• The Journal of Korean Association of Computer Education
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• v.10 no.6
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• pp.79-89
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• 2007

The advent of e-Learning paradigm requires a various type of e-Learning models and systems which are appropriate to support effective teaching-learning process. Accordingly, the teaching-learning system using the Internet and the intelligent tutoring system(ITS) in e-Learning environment has attracted a fair amount of critical attention. However there is a wide gap between infrastructure of a present educational site and the u-learning environment. Therefore, in this paper, an ITS teaching-learning model is proposed and system is developed for a school environment, which is based on a learner's cognitive structure and applies a concept of u-Learning, and then is verified for validity. X-Neuronet, the developed system, offers a method of representing a learner's cognitive structure so as to apply the method for the efficient individualized learning.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.4
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• pp.19-24
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• 2012

Recently, universities have difficulties in operating the normal curriculum because fresher's basic academic ability is declined. It causes campus misfits so managing students become a rising issue. The education system that focuses only on college entrance exam is one of the reasons why this phenomenon occurred. So, several tries are enacted at university to improve this problem. One of the solutions is enforcing the activity with self-directed Learning Community students to know learning level themselves and execute systematic studying habit is essential for improving this problem. This activity can help students understanding and having interest in class and be motivated to study. But it had burdened tutors with submitting activity report in written form. In this paper, we suggest the Mobile Based Activity Report Submission System which can be the solution of the problem that the Self-directed Learning Community System has. This system reduces the emotional burden to write the reports and manages them efficiently.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1999.11a
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• pp.322-325
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• 1999

There is a number of national internet web sites which provide educational information services and contents. One of the more important issues in educational services is to offer a set of educational contents of high quality. It is important to develop the instruction-learning efficiency based contents, considering the variety of learners and content types. In this paper, we present the design of a cyber teaming system using distributed learning standard technology. In this cyber teaming system we particularly describe its course management service which allows to users the registration, deletion, modification, contents conversion, and contents learning.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.380-390
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• 2020

Cyber-university has a higher rate of dropout freshmen due to various educational factors, such as social background, economic factors, IT knowledge, and IT utilization ability than students in twenty offline-based university. These students require a different dropout prevention method and improvement method than offline-based universities. This study examined the main factors affecting dropout during the first semester of 2017 and 2018 A Cyber University. This included management and counseling factors by the 'Decision Tree Analysis Model'. The Management and counseling factors were presented as a decision-making method and weekly methods. As a result, a 'Dropout Improvement Model' was implemented and applied to cyber-university freshmen in the first semester of 2019. The dropout-rate in freshmen applying the 'Dropout Improvement Model' decreased by 4.2%, and the learning-persistence rate increased by 11.4%. This study applied a questionnaire survey, and the cyber-university students LMS (Learning Management System) learning results were analyzed objectively. On the other hand, the students' learning results were analyzed quantitatively, but qualitative analysis was not reflected. Nevertheless, further study is necessary. The 'Dropout Improvement Model' of this study will be applied to help improve the dropout rate and learning persistence rate of cyber-university.

• Smart Media Journal
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• v.12 no.11
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• pp.36-47
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• 2023

Industrial Control System(ICS), which controls facilities at major industrial sites, is increasingly connected to other systems through networks. With this integration and the development of intelligent attacks that can lead to a single external intrusion as a whole system paralysis, the risk and impact of security on industrial control systems are increasing. As a result, research on how to protect and detect cyber attacks is actively underway, and deep learning models in the form of unsupervised learning have achieved a lot, and many abnormal detection technologies based on deep learning are being introduced. In this study, we emphasize the application of preprocessing methodologies to enhance the anomaly detection performance of deep learning models on time series data. The results demonstrate the effectiveness of a Wavelet Transform (WT)-based noise reduction methodology as a preprocessing technique for deep learning-based anomaly detection. Particularly, by incorporating sensor characteristics through clustering, the differential application of the Dual-Tree Complex Wavelet Transform proves to be the most effective approach in improving the detection performance of cyber attacks.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.5
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• pp.71-85
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• 2007

In recent years, the need of the education for the Internet ethics is emphasized as the number of offenses committed by juveniles is increasing. So many researches on the methodologies about educating the Internet ethics have been being performed But, those are not competent to make young people inspire the sense of ethics in the cyber-space because they get trained by the cramming system of education with a textbook in their schools. In this paper, we developed a web-based learning model and an learning system including various multimedia materials that induce the learners for ethics to study actively. And then we applied our system to school education for the Internet ethics, and verified the effectiveness of our learning model and system.

• Journal of Korea Technology Innovation Society
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• v.6 no.1
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• pp.74-91
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• 2003

Science and Technology University(STU) will be established by twenty-two government institutes next year. STU has latent problems with geographical limitations caused by organizing the faculties and facilities of the government research institutes, which are located all over the country. This study tries to examine the Educational Administration(Opreation) Model of STU and analyse expected problems and further, proposes the introduction of cyber education system which will maximize efficiency of educational operation of the system and enhance learning. It also discusses the practical problems in the implementation of cyber education system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.6
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• pp.1830-1837
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• 2008

The growth of an information and knowledge based society has changed the base of education from institution-based to a learner-based system. This indicates that the educational purpose and individual characters of the learners are the primary factors for the educational success. In the information and knowledge based society, the Cyber University is a representative example of the new educational paradigm with its online communities, multi-media based education and communication among the learners. The sample of study was 1620 students of a leading cyber university in Seoul, Korea. One of the results in this study showed that satisfaction levels of learning and education do not have significant relationship with age or employment. Rather the lowering level of satisfaction after sufficient adaptation period of cyber education was raised as rising problem.

• Journal of the Korea Computer Industry Society
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• v.2 no.2
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• pp.181-194
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• 2001

The purpose of this study is to develop the contents for Cyber Learning System of Korean Costumes on WBI(Web Based Instruction) that can be applied to home economics learning and teaching and used to help learners get more positive attitude toward home economics education through various activities. The contents consist of the materials about Korean costumes that are divided into five periods, that is, three ancient kingdoms(Shilla, Packche, and Koguryo), Unified Shilla, Koryo Dynasty, Chosun Dynasty and early 1900s in Korea. They also consist of lectures on kinds, characteristics, and changing procedures of those costumes. These lectures are supposed to help learners understand the traditional culture of Korean costumes. Furthermore, the lists of terminology on Korean costumes enable learners to solve the problems related to the costumes on their own. In conclusion, the developed contents on Korean costumes for Cyber learning make it possible to learn and teach home economics in the distance by applying the educational information system to secondary schools and to support the learning system for the home economics education in the schools.

• The Journal of Korean Association of Computer Education
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• v.10 no.6
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• pp.61-68
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• 2007

The Cyber Home Learning System(CHLS) is a representative, nationwide e-learning system specially for G1-12 in Korea. It was launched at 16 MPOE in 2005 and has been evolved through every year-its evaluation and sharing best practices. In terms of evaluation, learners' satisfaction is one of essential and indispensable factors to improve CHLS. In this research, evaluation criteria on learners's satisfaction were developed, and also, the developed evaluation criteria were verified through the process of item goodness analysis and item characteristic analysis. These evaluation criteria are expected to contribute to analysing learners' satisfaction more objectively and quantitatively.