• Proceedings of the Korean Society for Information Management Conference
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• 2013.08a
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• pp.101-104
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• 2013

본 연구에서는 웹 환경에 적합한 서지 기술을 위해 LC에서 개발한 BIBFRAME을 분석하고, BIBFRAME이 개방형 서지 데이터의 생성에 적합한지를 검토하였다. 그리고 BIBFRAME의 등장 배경 및 특징을 FRBR 모형과 비교하였다. 그 결과 BIBRAME은 1)서지 객체의 지적 내용과 물리 매체를 구분하고 있었는데, FRBR의 제1그룹보다 단순한 구조를 지니고 있었다. 2) 인명전거와 주제전거를 포함하는 넓은 개념으로 전거를 정의하고 있었으며, 서지데이터 작성자의 관점과 이용자의 관점을 함께 고려하였다. 3) 다양한 외부 데이터와의 연계 및 개별 도서관에 특화된 데이터를 추가할 수 있는 주석 개념을 도입하였다. BIBFRAME은 MARC 레코드에서 변환하거나 직접적으로 서지데이터를 작성하는 방안이 모두 가능하며, 웹 환경에 적합하다고 판단된다.

• Journal of the HCI Society of Korea
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• v.10 no.1
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• pp.5-17
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• 2015

Nowadays various public data have been serviced to the public. Through the opening of public data, the transparency and effectiveness of public policy developed by governments are increased and users can lead to the growth of industry related to public data. Since end-users of using public data are citizens, it is very important for everyone to figure out the meaning of public data using proper visualization techniques. In this work, to indicate the significance of widespread public data, we consider UN voting record as public data in which many people may be interested. In general, it has high utilization value by diplomatic and educational purposes, and is available in public. If we use proper data mining and visualization algorithms, we can get an insight regarding the voting patterns of UN members. To visualize, it is necessary to measure the voting similarity values among UN members and then a social graph is created by the similarity values. Next, using a graph layout algorithm, the social graph is rendered on the screen. If we use the existing method for visualizing the social graph, it is hard to understand the meaning of the social graph because the graph is usually dense. To improve the weak point of the existing social graph visualization, we propose Friend-Matching, Friend-Rival Matching, and Bubble Heap algorithms in this paper. We also validate that our proposed algorithms can improve the quality of visualizing social graphs displayed by the existing method. Finally, our prototype system has been released in http://datalab.kunsan.ac.kr/politiz/un/. Please, see if it is useful in the aspect of public data utilization.

• Informatization Policy
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• v.27 no.4
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• pp.24-46
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• 2020

This study proposes a way to timely forecast open government data (OGD) demand(i.e., OGD requests, search queries, etc.) by using keyword network analysis. According to the analysis results, most of the OGD belonging to the high-demand topics are provided by the domestic OGD portal(data.go.kr), while the OGD related to users' actual needs predicted through topic association analysis are rarely provided. This is because, when providing(or selecting) OGD, relevance to OGD topics takes precedence over relevance to users' OGD requests. The proposed keyword network analysis framework is expected to contribute to the establishment of OGD policies for public institutions in the future as it can quickly and easily forecast users' demand based on actual OGD requests.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.568-574
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• 2013

In recent years, IT companies offer various cloud services using hardware-based technologies or software-based technologies. User can access these cloud services without the constraints of location or devices. The technologies are virtualization, provisioning, and big data processing. However, security incidents are constantly occurring even with these techniques. Thus, many companies build and operate private cloud service to prevent the leak of critical data. If virtual environment are different according to user permission, many system are needed, and user should login several virtual system to execute an program. In this paper, I suggest the access control method for application software on virtual operating system using the Open Authentication protocol in the Cloud system.

• Journal of Korean Society for Geospatial Information Science
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• v.13 no.4 s.34
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• pp.75-81
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• 2005

This study intended to show the way of evolving 'National Geographic Information Clearinghouse' to 'National Integrated Geospatial Portal'. For this purpose we have analyzed Geospatial One-Stop Portal in the US and then suggested future model of National Geographic Information Clearinghouse. The Integrated Geospatial Portal model is based on the Reference Model for Open Distributed Processing(RM-ODP) which is an international model for information distribution and sharing. The Integrated Geospatial Portal architecture consists of the data layer, middle-ware, presentation layer. It will help users to determine their fitness for nation wide GIS application and provide tools for accessing, visualizing, or ordering various geospatial data.

• International Area Studies Review
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• v.12 no.3
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• pp.25-47
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• 2008

This paper tries to explore the impact of economic globalization on social capital accumulation. To investigate direct effect, we build a model and derive a proposition which can explain the relative decline in social capital brought about by market expansion. Besides direct effect, we also explore channel effect through democracy, government size, education attainment, and inequality. We estimate direct and channel effect of globalization using cross section of 65 countries data time period 1980-1999 using three-stage least squares(3SLS). Results are in line with predictions and clearly support that globalization significantly and negatively affects social capital accumulation. Channel effect also shows that globalization has a negative effect through aggravating income inequality while it has a positive effect through higher education attainment, higher level of democracy and larger government spending. Such a net negative channel effect reinforces our prediction. As a robustness check we estimate other sets of data and the result strongly supports our theory.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06c
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• pp.159-164
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• 2008

최근 많이 주목을 받고 있는 웹 2.0은 사용자의 참여, 개방, 네트워크 효과에 기반하여 누구나 데이터를 생산하고 공유할 수 있는 사용자 중심의 인터넷 환경이다. openAPI는 웹 2.0의 근본 개념인 데이터의 개방 및 공유를 구현할 수 있는 핵심 기술로 포털은 자신의 서비스를 공개한다. 하지만 기존의 웹서비스와 openAPI 검색은 효율적인 검색 방법을 제공하지 않았다. 본 논문에서는 Lee[1]의 논문에서 제공하는 효율적인 웹서비스 검색 방법을 이용하여 검색 엔진을 개발하였다. 하지만 이 연구는 웹서비스와 유사한 구조를 가지는 openAPI를 수용하지 못한다. 따라서 본 논문에서는 openAPI의 정의 및 사용법이 웹서비스와 유사하다는 점을 활용하여 openAPI의 효과적인 검색을 위한 검색기법을 개발하였다. 이러한 검색기법은 사용자가 키워드를 입력하여 키워드 기반 검색을 통해 원하는 서비스를 찾아주고, 매쉬업 서비스나 다른 openAPI와의 조합(Composition)을 위해 템플릿 기반 검색을 통해 효과적인 검색을 제공해준다.

• Journal of the Korean Association of Geographic Information Studies
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• v.7 no.4
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• pp.119-132
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• 2004

As geographic object is consisted of 3-dimensional, it must be appropriated use the 3-dimensional coordinate system to express for exact representation. To define 3-dimensional+temporal object model we extended 3-dimensional space and valid time from object model of OpenGIS consortium that is limited to 2-dimensional space. This methodology guarantees compatibility with other systems to construct with the open model. Also, it permitted administration for two kinds of object by considering both objects whose position and shape changes discretely over time and objects whose position changes continuously. 3-dimensional+temporal object model was implemented by 3-dimensional+temporal object component using OLE/COM techniques. The interfaces of the component defined based on 3-dimensional+temporal object model. To use this component, we implement the data consumer for 3-dimensional+temporal data.

• Journal of Broadcast Engineering
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• v.11 no.3 s.32
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• pp.276-283
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• 2006

This paper analyzes metadata workflow from creation to browsing, and discusses metadata authoring and browsing technology. Unlike usual multimedia authoring, broadcast metadata authoring means metadata editing synchronized with video. In order to make practical application of other systems, the result is in XML or MXF(Material eXchange Format) based on common metadata scheme. The MXF Browser developed with the consideration of broadcast metadata that is time-synchronized with AV content provides not only metadata authoring capability but also advanced content browsing services such as summary playback and highlight browsing based on metadata multi-track.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1129-1132
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• 2000

최근 인터넷 수요의 증가로 통신망에서 음성, 영상 및 데이터(data)를 복합적으로 지원할 수 있는 멀티서비스(multiservice)의 교환 기술이 필수적이다. 또한 망 사업자들이 여러 벤더(vendor)들로부터 최적의 장비를 선택하여 망을 구축할 수 있도록 통신 장비들의 상호 운용성을 지원하는 개방형 구조의 망 및 스위치 시스템(switch system)을 정의하는 작업이 필요하다. 페트리 넷(Petri Nets)은 시스템(system)을 분석하기 위한 도구로서, 시스템은 페트리 넷 이론에 의해 시스템의 수학적 표현인 페트리 넷으로 설계될 수 있다. CPN(Colored Petri Nets)은 페트리넷의 확장형으로서, 토근(token)에 칼라를 부여하여 다양한 특성을 지닌 시스템을 표현하기에 적합하다. Design/CPN은 CPN의 사용을 지원하는 소프트웨어 패키지(software package)이다. 본 논문에서는 개방형 멀티서비스 교환 시스템의 핵심으로 스위치와 제어기(Controller) 사이의 표준 프로토콜인 GSMP(General Switch Management Protocol) 프로토콜을 Design/CPN 으로 변환하고, 이로부터 시험열을 생성한다.