• Journal of the Korea Society of Computer and Information
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• v.14 no.8
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• pp.97-106
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• 2009

ABEEK, an independent non-governmental organization, is the recognized accreditor for the educational programs in engineering and related disciplines. ABEEK has developed the standard accreditation criteria to meet diverse needs of the engineering and related communities in Korea. A student attending at the accredited program has to complete the required courses and elective courses according to the curriculum flowchart to meet the accreditation criteria for a bachelor. Therefore an efficient and effective tool is necessary to support the adviser to monitor the completion of the required courses and elective courses according to the curriculum flowchart. In this paper, we describe an adviser tool developed. To develop an adviser tool. we established databases which contain the information of courses and their relations according to the curriculum flowchart. Adviser tool was developed to analyze student's DegreeAudit and represent the current completion information on the curriculum flowchart for effective monitoring. A closed test was performed and showed the increase of efficiency to meet the accreditation criteria for a bachelor.

• Journal of the Korea Society of Computer and Information
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• v.10 no.1 s.33
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• pp.209-216
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• 2005

Performance assessment has Problems about possibilities of assessment fault by appraisal, fairness, reliability, and validity of grading, ambiguity of grading standard, difficulty about objectivity security etc. This study proposes fuzzy Performance assessment system to solve problem of the conventional performance assessment. This Paper presented an objective and reliable performance assessment method through fuzzy reasoning, design fuzzy membership function and define fuzzy rule analyzing factor that influence in each sacred ground of performance assessment to account principle subject. Also, performance assessment item divides by formation estimation and subject estimation and designed membership function in proposed performance assessment method. Performance assessment result that is worked through fuzzy Performance assessment system can pare down burden about appraisal's fault and provide fair and reliable assessment result through grading that have correct standard and consistency to students.

• Journal of the Semiconductor & Display Technology
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• v.18 no.2
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• pp.73-77
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• 2019

Data mining techniques can also be used to increase the efficiency of production in the tax sector, which requires professional skills. As tax-related computerization was carried out, large amounts of data were accumulated, creating a good environment for data mining. In this paper, we have developed a system that can help tax accountant who have existing professional abilities by using data mining techniques on accumulated tax related data. The data mining technique used is random forest and improved by using f1-score. Using the implemented system, data accumulated over two years was learned, showing high accuracy at prediction.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11a
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• pp.265-268
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• 2002

최근 컴퓨터와 인터넷의 급속한 발전과 더불어 교육 문화는 사용자들로 하여금 새로운 세상을 열어주게 되었다. 21세기 교육이 평생교육사회라는 분야로 집중화되면서 끊임없는 자기 개발로 빠르게 변화하는 지식기반 사회에서 자신의 경쟁력을 키워가고 있다. 원격교육은 바로 이러한 평생교육을 달성 할 수 있는 매우 효과적인 방식으로 언제나 어디서나 누구나 양질의 교육을 받을 수 있는 열린 교육문화로서 본 연구에서는 학습자의 철저한 관리를 통한 학습능력의 향상을 중점으로 별도의 인터넷 접속과정 없이 편리하고 개인성이 보장된 원격 교육 시스템을 구현하는데 목적을 두었다. 본 논문은 MS의 미디어 스트리밍 서비스를 이용한 동영상 강의 시청 및 조절 과정, My_SQL을 이용한 동영상 강의에 대한 서브노트 문서 제공 및 질의 응답이 이루어지는 토론형 시스템 설계, 사용자의 강의 진도 체크와 출결사항 및 수강과목을 편리하게 관리할 수 있도록 설계되어 있다. 또한 시스템의 처리 과정에서 사용자 수강 관리에 연구의 초점을 두었으며 시스템 내에서 실시간으로 이루어지는 학습자 관리를 중점으로 구성되어 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10d
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• pp.750-753
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• 2006

e-Learning 분야는 정부, 기업, 학교 등 많은 조직에서 교육을 위한 수단으로 사용되어지고 있다. 이러한 e-Learning은 독립적인 운영플렛폼의 개발부터 웹 기반의 코스웨어(Courseware)까지 발전해왔다. 코스웨어는 컴퓨터 전달 체제를 통하여 교수-학습 과정을 촉진시켜 명시된 교수 목표 하에 학습자의 지식과 기능의 바람직한 변화를 목적으로 설계 및 개발된 교육용 소프트웨어와 데이터라고 할 수 있다. 또한 컴퓨터 언어 및 저작도구(Authoring Tools)를 이용하여 각 과목별 교육내용을 음성, 그림, 애니메이션, 동영상 등의 다양한 형태로 제시될 수 있도록 저작된 프로그램으로 주로 눈으로 보고 귀로 들으면서 학습하는 유형이다. 현재 코스웨어에서 제공되는 정보는 학습에 대한 정보와 교수정보 그리고 Client의 학습 진행 상황 등을 제공한다. 하지만 학습에 연관된 다른 학습이나 학습에 관련된 교수들의 전공정보, 또한 학습에 관련된 어플리케이션 등을 검색하려 할 때는 하나하나 따로 검색을 해야 하는 어려움이 따른다. 본 논문에서는 이러한 문제점을 해결하기 위하여 학습에 대한 목적과 관련학습, 관련교수, 관련연구, 관련 어플리케이션 등의 연관성을 토픽맵(TopicMap)을 이용하여 학습에 대한 더 정확한 정보를 쉽게 검색할 수 있게 한다. Client가 찾으려는 토픽을 중심으로 연관된 토픽과 카테고리를 나열하여 수작업으로 인한 검색시간과 잘못된 키워드 검색을 해결하였다.

• The Journal of Korean Institute for Practical Engineering Education
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• v.3 no.2
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• pp.18-26
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• 2011

Computational chemistry is one of the chemistry fields that deals with the theoretical chemistry problem using computer calculations and can be described as the chemistry lab moved on computer space. In line with recent enhancement of processing capability of computers, utilization of high performance computer cannot be overemphasized in the field of computational chemistry in performing complex calculation of huge molecular structure and simulation. While they have to use commands and consoles for high performance computer to execute complex calculation of huge molecular structure and simulation, most of students in natural science and engineering, who are not experts in computer technically, are likely to be unaware of UNIX. Under the circumstances, web-based educational support system for computational chemistry is needed to enable them to practice computational chemistry, even not knowing UNIX command. In this study, e-Chem, one of such educational support systems, is developed by using Liferay portal platform, which is a Java open source more oriented to standard and outstanding in its content management and collaboration function than other web portals. By using this system, even students who are not familiar with computer, are expected to take part in lab classes and save time learning Unix command and also enhance the learning efficiency by using familiar interface.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.2
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• pp.81-89
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• 2009

In this thesis we have developed an algorithm to evaluate each student's level of understanding and find out which subjects they are not good at when they get on-line lectures at a cyber university. This algorithm is based on fuzzy logic using each student's scores adjusted according to the level of difficulty. In addition, we also introduced a "duplex intellectual lecturing system" and an "evaluation method based on the level of understanding." With the duplex intellectual lecturing system students can ask questions on line at a cyber university and under the new evaluation method, there is no need for students to move between classes. As a result of a computer simulation test, the duplex on-line lecturing system has proven to be more effective than the current one-way cyber lecturing system.

• Journal of The Korean Association of Information Education
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• v.11 no.1
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• pp.91-98
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• 2007

Plagiarism is a serious problem in school education due to current technologies such as the internet and word processors. This paper presents how to detect source code plagiarism using similarity based on string comparison methods. The main contribution is to use hierarchical agglomerative clustering technique to classify plagiarism groups, which are then visualized as a dendrogram. Graders can set an empirical threshold to the dendrogram to navigate plagiarism groups. We evaluated the performance of the presented method with a real world data. The result showed the usefulness and applicability of this method.

• The Journal of Korean Association of Computer Education
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• v.7 no.2
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• pp.77-84
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• 2004

In this thesis, We propose the self-directed learning and test-performing abilities assessment method to evaluate the learning and the test-performing abilities in which learners can not only control their own learning abilities for themselves, but also judge objectively learning and test-performing abilities. This method shows the membership degree of learning and test-performing abilities by using both the triangle-type membership function and the fuzzy logic. In addition, it gives the fuzzy grades to each item. The final membership degrees are calculated and the fuzzy grades are decided by the operation and composition of fuzzy relations on the membership degrees of learning and test-performing abilities. In this method, which is applicable to a writing subject for information searchers, learners are asked to analyse the membership degrees of the learning and test-performing abilities and the final fuzzy grades and to adjust a learning process for themselves.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.4
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• pp.815-825
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• 2007

The existing web-based self-directed learning systems are in short for the ability of learning skills assessment. Even worse, hey only give test scores as an indicate for test skills, which is also not a good measure for learning skills assessment and makes it difficult to assess learning skills objectively and to present clear assessment criterion. In this paper, we proposed an improved self-directed learning system using fuzzy logic, which can be controlled by learners themselves and helps to evaluate their on learning process. We also implemented the system on the written examination of Engineer Information Processing. The purposed system lust calculates membership functions of learning tine, learning frequency, testing time, and test score. Using them the final membership functions of learning and test skills are calculated and presented in a graphical, i.e. mon understandable, way to user. The purposed system helps learners to assess their achievement and to plan future schedule, and the survey result on the students used the system also supports that.