Knowbase : International Journal of Knowledge in Database https://ejournal.uinbukittinggi.ac.id/index.php/ijokid <p><strong>Focus :</strong></p> <p><strong><em>Knowbase : International Journal of Knowledge in Database</em></strong> is a peer-reviewed journal that publishes articles which contribute new results in all areas of the database management systems &amp; its applications. The goal of this journal is to bring together researchers and practitioners from academia to focus on understanding Modern developments in this field, and establishing new collaborations in these areas. Authors are solicited to contribute to the journal by submitting articles that illustrate research results that describe significant advances in the areas of Database management systems.</p> <p><strong> Scope</strong></p> <ul> <li>Data and Information Integration &amp; Modelling</li> <li>Data Mining Algorithms</li> <li>Data Mining Systems, Data Warehousing</li> <li>Online Analytical Processing (OLAP)</li> <li>Data Structures and Data Management Algorithms</li> <li>Database and Information System Architecture and Performance</li> <li>DB Systems &amp; Applications</li> <li>Electronic Commerce and Web Technologies</li> <li>Electronic Government &amp; e-Participation</li> <li>Expert Systems, Decision Support Systems &amp; applications</li> <li>Knowledge and information processing</li> <li>Knowledge Processing</li> <li>Mobile Data and Information</li> <li>Multi-databases and Database Federation</li> <li>User Interfaces to Databases and Information Systems</li> </ul> Universitas Islam Negeri Sjech M. Djamil Djambek Bukittinggi en-US Knowbase : International Journal of Knowledge in Database 2798-0758 <p><strong>Authors who publish with this journal agree to the following terms:</strong></p><ol><li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.</li><li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.</li><li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a href="http://opcit.eprints.org/oacitation-biblio.html" target="_blank">The Effect of Open Access</a>).</li></ol><p><strong><br /><br /></strong></p> Analysis of Acceptance and Use of the MyKopay Application Using the UTAUT 2 and EUCS Models https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8366 <p>The government of Payakumbuh City introduced the MyKopay application through the Department of Communication and Information as a means to provide public services and information related to local government activities. This study aims to analyze the acceptance and use of the MyKopay application using two models: the Unified Theory of Acceptance and Use of Technology (UTAUT 2) and End-User Computing Satisfaction (EUCS). Additionally, it seeks to identify aspects of the application that need improvement and maintenance. The research method is descriptive quantitative. The research findings indicate that factors such as Content, Accuracy, Format, Timeliness, Ease of Use, Performance Expectancy, Effort Expectancy, Social Influence, Facilitating Conditions, Hedonic Motivation, Price Value, Habit, and User Satisfaction do not have a significant positive impact on User Satisfaction or Behavioral Intention. However, Behavioral Intention has been proven to have a significant positive effect on Use Behavior. Age and gender factors strengthen the Habit variable and have a significant positive impact on Use Behavior. The research results show that the MyKopay application has been accepted and used by the people of Payakumbuh City</p> Wenty Zahrati La Ode Muh. Rabil Saputra Zahra Aqilah Dytihana Copyright (c) 2024 Wenty Zahrati, La Ode Muh. Rabil Saputra, Zahra Aqilah Dytihana http://creativecommons.org/licenses/by-sa/4.0 2024-06-30 2024-06-30 4 1 01 12 10.30983/knowbase.v4i1.8366 Integration of Digital Public Services Mall Application with a Citizen Centric Government Services Approach https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8368 <p class="Abstract" style="text-align: justify; line-height: normal;"><span lang="EN-US" style="font-size: 7.0pt; font-family: 'Book Antiqua',serif;">The integration of government services represents a practical solution in the context of the numerous applications developed by both Central and Regional Governments, particularly those used to access public service applications. The Digital Public Service Mall application can be leveraged by Regional Governments through data integration, enhanced with Single Sign-On (SSO) capabilities. This will facilitate collaboration between Regional Apparatus Organizations (OPD), enabling them to work together as technical managers of public services. Consequently, this will simplify public access to these services, eliminating the need for repeated data entry processes. Additionally, this system can be developed using facial recognition (FR) technology, which can be integrated with the Digital Population Identity (IKD). The concept of Citizen-Centric Government Services has been widely adopted by governments in various countries to bring government services closer to their citizens. This research focuses on analyzing the integration of data and public service applications, specifically the Digital Public Service Mall (MPP) application in West Java Province. The data analysis technique employed is descriptive-analytical with a qualitative approach. The Citizen-Centric Government Services framework assists in analyzing the extent of data and application integration implementation in a government service. This framework outlines the dimensions within it based on achievement indicators aligned with expectations. Data collection includes semi-structured interviews, participatory observations, and documentation. Based on the analysis results using the dimensional approach within the Citizen-Centric Government Services Framework, it is evident that the Digital MPP application of West Java Province is optimally utilized by the Regency/City Governments and the people of West Java Province. The analysis using the Citizen-Centric Government Services Framework approach reveals that several achievement indicators within each dimension can be met through effective collaboration between the government and the community.</span></p> Rina Wahyuni Copyright (c) 2024 Rina Wahyuni http://creativecommons.org/licenses/by-sa/4.0 2024-06-30 2024-06-30 4 1 13 27 10.30983/knowbase.v4i1.8368 Association Rule Mining To Enhance Sata Bottle Sales https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8555 <p>Sales of sata bottles are growing and increasing, However, the results of these sales transactions have not been maximally utilized by shop owners. In fact, by using data mining techniques, the collection of data can generate new information. Association rule mining can find interaction patterns between one or more items in a very large data set. This algorithm is widely used in transaction data for purchasing product items at the same time by customers. research objectives to improve sales strategy, by collecting sales patterns that help related parties make sales strategy decisions, recommend products to customers, and maintain product availability. The research method using apriori algorithm data mining system that aims to determine consumer purchasing patterns. The association rule obtained results in 1 product that is often purchased simultaneously, namely Buy Rabbit Bottle, 420ml Clear Bottle, Buy Rabbit Bottle, Glass Straw, and Buy Rabbit Bottle, Nice Glass with a support value of 10% and a confidence of 80% in three frequent itemset and Rabbit Bottle, 420ml Clear Bottle, Rabbit Bottle, Glass Straw, and Nice Glass, 420ml Clear Bottle with a support value of 15% and a confidence of 83% in two frequent itemset.</p> slamet kacung slamet Farah Aqmarinar Rohmah Edi Prihartono Copyright (c) 2024 slamet kacung slamet, Farah Aqmarinar Rohmah, Edi Prihartono http://creativecommons.org/licenses/by-sa/4.0 2024-06-30 2024-06-30 4 1 28 37 10.30983/knowbase.v4i1.8555 Prototype Motion Sensor And Automatic Locking Based On The Internet Of Things (IOT) https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8122 <p>The application of IoT in remote control systems to home security is becoming a necessity. This research designed 2 parts of the application of IoT, namely the automatic locking control system and motion sensor detection. With IoT, it can help reduce the risk of laziness in households. The equipment used in the IoT circuit is the nodemcu esp8266 internet module, 5vdc relay module, electrical sockets and pitting and cellphone chargers. The way this electrical IoT works is by controlling it from a smartphone that is connected to a device using applications and the internet. With a note on the IoT tool at home, there is already a living internet network. If the internet network has a problem, the tool will not work properly. The output of this research is a Control System IoT product in the form of a prototype that can be used for the motion detection process and an IOT-based door locking system that can be controlled from a smartphone</p> Wirdah Choiriah Eddissyah Putra Pane Roki Hardianto Eva Tri Ningsih Copyright (c) 2024 Wirdah Choiriah, Eddissyah Putra Pane http://creativecommons.org/licenses/by-sa/4.0 2024-06-30 2024-06-30 4 1 38 48 10.30983/knowbase.v4i1.8122 Implementation of Convolutional Neural Networks (CNN) in An Emotion Detection System for Measuring Learning Concentration Levels https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8429 <p>Technological advancements have had a significant impact on the education sector, including the application of Convolutional Neural Networks (CNN) for facial image analysis. This research aims to implement CNN to measure students' learning concentration levels. The FER2013 dataset, which includes seven emotion classifications and comprises 28,709 images for training data, is used as the database. The data is processed through rescaling and augmentation to prepare the CNN model. The model consists of several convolutional layers, pooling layers, and fully connected layers designed to extract crucial features from facial images. Evaluation results demonstrate a very high accuracy of 94.95% on training data, indicating that the model effectively recognizes complex patterns within the data. Although there is a higher loss value of 157% and a decreased accuracy of 62.75% on validation data, this suggests that the model possesses a strong foundational capability and can still be improved through further adjustments. With high accuracy in training and promising validation results, the model shows substantial potential for real-world application, where it can assist teachers in understanding students' emotional responses in real-time. The implementation of CNN aids educators in comprehending students' emotional responses and adapting their teaching methods more effectively, thereby creating a more conducive learning environment and enhancing students' academic and social development. These findings also open opportunities for further research to improve the performance and generalization of the model on unseen data, making this technology an increasingly reliable tool in education</p> Fajri Rinaldi Chan Firdaus Annas Yulifda Elin Yuspita Gusnita Darmawati Copyright (c) 2024 Fajri Rinaldi Chan, Firdaus Annas, Yulifda Elin Yuspita, Gusnita Darmawati https://creativecommons.org/licenses/by-sa/4.0 2024-08-30 2024-08-30 4 1 49 61 10.30983/knowbase.v4i1.8429 Design of a Predictive Model for Prospective New Students Using Monte Carlo Simulation https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8144 <p>The competition between universities in the admission of new students is becoming increasingly intense, making it more difficult for the public, especially prospective students, to choose a study program. The Department of Hadith Sciences at UIN Syech M. Djamil Djambek Bukittinggi has fewer applicants compared to other departments due to the limited interest of prospective students in enrolling. In response to this issue, the author developed a Monte Carlo simulation predictive model that allows prospective students to estimate the number of applicants to the Department of Hadith Sciences for the upcoming academic year. The research technique employed in this study uses Monte Carlo simulation to apply this research. The number of students in the Department of Hadith Sciences who enrolled from 2019 to 2023 serves as the data used to predict the number of new student registrations. The accuracy of the simulation in estimating the number of new students who will enroll in the Department of Hadith Sciences is 218 students, with an average annual accuracy of 65.1%. By applying the Monte Carlo method, it is possible to predict the number of students who will enroll in the Department of Hadith Sciences with a relatively high level of accuracy in its application</p> Dela Paramita Liza Efriyanti Supratman Zakir M. Imamuddin Copyright (c) 2024 Dela Paramita, Liza Efriyanti, Supratman Zakir, M. Imamuddin https://creativecommons.org/licenses/by-sa/4.0 2024-08-30 2024-08-30 4 1 62 74 10.30983/knowbase.v4i1.8144 Application of Graph Colouring Algorithm in Course Scheduling Process https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8136 <p class="Abstract">Scheduling is a crucial aspect in every occurrence, ensuring that all processes are orderly. Gema Nusantara Bukittinggi Health Vocational School currently utilizes Microsoft Excel for managing subject scheduling, which often leads to scheduling conflicts. The objective of this research is to develop a web-based subject scheduling system for Gema Nusantara Bukittinggi Health Vocational School. The outcome of this research is a web-based subject scheduling system that is valid, practical, and effective, thereby serving as a useful tool for subject scheduling. This research is classified as research and development (R&amp;D). The system development follows an incremental model with four stages: analysis, design, coding, and testing. The product was evaluated through three types of tests: validity, practicality, and effectiveness. The validity test, conducted with three experts, yielded a value of 0.80, indicating validity. The practicality test, carried out with three practitioners, resulted in a value of 0.97, signifying high practicality. The effectiveness test, involving fifteen teachers, achieved a value of 0.95, demonstrating high effectiveness. Based on the product testing results, it can be concluded that the research product, which is a web-based scheduling system, is suitable for use in the subject scheduling process at Gema Nusantara Bukittinggi Health Vocational School</p> Nella Lestari Borotan Yulifda Elin Yuspita Firdaus Annas Gusnita Darmawati Copyright (c) 2024 Nella Lestari Borotan, Yulifda Elin Yuspita, Firdaus Annas, Gusnita Darmawati https://creativecommons.org/licenses/by-sa/4.0 2024-08-30 2024-08-30 4 1 76 93 10.30983/knowbase.v4i1.8136 Application of the Naïve Bayes Algorithm in Classifying the Reading Interests of Regional Library Visitors https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/8680 <p>Reading interest is a key indicator in assessing the success of library services. However, manually understanding visitors' preferences poses a challenge for library managers. This study aims to classify the reading interests of regional library visitors by employing the Naïve Bayes algorithm, a widely-used classification method in data mining. The research data includes visit records and book borrowing data from a regional library. Through a quantitative approach, this study analyzes reading interest patterns and evaluates the performance of the Naïve Bayes algorithm in classifying these interests. The analysis results show that the algorithm achieves an accuracy of 65%, with a precision of 62%, recall of 63%, and F1-score of 63%. These findings are expected to assist libraries in formulating better-targeted collection management and service policies, contributing to the overall improvement of reading interest in the community. This study contributes to the field by providing a practical, data-driven solution for libraries to enhance service quality through a better understanding of visitor preferences. Furthermore, it demonstrates the applicability of the Naïve Bayes algorithm in a non-commercial context, encouraging future research on data-driven approaches in library management to support literacy and educational development</p> Murlena Murlena Wandi Syahindra Copyright (c) 2024 Murlena, Wandi Syahindra https://creativecommons.org/licenses/by-sa/4.0 2024-09-25 2024-09-25 4 1 94 105 10.30983/knowbase.v4i1.8680