• Proceedings of the Korea Information Processing Society Conference
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• 2004.11a
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• pp.657-660
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• 2004

다양한 구조를 가지는 XML 문서에 대하여 온톨로지를 기반으로 확장한 질의를 인가하면 문서의 구조적 차이를 극복할 수 있으므로 검색의 효과를 높일 수 있다. 그러나 온톨로지만을 고려하여 확장되는 질의들은 대상 문서의 구조에 부적합할 수 있으므로 검색의 효율을 저하시키게 된다. 본 논문은 온톨로지와 대상 XML 문서의 구조인 DTD를 고려하여 온톨로지로부터 불필요한 개념과 속성을 제거하는 온톨로지-DTD 정합 알고리즘을 제안하였으며, 이렇게 정합된 온톨로지를 이용하면 대상 XML 문서에 적합하도록 질의들을 생성하므로 질의의 검색 적중률을 높일 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.91-94
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• 2015

최근 들어 공용 클라우드 서비스의 이용이 크게 증가하였다. 클라우스 서비스는 관리비용이 저렴하고 다양한 디바이스로 접근이 가능한 장점이 있는 반면, 데이터 접근을 통제하기 힘들어 내부정보가 유출되는 등의 보안 위협이 공존한다. 따라서 본 논문은 클라우드 스토리지의 기밀문서 유출 방지를 위해 사후 감시방법을 연구한다. 문서 내 포함된 보안 키워드 개수를 통해 보안지표를 계산하고 이 지표로 기밀문서 여부를 판단한다. 또한, 관리자용 대시보드를 통해 기밀문서가 탐지 되었을 때 백업/삭제 등의 사후처리 기능을 제공한다. 본 감시방법을 통해 클라우드 스토리지 내 기밀문서가 업로드 되는 것을 감시함으로써 기밀문서 유출 위협을 효과적으로 줄일 수 있다.

• Journal of The Korean Association of Information Education
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• v.2 no.2
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• pp.260-268
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• 1998

In this paper, I propose a metric model for measuring complexity of Web documentations which are wrote by HTML and XML. The complexity of Web documentation has effect on documentation understandability which is an important metric in maintenance and reusing of Web documentation. The understandable documents have more effect on WEI. The proposed metric uses the entropy to represent the degree of information flows between Web documentations. The proposed documentation complexity measures the information flows in a Web document based on the information passing relationship between Web document files. I evaluate the proposed metric by using the complexity properties proposed by Weyuker, and measure the document complexity. I show effectiveness of analyzing the correlation between the number of document file and document complexity.

• Journal of the Korea Society of Computer and Information
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• v.11 no.2 s.40
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• pp.15-23
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• 2006

Millions of documents are already on the Internet, and new documents are being formed all the time. This poses a very important problem in the management and querying of documents to classify them on the Internet by the most suitable means. However, most users have been using the document classification method based on a keyword. This method does not classify documents efficiently, and there is a weakness in the category of document that includes meaning. Document classification by a person can be very correct sometimes and often times is required. Therefore, in this paper, We wish to classify documents by using a neural network algorithm and C4.5 algorithms. We used resume data forming by XML for a document classification experiment. The result showed excellent possibilities in the document category. Therefore, We expect an applicable solution for various document classification problems.

• Journal of KIISE:Software and Applications
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• v.29 no.7
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• pp.498-509
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• 2002

As WWW grows at an increasing speed, a classifier targeted at hypertext has become in high demand. While document categorization il quite mature, the issue of utilizing hypertext structure and hyperlinks has been relatively unexplored. In this paper, we propose a practical method for enhancing both the speed and the quality of hypertext categorization using hyerlinks. In comparison against a recently proposed technique that appears to be the only one of the kind, we obtained up to 18.5% of improvement in effectiveness while reducing the processing time dramatically. We attempt to explain through experiments what factors contribute to tile improvement.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.22 no.11
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• pp.2552-2562
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• 1997

This paepr presents a secure transmission system for document image using mixing algorithm. For this, we apply DM and RDM algorithm propoposed before. The transmitter embeds secretly the signature onto secure document, embeds it to non-secure document and transfers it to the receiver. The receiver makes a check of any forgery on the signature and the document. The total amount of data transmitted and the image quallity are about the same to that of the original document. Thus, a third party can not notice the fact that signatures and secure document is embedded on the document.

• Journal of Advanced Navigation Technology
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• v.14 no.2
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• pp.239-246
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• 2010

This paper proposes a new document clustering method using NMF and fuzzy relationship. The proposed method can improve the quality of document clustering because the clustered documents by using fuzzy relation values between semantic features and terms to distinguish well dissimilar documents in clusters, the selected cluster label terms by using semantic features with NMF, which is used in document clustering, can represent an inherent structure of document set better. The experimental results demonstrate that the proposed method achieves better performance than other document clustering methods.

• Convergence Security Journal
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• v.12 no.3
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• pp.45-52
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• 2012

CC does not Contain detailed instructions about evaluation document. So, we must develop document schema to make CC-based evaluation system. In this report, we developed document schema that can be used in CC-based evaluation system. We devloped document schema and DTD that applying Weakest precondition function, reduction rules about amount of document and dependancy analysis document from assurance class within CC. Approach of this study can be applied to develop document and DTD that can be used in evaluation system of software quality.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.499-502
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• 2004

본 논문은 정보검색의 대상이 되는 XML 문서를 효율적으로 선별하기 위해 온톨로지를 기반으로 XML 문서를 여과하였으며, 여과된 XML 문서를 대상으로 문서에 내재한 정보를 효과적으로 검색하도록 XML 질의를 확장하였다. 이를 위해, 온톨로지로부터 포괄적 DTD를 생성하는 알고리즘을 개발하였고, XML 문서의 효과적인 정보 검색을 위해 온톨로지의 개념 구조와 연관 관계를 분석하여 XML 질의를 확장하는 알고리즘을 개발하였다. 제안한 문서 여과와 질의 확장 알고리즘의 효과를 샘플 XML 문서에 적용하였다.

• The Transactions of the Korea Information Processing Society
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• v.4 no.4
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• pp.944-954
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• 1997

This study addreses the design and implrmentation of korean SGML(Standard Generalized Markup Langu-age)editor capable of ggenerating DTD(Document Type Definition)s,which can be used at the same time to gen-erate HTML documents as well] as SGML documents using interactive method.HTML is an appkication of SGML and HTML DTD is defined according to the syntax of SGML.Therefore it is possible to generate HTML documents of any versions by replacing the corresponding DTDs and using the implemented editor.This system has been implemented using GUI such as Motif and UIL(User Interface Language)in X-window system and C-language for common modules of functions.