• Journal of the Korean Society for information Management
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• v.20 no.3
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• pp.241-259
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• 2003

The Basic Semantic Register(BSR) is and official ISO register designed for interoperability among eBusiness and EDI systems. The entities registered in the current BSR are not defined in a machine-understandable way, which renders automatic extraction of structural and relationship information from the register impossible. The purpose of this study is to offer a framework for designing an ontology that can provide semantic interoperability among BSR-based systems by defining data structures and relationships with RDF and OWL, similar meaning by the 'equivalentClass' construct in OWL, the hierachical relationships among classes by the 'subClassOf' construct in RDF schema, definition of any entities in BSR by the 'label' construct in RDF schema, specification of usage guidelines by the 'comment' construct in RDF schema, assignment of classes to BSU's by the 'domain' construct in RDF schema, specification of data types of BSU's by the 'range' construct in RDF schema. Hierarchical relationships among properties in BSR can be expressed using the 'subPropertyOf' in RDF schema. Progress in semantic interoperability can be expected among BSR-based systems through applications of semantic web technology suggested in this study.

• The KIPS Transactions:PartD
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• v.12D no.1 s.97
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• pp.135-150
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• 2005

In this paper, we propose an integrated information retrieval system for distributed multiple KRISTAL-2002 systems by using the metadata information. This system integrates current systems for different areas or systems for the same area with the different schemas so that the users can get the answers by once from the whole systems. The proposed system composes of the Source Server Manager(SSM) supporting the mapping between the integrated metadata database and source server, the Integrated Metadata Manager(ISM) for registering and managing the metadata and schema mapping, the Distributed Query Processor (DQP) for processing the user query into the source server query, the Distributed Data Set Integrated Manager(DDSIM) for transforming the total retrieval results by merging to the HTML format, and the integrated retrieval engine for managing the query results. It is assumed that the integrated metadata follows ISO/IEC 11179 metadata registration procedure with the metadata registry system which is a subsystem of the proposed system. There are two kinds of queries for users; the basic query and the detailed query. The users may select the databases or organizations for results by their own choices before giving the queries. The proposed system has been developed over KRISTAL-2002 systems with $Visual C^{++}\;and\;C^{++}-CGI$ and tested and verified with the six database systems.

• Journal of Korean Library and Information Science Society
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• v.36 no.3
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• pp.109-136
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• 2005

This paper describes the major components of ISO/IEC 11179 metadata registry (MDR) standard designed to promote data interoperability between systems, explains and discusses semantic web technology and Web ontology languages initiated by W3C that can be employed to further enhance data interoperability, and finally proposes a framework for a new RDF/OWL-based MDR to convert from the current human-readable MDR to machine-readable MDR. If the new MDR is successful, we might be able to offer a better customized information service to users. The future research will be concerned with evaluating objectively the effectiveness of machine-readable MDR in meeting the needs of real users.

• Journal of Digital Contents Society
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• v.8 no.4
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• pp.509-519
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• 2007

For Knowledge Information Governance, integration search mechanism of Knowledge Information is required in various industries. But when Knowledge Information system constructs in each professional field, it developed and used its own metadata format. Accordingly, if distributed information system searches using metadata, heterogeneous problems are occurred among metadata. For integration search, it needs a consistency management of metadata. Therefore, this paper defines a standard metadata that represent standard metadata as surveying a used metadata in each field systems. Also, we propose a metadata registry integration framework for Knowledge Information Governance. It enables an integration search service without a metadata modification of existing system. Through the proposed framework, it can registries and manages efficiently the existing metadata. Also, it enables a semantically extended search using semantic relation between metadata.

• Journal of the Korean Association of Geographic Information Studies
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• v.10 no.1
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• pp.183-193
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• 2007

Geotechnical Information Database Project was began by Ministry of Construction Transport at the 1999, because many people need a sharing and reusing the geotechnical report in construction process. In the beginning, target was report of national highway construction, the whole of country has been target on since the 2005. Today, the 60,581 number of geotechnical data(counted by boring number) is maintained. In this study, Geotechnical Information Distribute System(GIDS) was developed, in order to improve practical use and to be connected to National Geographic Information Center. and program to be applicable to construction was suggested. GIDS is able to search/download geotechnical report with digital map by internet. This system is consisted of geotechnical data and metadata editor, registration tool, and web system. We expect that GIDS make a effect to improve geotechnical data management and to be use in all part of construction process.

• Korean Journal of Remote Sensing
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• v.35 no.6_1
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• pp.945-957
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• 2019

In this study, we propose a coarse to fine image registration method for eliminating geometric error between images over agricultural areas acquired using Unmanned Aerial Vehicle (UAV). First, images of agricultural area were acquired using UAV, and then orthophotos were generated. In order to reduce the probability of extracting outliers that cause errors during image registration, the region of interest is selected by using the metadata of the generated orthophotos to minimize the search area. The coarse image registration was performed based on the extracted tie-points using the Speeded-Up Robust Features (SURF) method to eliminate geometric error between orthophotos. Subsequently, the fine image registration was performed using tie-points extracted through the Mutual Information (MI) method, which can extract the tie-points effectively even if there is no outstanding spatial properties or structure in the image. To verify the effectiveness and superiority of the proposed method, a comparison analysis using 8 orthophotos was performed with the results of image registration using the SURF method and the MI method individually. As a result, we confirmed that the proposed method can effectively eliminated the geometric errors between the orthophotos.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.333-336
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• 2011

최근 전 세계적으로 소셜 네트워크 서비스의 사용자가 많이 증가하면서 많은 사람들이 소셜 네트워크 서비스를 이용하고 있다. 그리고 소셜 네트워크 서비스를 사용하는 사용자들은 이를 이용하여 많은 정보를 공유하고 있다. 본 논문에서는 소셜 네트워크 서비스 사용자들이 공유하는 정보 중 음악과 관련된 정보와 개방형 API 를 이용하여 MP3 파일의 메타데이터인 ID3 태그 정보를 검색한다. 검색된 결과와 소셜 네트워크 서비스 사용자 정보를 이용하여 ID3 태그 온톨로지를 생성하고 생성된 온톨로지와 온톨로지 추론기를 사용하여 음악과 관련된 다양한 순위 분석 결과와 음악 및 사용자 추천 서비스를 사용자들에게 제공하기 위한 시스템의 설계를 보인다. 본 논문에서 제안한 시스템은 소셜 네트워크 서비스에 실시간으로 등록되는 글을 이용하기 때문에 최근 음악 트렌드를 쉽게 반영한다. 또한 순위 분석을 위해 수동적으로 자료를 수집하는데 들어가는 시간적 비용을 줄여준다. 그리고 제안한 시스템을 사용하여 제공된 정보는 음악 관련 산업에서 마케팅과 사업 전략자료 등 다양한 형태로 활용이 가능하다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.264-267
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• 2007

인터넷 사이트가 증가하면서 서비스 제공자는 사용자의 요구나 행동패턴을 파악하기 위하여 웹 마이닝 기법을 활용한다. 하지만 서버에 저장된 웹 로그 정보를 활용한 마이닝 기법은 전처리 과정에 많은 노력이 필요하고 사용자의 행동패턴이나 요구를 정확하게 파악하는데 한계가 있다. 이를 극복하기 위해 본 논문에서는 사용자 생성 로그정보를 이용한 방법을 제안한다. 제안 방법은 기존 서버에 저장되는 로그파일이 아닌 사용자의 행동에 의해 웹 페이지가 로딩될 때 마다 웹 마이닝에 필요한 정보를 수집하여 DB 에 저장하는 방법을 사용하였다. 이때 기존 로그파일에 로딩시간과 조회시간, 파라메타 정보를 추가하여 보다 사실적으로 사용자의 행동패턴을 파악하고자 하였다. 이렇게 생성된 로그파일을 기 등록된 메뉴정보, 쿼리정보와 조합하면 웹 마이닝에 필수적인 데이터정제, 사용자식별, 세션식별, 트랜잭션 식별등 전처리 과정의 효율성을 향상시키고 사용자의 행동패턴파악을 위한 정보 수집을 용이하게 해준다.