IJEME Vol. 13, No. 2, Apr. 2023
Cover page and Table of Contents: PDF (size: 604KB)
The accuracy of population forecasts is one of the most important calculations in demography statistics. However, traditional demographic methods used in population projections are tend to produce biased results. The need for accurate prediction of future behavior in a number of areas require the application of reliable and efficient methods. Recently, machine learning (ML) models have emerged as a serious competitor to classical statistical models in the forecasting community. In this study, the performance and capacity of the four different ML models such as Random forest (RF), Decision tree (DT), Linear regression (LR) and K-nearest neighbors (KNN) to the prediction of population has been examined. The aim of the study is to find the best performing regression model among these machine learning algorithms for forecasting of population. The data were collected from the State Statistical Committee of the Republic of Azerbaijan website were used for the analysis. We used five metrics such as mean absolute percentage error (MAPE), mean absolute error (MAE), root mean squared error (RMSE), mean square error (MSE) and R-squared to compare the predictive ability of the models. As the result of the analysis, it has been known that the all ML models showed high results with correlation coefficient of 0.985 - 0.996. Also the KNN and RF prediction models showed the lowest root mean square deviation, means square error and mean absolute error values compared to other models. By effectively using the advantage of the ML algorithms, the forecast of population growth the near future can be observed objectively, and it can provide an objective reference to the strategic planning in the public and private sectors, particularly in education, health and social areas.[...] Read more.
The use of learning websites in the field of education has now become a necessity. One of them is using a Learning Management System that supports the learning process. The Learning Management System is a system that tertiary institutions widely use to help the teaching and learning process run smoothly. Apart from providing benefits to tertiary institutions, this system must also be well received by the primary users, namely students. To assess the performance of a Learning Management System, tools that can be used include the Analysis using the Index – Performance Matrix. This matrix was initially developed to assess consumer satisfaction with the marketing of goods or services. Still, it can be developed to assess user satisfaction with the services of an LMS website. This study tries to assess one LMS using indicators to assess website user satisfaction, using the Importance – Performance Analysis Matrix, which is modified according to website assessment standards. The results of this Analysis obtained data on the gap between the performance expected by the user and the user's preferences regarding the level of importance of each indicator. Based on the data spread over the four quadrants, it can be determined which factors should be prioritized for improvement or improvement. These variables are variables 2, 3, 4 and 6, namely the Application features , application reliability, replication suitability and also ease of repair, we found several variables that need to be fixed immediately and which factors are not yet urgent. This research was conducted at a university in South Tangerang.[...] Read more.
Cyber-physical systems (CFS) have already become an integral part of our lives. Starting from the energy sector, production and transport, to healthcare, trade, and financial spheres, these systems have been widely applied everywhere. The realization of threats to the information security of such systems can cause very serious disasters, human casualties, financial loss, as well as damage the image of the companies that use these systems.
From this point of view, it is very important to investigate the issues of ensuring information security of KFS.Security problems of cyber-physical systems are analyzed. At the same time, the role and importance of the human factor in ensuring the information security of cyber-physical systems are explained. The difficulties faced by enterprises in informing employees about information security and forming a culture of information security in them are analyzed. Appropriate training methods are explained and recommendations are given to develop employees' necessary knowledge and skills related to information security.
A brain stroke is a condition with an insufficient blood supply to the brain, which causes cell death. Due to the lack of blood supply, the brain cells die, and disabilities occurs in different parts of the brain. Strokes have become one of the major causes of death and disability in recent years. Investigating the affected individuals has shown several risk factors that are considered to be causes of stroke. Considering such risk factors, many research works have been performed to classify and predict stroke. In this research, we have applied five machine learning algorithms to identify and classify the stroke from the individual’s medical history and physical activities. Different physiological factors have are considered and applied to machine learning algorithms such as Naïve Bayes, AdaBoost, Decision Table, k-NN, and Random Forest. The algorithm Decision Table performed the best to predict the stroke based on different physiological factors in the applied dataset with an accuracy of 82.1%. The machine learning algorithms can be a helpful for clinical prediction of stroke against individual’s medical history and physical activities in a better way.[...] Read more.
With the high mobile phone penetration and subsequent significant usage of mobile phone applications, mobile users have become prime targets of hackers. Secure Software Development (SSD) advocates incorporating security aspects at the initial stages of software development. This study proposes a novel Mobile Application Development Lifecycle by reviewing SSD concepts and incorporating these concepts into MADLC- a mobile-focused software development lifecycle to create a security-aware Mobile Application Development Lifecycle (sMADLC). The proposed development lifecycle, sMADLC, can potentially help mobile application developers create secure software that can withstand hacker aggression and assure mobile application users of the confidentiality, integrity and availability of their data and systems.[...] Read more.