• Journal of Information Management
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• v.35 no.3
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• pp.125-138
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• 2004

The purpose of this study is to propose a hierarchical user interfaces for browsing the knowledge structure of a single document. To generate the hierarchical knowledge structure, hierarchical term clustering and cluster representative term selection were performed with a single thesis in information science field, and the result was applied to design the interfaces which browse a single document hierarchically using multidimensional scaling. The interfaces can be applied to develop the user-friendly information retrieval system.

• Journal of the Korean Society for Library and Information Science
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• v.48 no.1
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• pp.345-367
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• 2014

Public libraries are core organization of knowledge information and culture creation in the knowledge-based society in 21st century. The purpose of this study is to propose a development plan for public library as a user-friendly cultural space that provides service and utilization of efficient knowledge information resources. To achieve this goal, the study carried out a survey targeting 525 users of 21 public libraries members of Jeollanamdo education office. The results identified the perception gap in respect of operation satisfaction, creation of social capital, and area development contribution. This research also proposed an alternative approaches to overcome difficulties.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2007.10a
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• pp.131-139
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• 2007

국토기본법과 국토의 계획 및 이용에 관한 법률은 국토의 지속 가능한 발전을 위한 정책 및 계획을 규정하고 있다. 이를 효율적으로 달성하기 위한 수단으로GIS를 기반으로 공간의사결정 지원체계 구축에 대한 수요가 높아지고 있다. 이는 그 동안 행정업무를 위한 자료관리 중심의 정보화에서 공간자료분석을 기반으로 한 정보화에 대한 새로운 수요라고 할 수도 있다. 그러나 국토공간계획을 지원하기 위한 의사결정지원체계를 성공적으로 구축하기 위해 해결해야 할 많은 과제들이 있다. 본 연구는 국토공간계획을 위한 의사결정지원체계를 구축하는데 장애가 되는 과제를 파악하고, 해결방향을 제시하는데 목적을 두고 있다. 이를 위해 전문가를 대상으로 한 델파이 조사를 실시했다. 본 연구는 공간의사결정지원체계의 설계 및 개발에 영향을 미치는 주요 요인을 중심으로 research questions를 가지고 접근했다. 시스템 설계 관점에서 처리결과에 영향을 미치는 요인으로 입력되는 자료와 지식, 분석처리하는 방법, 인터페이스 등을 중심으로 research question을 설정했다. 시스템 개발과 관련하여 개발도구 확보, 이해관계자 참여 방안, 시스템의 지속성 확보 등을 중심으로 research questions를 설정했다. 마지막은 향후 공간의사결정 지원체계의 연구 및 개발을 효율적으로 수행하기 위한 파트너쉽에 대한 research question이다. 지금까지 국내에서 공간의사결정지원체계 구축과 관련해 기초적인 이론이나 방법론에 대한 연구가 미흡했다. 대부분 외국의 연구 및 개발사례를 소개하는 수준에 불과하다. 특히 공간의사결정지원체계를 구축하거나 운용하는 기반기술인 개발도구에 대한 기술수준이 상당히 미흡하다. 조사결과에서 공개소프트웨어 도입에 대한 필요성 강조가 이를 반증하고 있다. 또한 시민사회의 성숙, 다양한 사회단체 출현 등으로 국토공간계획 과정에 이해관계자 참여정도가 질적 양적으로 높아질 것으로 예상된다. 그러나 이에 대응하기 위한 기술, 기법 등에 대한 연구는 매우 미흡하고 단편적으로 관련 기술을 소개하는 정도이다. 국토공간계획 및 정책과 관련한 다양한 문제해결을 위한 공간의사결정지원체계를 구축하기 위해서 장기간에 걸긴 단계적 접근이 필요하다. 국토공간계획은 우리나라만의 자연 환경 및 인문환경의 특성이 반영되어야 할 것이다. 이를 위해 우리의 개발방법론, 우리의 기술이 개발되어야 하며, 이를 체계적으로 구현할 수 있는 협력체계 구축이 필요하다.

• The Korean Journal of Applied Statistics
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• v.17 no.1
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• pp.13-26
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• 2004

According to economic growth theory, location configuration of business enterprises engaged in specific industries has spatial affinity. In this research we defined industrial concentration index to measure industry agglomeration using the characteristics of dispersion parameter of negative binomial distribution, and used the industrial concentration index to examine aspect of spatial configuration change. We utilized Census on Basic Characteristics of Establishments of 1995 and 2000 to deduce industrral concentration indices of 7 knowledge-based industries and 9 strategy-based industries of Choongbuk Province and analyzed the aspect of spatial configuration change.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.4
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• pp.694-711
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• 2016

This study analyzes the spatial characteristics of knowledge industry which has shown relatively rapid growth in the low-growth economy situation in recent years. In particular, we catch hold of the locational characteristics of the knowledge service industry which occupies the highest ratio by professional-expert jobs favoured by young generations, as well as estimate their occupational employment opportunities. By applying Location Quotient(LQ) and LISA, we reveal the spatial distribution patterns of publishing business, information service business and education service business in the Seoul Metropolitan area, and examine the changes in the spatial patterns during the last ten years. In order to understand the socio-economic factors which explain their locations, we apply the stepwise multiple regression analysis. Furthermore, we predict the changes distribution of Knowledge service industrial employment by applying Markov Chain Model. As the result, we found their clusters at the specific locations, while there is the significant variations in the socio-economic variables related their locations respectively. The related job opportunities of the knowledge service businesses in the Seoul Metropolitan area are predicted steady growth trend for the next four years, even though dull or stagnant trend is expected for other industries. This study provides basic resources to the planning for young generation employment problem.

• Journal of the Korea Computer Graphics Society
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• v.25 no.3
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• pp.43-54
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• 2019

In this paper, we review the applicability of fog screen to implement 'Spatial Augmented Reality' which displays the image on the whole space of real space or in real space by separating display equipment and user, in contrast to the traditional Augmented Reality. Through three exhibitions and one performance, we confirmed t hat the fog screen, which can be passed through, is a suitable material for implementing the Spatial Augment ed Reality. We found that the hologram production was easier than before because of fog screen. Through the questionnaire survey conducted on performers along with the exhibition, we found that only about half of people know what a fog screen is, and about 10% of the total respondents saw the fog screen. In order to investigate the effect of fog screen on the surrounding space, we conducted an experiment to observe the change of humidity according to the time and distance in the Children's Culture Center of the Asian Culture Center. We found that the humidity within a radius of 5m around the fog screen could increase by 2~3%($6,400m^3$ standard). Thus we provided some safety requirement with fog screen when works made of materials vulnerable to moisture such as paint, paper, and wood are exhibited at the same time with fog screen in the exhibition hall.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.40 no.5
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• pp.429-437
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• 2022

Recently, the demand for a QA (Question Answering) system for human-machine communication has increased. Among the QA systems, a closed domain QA system that can handle spatial-related questions is called GeoQA. In this study, a new type of graph database, LPG (Labeled Property Graph) was used to overcome the limitations of the RDF (Resource Description Framework) based database, which was mainly used in the GeoQA field. In addition, GraphQL (Graph Query Language), an API-type query language, is introduced to address the fact that the LPG query language is not standardized and the GeoQA system may depend on specific products. In this study, database was built so that answers could be retrieved when spatial-related questions were entered. Each data was obtained from the national spatial information portal and local data open service. The spatial relationships between each spatial objects were calculated in advance and stored in edge form. The user's questions were first converted to GraphQL through FOL (First Order Logic) format and delivered to the database through the GraphQL server. The LPG used in the experiment is Neo4j, the graph database that currently has the highest market share, and some of the built-in functions and QGIS were used for spatial calculations. As a result of building the system, it was confirmed that the user's question could be transformed, processed through the Apollo GraphQL server, and an appropriate answer could be obtained from the database.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.34 no.1
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• pp.49-55
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• 2006

Two data mining techniques, analysis of variance (ANOVA) and self-organizing map (SOM), are applied to knowledge discovery in aerodynamic design space. These methods make it possible to identify the effect of each design variable on the objective functions. Furthermore, ANOVA shows the effect of interaction between design variables on the objective function and SOM visualizes the trade-off among objective functions. Present methods are applied to the result of the supersonic wing design which includes 72 design variables and 4 objective functions.

• 한국벤처창업학회:학술대회논문집
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• 2022.04a
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• pp.65-71
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• 2022

최근 경제불황 및 실업률 증가, 일자리 창출의 대안으로 창업이 떠오르고 있다. 특히 정부는 혁신적인 인재 육성을 위해 대학 창업교육 및 창업지원의 중요성을 강조하고 있다. 본 연구의 목적은 D대학 학생을 중심으로 대학 창업교육 및 창업지원 중요도 및 성취도 차이를 분석함으로써 요인별 우선순위를 파악하고자 한다. 이를 위해 대학 창업교육 및 창업지원의 질적 성장 및 고도화 방안을 도출하고자 IPA(importance-performance analysis)분석을 이용한 중요도-성취도 차이를 분석하였다. 연구결과는 다음과 같다. 대학 창업교육 및 창업지원의 모든 요소에 대하여 중요도가 성취도보다 높게 나타나 이에 대한 해결방안을 마련할 필요가 있다. 또한 중요도-성취도 매트릭스에서 가장 개선의 우선순위가 높은 요인은 「자금 및 투자지원」, 「창업 공간 및 시설지원」, 「경영자문」, 「특허 및 지식재산 지원」, 「창업현장실습」 순으로 나타났다. 이에 본 연구에서는 수요자 중심의 창업교육 및 지원제도가 구축할 수 있도록 대학 내 자체 창업투자 재원 확보(실행), 대학의 액셀러레이터 역할 및 기능 강화, 학생창업자 입주공간 우선 지원 및 확대, 기술 기반 학생창업자에 대한 지식재산권 보장(지원), 학생들의 수요조사를 반영한 창업교과목 개발 및 보급 등을 제언하고자 한다.

• Journal of Korean Society for Geospatial Information Science
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• v.17 no.1
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• pp.121-129
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• 2009

Today, it is difficult to re-use and share spatial information, because of the explosive growth of heterogeneous information and specific characters of spatial information accumulated by diverse local agency. A spatial analysis of subsurface spatial informa-tion, one of the National Spatial Data Infrastructure, needs related spatial information such as, topographical map, geologic map, underground facility map, etc. However, current methods using standard format or spatial datawarehouse cannot consider a se-mantic hetergenity. In this paper, the layered ontology model which consists of generic concept, measuremnt scale, spatial model, and subsurface spatial information has developed. Also, the current ontology building method pertained to human experts is a expensive and time-consuming process. We have developed the MDA-based metamodel(UML Profile) of ontology that can be a easy under-standing and flexiblity of environment change. The semantic quality of devleoped ontology model has evaluated by reasoning engine, Pellet. We expect to improve a semantic sharing, and strengthen capacities for developing GIS experts system using knowledge representation ability of ontology.