• Proceedings of the Korea Information Processing Society Conference
• /
• 2005.05a
• /
• pp.1229-1232
• /
• 2005

국내 공공기관에서는 사이버 행정환경의 기밀성, 무결성, 신원확인, 부인방지등을 보장하기 위하여 행정전자서명인증체계(GPKI:Government Public Key Infrastructure)의 구축과 함께 모든 문서를 XML형태로 표준화하여 공공기관간의 문서를 통합하기 위한 시도를 하고 있다. 하지만 행정전자서명인증체계에서 사용하는 공개키기반(PKI)을 연동한 인증체계는 단순한 사용자 인증만을 제공하여, 공공기관의 응용업무 환경에서 요구되는 다양한 사용자의 직위, 직무, 역할정보 등의 관리가 어려우며 XML형태의 공공문서에 대한 상세한 접근제어를 지원하지 못하는 한계점이 있다. 이러한 한계점을 해결하기 위하여 본 논문에서는 공공기관에서 사용하는 인증 및 접근제어 시스템의 가상시나리오를 통하여 보안문제점을 도출하고 분석한 후에 이를 근거로 공공기관의 보안 문제점을 해결할 수 있는 보안기술인 PMI(Privilege Management Infrastructure)와 XACML(eXtensible Access Control Markup Language)을 연동한 접근제어모델을 제안하였다..

• Journal of Digital Contents Society
• /
• v.14 no.4
• /
• pp.513-519
• /
• 2013

In this paper, we provide interfaces according to user application environments and provide tools through web-site that users can create interface to apply a wide range of application environment. HTML5 is used in the creation processing, so users can create various interfaces by dragging mouse and apply it to multimedia, game applications as well as documents by using the ASCII code and key events that are provided in the Android OS. Database of interfaces is stored in HDFS (Hadoop Distributed File System) based on Hadoop for management and users can have their own designed interface or select interfaces through simple login any time. In order to provide interface quickly, HIVE based on Hadoop is used for search and the data is provided in XML file which smart mobile can process quickly.

• Journal of Korean Library and Information Science Society
• /
• v.36 no.1
• /
• pp.415-440
• /
• 2005

This paper analyses meta-data systems for serials in order to provide the fundamental infrastructure for serials-sharing systems based on semantic interoperability. According to the primitive features of serials information, meta-data for serials are classified into 3 main subsystems: serial identification Information, serial bibliographic information and serial holding information. The serial identification information that play the important role of the primary key in library management systems should be refined to accommodate serials with digital formats. Although MARC formats have been commonly used for the description of serial bibliographic information, a new meta-data format for serial bibliographic information that harmonize with the abundance of meta-data elements in MARC and the simplicity of DCMI. For serial holding information, the newly proposed standards such as ANSI/NSIO Z39.50 are adequate to grasp the varieties of serial holding patterns. It should be able to differentiate the level of description by means of the types of serial information services. As the current computing technology generally uses XML for the representation and Process of information, the meta-data system for serials should be based on XML.

• Journal of Korea Multimedia Society
• /
• v.7 no.10
• /
• pp.1452-1463
• /
• 2004

The requirement of automatic video summary is increasing as bi-directional broadcasting contents and various user requests and preferences for the bi -directional broadcast environment are increasing. Automatic video summary is needed for an efficient management and usage of many contents in service provider as well. In this paper, we propose a method to generate a content-based summary of linguistic educational videos automatically. First, shot-boundaries and keyframes are generated from linguistic educational video and then multiple(low-level) visual features are extracted. Next, the semantic parts (Explanation part, Dialog part, Text-based part) of the linguistic educational video are generated using extracted visual features. Lastly the XMI- document describing summary information is made based on HieraTchical Summary architecture oi MPEG-7 MDS (Multimedia I)escription Scheme). Experimental results show that our proposed algorithm provides reasonable performance for automatic summary of linguistic educational videos. We verified that the proposed method is useful ior video summary system to provide various services as well as management of educational contents.