• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.11c
• /
• pp.1403-1406
• /
• 2003

XML이 가지는 다양한 장점을 이용하기 위해, 음악을 XML로 표현하려는 다양한 연구가 계속되고 있다. 그러나, SMDL, MNML, MusicXML과 같은 기존의 연구는 악보상의 정보를 그대로 표현하거나, 전자 음악의 표준인 MIDI 포맷과의 상호교환성을 중심으로 연구되어 왔기 때문에 음악에 대해 구조-내용 기반 복합 검색을 하기에는 부적합하다. 이를 해결하기 위해 본 논문에서는 음악의 대표 선율을 이용한 구조-내용 기반 복합 검색을 위한 XML 스키마를 제안한다. 먼저, 본 논문에서는 사용자가 질의할 가능성이 높은 첫 동기, 절정, 일정 유사도 내에서 반복되는 주제 선율을 해당 음악을 대표하는 선율로서 XML 스키마에 표현하였다. 제안한 XML 스키마에 대해 XML 질의 언어를 이용하여 구조-내용 기반 복합 검색시 전체 선율을 검색하지 않고 대표 선율만을 검색하여 사용자의 응답 시간을 빠르게 할 수 있다.

• International Journal of Contents
• /
• v.3 no.3
• /
• pp.6-14
• /
• 2007

In this paper, we design and implement a XML Repository System(XRS) that exploits the advantages of DBMSs and IRSs. Our scheme uses BRS to support full text indexing and content-based queries efficiently, and ORACLE to store XML documents, multimedia data, DTD and structure information. We design databases to manage XML documents including audio, video, images as well as text. We employ the non-composition model when storing XML documents into ORACLE. We represent structured information as ETID(Element Type Id), SORD(Sibling ORDer) and SSORD(Same Sibling ORDer). ETID is a unique value assigned to each element of DTD. SORD and SSORD represent an order information between sibling nodes and an order information among the sibling nodes with the same element respectively. In order to show superiority of our XRS, we perform various experiments in terms of the document loading time, document extracting time and contents retrieval time. It is shown through experiments that our XRS outperforms the existing XML document management systems. We also show that it supports various types of queries through performance experiments.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.7 no.4
• /
• pp.612-622
• /
• 2003

This paper studied and proposed a XML document storing-and-retrieval framework based on a variant k-ary complete tree and a RDF metadata, which is composed of an effective storing module to store xml documents, a retrieving module to retrieve xml documents, and a connecting module to make this system intemperate in the web environment. In this storing module, DTD independent DOM based decomposition model using a method of addressing unique ill using a variant k-ary complete tree is adopted and is implemented. Query Processing Module includes a XPath query process and a content based retrieval function using word index for content information. To retrieve more exactly data, a structural retrieval using RDF metadata is adopted and implemented. In order to implement effectively XML document storing and retrieval system in the web environment, API using XML-RPC, API using HTTP's GET, PUT, POST and API using SOAP have been adopted and implemented.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.10 no.2
• /
• pp.167-172
• /
• 2010

Recently most of hospitals progress toward setting up computer based medical information system, and there exists medical standard such as HL7 and DICOM to exchange efficiently between systems each other. However, Heterogeneous system built in each hospital gets a different data structure of medical information for patient and also makes it difficult to share information among hospitals. This paper proposes an integrated medical information system which changes existing diverse types of medical information to a unified structure and combines into one management model using XML from hospital specific medical information system. Thus, our proposed system makes it possible to get an effectively information share across hospitals without considering the internal system structure of other hospital. As a result, Hospitals provide a efficient and correct diagnosis, saving time and cost to patients.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.29 no.4C
• /
• pp.570-580
• /
• 2004

Due to development of internet and mobile communication, M-commerce applications that utilize the digital signature are widely used these days. The mobile environment is weaker than the wired internet environment. Thus, it is highly required to systematically analyze the effect of processing the digital document and the digital signature algorithm, and low bandwidth of the mobile network on the system performance. In this paper, we have constructed the mobile contract system which has the XML based digital contract and the RSA signature algorithm as the test system. And we have derived the performance parameters and then measured in detail the runtime performance of the mobile digital signature system with the Compaq iPAQ 3850 PDA and CDMA 2000 1x mobile network.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.9 no.8
• /
• pp.1762-1767
• /
• 2005

PKI provides good resolutions for the authentication of user in the situation not to meet each other, but it is not enough to provide the resolution of authorization in distributed computing environments. Especially, we offer a variety forms of the user Authentication, the Integrity and a security service of the Non-Repudiation, but an authorization Policy, because of the complexity with a lot of information, using m understandable XML, makes a simple and easy certificate to read, and we get the information from DOM fee and do a XML analysis and stardardized-method usage easily In this paper, we provide the AAS model being able to use with the solution of the distributed users' authorization, and we implement an authorization policy module, using XML. in the Linux-based Apache Web server.

• Proceedings of the Korea Contents Association Conference
• /
• 2011.05a
• /
• pp.7-8
• /
• 2011

최근 무선통신의 발전과 스마트 폰 사용자의 급격한 증가로 인하여 멀티미디어 콘텐츠에 대한 관심과 요구가 급속히 증대되고 있다. 이를 수용하기 위한 이동통신 시스템 환경 역시 급속도로 변하고 있으며, 그중 LTE 시스템에 대한 관심과 개발이 진행되고 있는 상황이다. 이에 따라 개발단계부터 안정화단계까지 해당 시스템의 프로토콜 검증과 분석을 위한 분석기의 필요성이 대두되고 있다. 본 논문에서는 LTE 프로토콜과 연동 메시지를 XML 메타데이터로 기술한 에이전트-서버 구조의 프로토콜 분석기를 제안한다. 제안하는 프로토콜 분석기는 LTE 시스템에 최적화된 프로토콜 분석이 가능하고 연동 규격 변경시에도 XML 메타데이터 수정만으로 적용가능하다.

• Korean Management Science Review
• /
• v.17 no.3
• /
• pp.147-160
• /
• 2000

These days, a modeling tool or environment has to know about the others on the market and build bridges to them with which their customers insist on sharing models and data. When it is based on a closed architecture, a tangle of import/export point translators is required. Using an exchange standard, we can design an open architecture for the interchange of models and data. XML(Extensible Markup Language) provides a framework for describing the syntax for creating and exchanging data structures. The explosive growth of XML-based business proposals and standards reflects the urgent requirements and its strength. This paper proposes an XML-based language for sharing decision models within the MSOR/DSS community. The language is able to allow applications and on-line analytic processing tools to models obtained from multiple sources without having to deal with individual differences between those sources. It is expected to be a medium for B2B integration by supporting flexible interchange of decision models.

• Journal of KIISE:Computing Practices and Letters
• /
• v.8 no.5
• /
• pp.598-606
• /
• 2002

We suggest a distributed communication and management methodology using PC to PC Query multicasting strategy for efficient management of medical images produced by DICOM(Digital Imaging and Communications in Medicine) Modalities. It is absolutely necessary to reduce strict degradation of PACS system due to large sire of medical images and their very high transport rates. DICOM PC to PC Component is composed of a Service Manager to execute requested queries, a Communication Manager to take charge of file transmission, and a DICOM Manager to manage stored data and system behavior Each Manager itself is a component to search for requested file by interaction or to transmit the file to other PCs. Distributed management and transformation of medical information based on PC to PC Query multicasting methodology will enhance performance of central server and network capacity, reducing overload on both. We organize three major components for system operation. Each component is implemented as Agent. Communication between agents uses XML encoded Agent Communication Language.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.11 no.5
• /
• pp.11-17
• /
• 2011

In this paper, we propose ER_Modeler, which is a logical database design tool based on entity-relationship model. ER_Modeler provides the entity-relationship diagrams to be built graphically on windows and generates the graphs into the appropriate data definition language for creating relational database tables. Furthermore, ER_Modeler provides the import/export functions using XML to guarantee the interoperability with ERwin which is one of the most popular commercial products.