMENT OF AR-BASED CAREER INFORMATION SERVICE MEDIA AT SDN 07 TALA, TAKALAR DISTRICT Husna, Asmaul; Harum, Akhmad; Aswar, Aswar
KLASIKAL : JOURNAL OF EDUCATION, LANGUAGE TEACHING AND SCIENCE Vol 8 No 1 (2026): Klasikal: Journal of Education, Language Teaching and Science
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52208/klasikal.v8i1.1697

Abstract

Career information services at SDN 07 Tala still rely on oral explanations and simple posters, resulting in low understanding of sixth grade students regarding various professions, tasks, educational paths, and their relationship to personal interests and talents. This study aims to: (1) Describe the needs of Augmented Reality-based career information service media at SDN 07 Notes; (2) Develop a prototype for developing Augmented Reality-based career information service media at SDN 07 Note; (3) Measure the validity level of Augmented Reality-based career information service media at SDN 07 Note; and (4) Assess the practicality level of Augmented Reality-based career information service media at SDN 07 Tala. The study uses the Borg and Gall Research and Development (R&D) model approach, which was modified from 10 stages to 8 stages, including initial research, design, prototype development, expert validation, revision, small group trials, and the final product. The results of this study are (1) The need for AR media is very urgent (average career understanding score 66-75%); (2) The prototype developed systematically from 6 to 9 professions with a complete menu; (3) Very reasonable validity (99.58%); and (4) Practical practicality (95.05%) based on teacher (97.50%) and student (92.60%) responses. The conclusion confirms that AR-based Lingkar media is effective in increasing elementary school students' career insights in an interactive and fun way, recommended for routine integration in BK services with the addition of audio narration and local professions.
Cubizpay: Information System in Credit Unions YUSUF, Rolland M.; PARANOAN, Selmita
International Journal of Environmental, Sustainability, and Social Science Vol. 7 No. 3 (2026): International Journal of Environmental, Sustainability, and Social Science (May
Publisher : PT Keberlanjutan Strategis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38142/ijesss.v7i3.944

Abstract

Credit Unions, as a place for human empowerment, have inefficiencies in their operational activities due to the lack of information systems needed by Credit Union members in making transactions, resulting in a decrease in member trust in Credit Unions. In 2021, Credit Union Indonesia presents CubizPay as a media for member transactions. This research aims to determine the benefits of CubizPay in increasing member trust in Credit Union services. This research applies an interpretative approach with interpretative phenomenological analysis, to find out the meaning of user experience in accepting and using CubizPay through interviews and documentation with (5) Credit Union members who are active CubizPay users. This research found that the benefits of CubizPay can increase member trust through transaction transformation in member activities, which is equipped with a reliable security system to protect member transaction, as well as internal controls that help minimize risks in the Credit Union environment. CubizPay as an information system in Credit Unions is known to be able to increase member trust and help the Credit Union’s operational activities. This research analysis to introduces CubizPay as an information system for Credit Unions in Indonesia.

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