• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1568-1571
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• 2011

본 논문에서는 구현한 것은 워드프로세서 자격검정 모의고사를 유선 인터넷을 통하여 테스트 해볼 수 있는 프로그램이다. 워드프로세서 시험 등급은 1급으로 구성되어 있으며, 유선으로 이용 가능한 서비스를 좀 더 확대하여 모바일 기기로도 접속하여 응시내역을 확인할 수 있도록 제작되었다. 또한 모의고사 응시 후 과목별 오답노트를 제공하여, 틀린 문제를 모의고사 후에 재복습도 가능하도록 설계 및 구현하였고, 다른 응시생과 시험 결과를 비교할 수 있도록 하여 자신의 현재 성적 중에서 부족한 부분을 확인한 후 추가 학습을 통해 채울 수 있도록 하였다. 모바일 기기를 통해 유선 인터넷에서 응시한 모의고사의 응시내역을 확인할 수 있도록 구현한 것은 시간 및 공간의 제약없이 확인하는 방법을 제공하기 위함이다.

• Journal of The Korean Association of Information Education
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• v.5 no.1
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• pp.83-100
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• 2001

A survey about uses of internet was conducted for elementary, middle and high school mathematics teachers in Seoul to determine the accessibility, level of usage, expertise, and general attitudes towards using internet for educational purposes. The survey indicated that only half of the teachers had computers in the classroom and less than 10% of the teachers had access to the internet in the classroom. The survey suggests that in order to quickly incorporate internet into mathematics education, teachers need help in getting the hardware, training for technology application, and Korean based resources on the internet. The survey also suggests that the teachers need to recognize the power of the internet usage and to do research to find a better way to integrate technology into their teaching.

• Journal of The Korean Association of Information Education
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• v.8 no.3
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• pp.335-349
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• 2004

Recently, there is change the environment of education due to development of Science Technology Specially, As education information on web increased by internet, using education web data by mean of medium that aids learning by computer. Also It studied method that used the Computer as learning medium through the CAI(Computer Assisted Instruction), ICAI(Intelligent CAI), and ITS(Intelligent Tutoring System). But legacy system are not support efficient method that learns to vary learner suitable learning method by individual level. Specially It is not suitable the education course to direct current course of education, and not consider different of student capability, aptitude, need, interesting, not maximized the individual growable power and effect of education. To solve the this problem, our paper suggest the web-based self-directed MITS(Multimedia ITS) that supply the needed the information on web, make the environment that can self-directed learning. To maximized effect of individual learning, our paper structured coursed, characterized, related learning contents in region of numeral at mathematics of primary school. And then integrated contents and class, design and implement the web-based MITS that consist of 4 module to escape from limitation of learner grade, learning time, learning place.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.12 s.159
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• pp.1788-1799
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• 2006

Assessment of the implementation of a web-based courseware technology application across a merchandising program over a two-year period provides empirical evidence that students believe the technology was easy to use and useful. Results also show that the use of the application was not a hard-ship for the students in terms of time or access, that students in lower class ranks who had not had technology enhanced courses previously were more satisfied with the technology than upper class students, and that perceptions of the technology and satisfaction with it increase with experience using the technology.

• Journal of the Korea Society of Computer and Information
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• v.13 no.4
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• pp.59-69
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• 2008

The purpose of this study was to investigate children's Perception of parenting attitude parent and learned helplessness on addictive use of computer game. The data was collected through paper-pencils surveys with 745 students who are attending the 4, 5, and 6 grade of three elementary schools. The instrument used to see how they looked at the parenting attitude of their was Ji-hyun Hwang(2006)'s Perceived Parenting Attitude Inventory, Chang-woo Song(1997)'s Learned Helplessness, and Internet Game Addiction Test by developed Korean Agency Digital Apportunity & Promotion. Statistics and methods used for the data analysis were Cronbach'a alpha, freuency, percentage, Two-Way ANOVA, Pearson's Correlation, and Regression by using SPSS WIN 12.0. The results of this study is described as follows. In this study, prevalence of computer addiction tendency and addiction is 14.3%. Male students showed highest computer addiction game than female students.

• The Journal of Korean Association of Computer Education
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• v.7 no.5
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• pp.33-43
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• 2004

Fashion design education essentially requires not only a theoretical but also a practical process in which feedback comes through personal interactions between an instructor and a student. But the existing WBI system exemplifies its limitations by applying only a one-way Distance Education methodology that limit interactions based only on the theoretical texts. This study affirms that distance learning system is possible for the applied component of the fashion design curriculum as long as the specific needs of the particular program is taken into consideration and systematically applied. So it designed and applied an original web-based distance educational system specifically incorporating the needs of the fashion design curriculum Thus the results show that the enhanced distance education system is a tool that could be effectively utilized with the same degree of success as the traditional classroom as long as the traditional teaching component of direct interaction necessary to the fashion design program is incorporated.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.22 no.5
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• pp.75-86
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• 2022

This study aims to solve the problem of class imbalance in numerical data by using a deep learning-based Variational AutoEncoder and to improve the performance of the learning model by augmenting the learning data. We propose 'D-VAE' to artificially increase the number of records for a given table data. The main features of the proposed technique go through discretization and feature selection in the preprocessing process to optimize the data. In the discretization process, K-means are applied and grouped, and then converted into one-hot vectors by one-hot encoding technique. Subsequently, for memory efficiency, sample data are generated with Variational AutoEncoder using only features that help predict with RFECV among feature selection techniques. To verify the performance of the proposed model, we demonstrate its validity by conducting experiments by data augmentation ratio.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.1169-1171
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• 2007

인터넷 사용의 증가 및 정보보호에 대한 의식의 증가로 인하여 누가, 언제, 어떻게 해당 사이트를 이용 하였는가 뿐만 아니라 어떤 침해 사고를 일으키고 있느냐에 대한 이슈도 증가하고 있다. 따라서 본 논문에서는 방화벽 원시로그를 기계학습기법을 이용하여 보다 빠르게 방화벽 원시로그의 침해사고에 대한 지능형 모델을 제안한다.

• The Journal of Korean Association of Computer Education
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• v.5 no.1
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• pp.85-98
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• 2002

In this study, We are developed learner traits analysis and profile management software modules to develop learnable courseware fits to learner's individual traits in cyber learning system. We specified learner's personal information, performance information, preference information and portfolio information as learner's traits variables in this study, these four types of information are managed in learner profile management DB based on elaborate analysis to learner's traits. And we consists of curriculum sequencing module using high and low level sequencing technology, these are used in organizing learning contents sequencing with learning topic and specific learning task. The advice algorithm module developed based on adaptive navigational support and rule based technology. This Result of Research are able to be used for develop learnable courseware fits to learner's individual traits in cyber learning systems.

• Digital Contents
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• no.10 s.161
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• pp.50-53
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• 2006

21세기 '신경제' 시스템에서 흔히 지식은 '미래 경제의 석유'로 비유된다. 그만큼 경제를 추진하는 역량이 크다는 말이다. 대체로 데이터가 수치화된 자료, 즉 조각난 정보라면 그것이 모인것이 '정보', 이후 쓰임새를 갖춘 통합된 정보가 '지식'으로 분류된다. 그런데 이 지식을 창출하고 저장하는 방식은 컴퓨터ㆍ위성ㆍ휴대전화ㆍ인터넷, 기타 디지털 기술의 확산으로 급격하게 변하고 있다. 또 아울러 지식이 쇠퇴하는 속도도 빨라져서 엘빈 토플러의 용어대로 수많은 지식들이 금방 '무용지식(obsoledge)'으로 전락하고 만다.