• Journal of the Economic Geographical Society of Korea
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• v.15 no.1
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• pp.116-130
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• 2012

This study focuses on analyzing the design industry in creative industry in the context of upbringing growth engine of regional development policy and strategy. This research probe the spatial characteristics and inter-organizational network structure change from 2000 to 2010 using social network analysis(SNA) in terms of structural, spatial and temporal aspects. first, with the statistical data of design industry, this research evaluate spatial distribution and agggglomeration compared with 16 cities and 7metropolitan scales in Korea. Next, the group of density in the knowledge network of design industry explained with the spatial characteristics and inter-organizational network evolution in time series. After considering the government policy and strategy providing as a result of establishing regional innovation center strengthen cooperation among industry-university-research center.

• Spatial Information Research
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• v.23 no.1
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• pp.69-77
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• 2015

The aim of this study is to examine the research trends of global scientific production of Geospatial Information (GI) papers from 1998 to 2013 by using keyword network analysis. This study constructed keyword network model through papers and keywords related to GI research retrieved from the Web of Science DB and performed keyword network analysis such as Degree Centrality, Betweenness Centrality, and Closeness Centrality. The results show that GI has been steadily applied to various fields, and also the research trends of GI techniques could be quantitatively characterized through keyword network analysis. This study result can be applied to establish the policies and the national R&D planning of geospatial information.

• Electronics and Telecommunications Trends
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• v.27 no.6
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• pp.182-196
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• 2012

본고에서는 미래인터넷 환경으로서 사람 사물 공간 간의 새로운 관계망으로서의 만물지능통신 기반 초연결 네트워크(All Things on Ambient Network: ATAN)에 주목한다. ATAN은 네트워크를 구성하는 행위 주체로서 인간과 인간의 소통에서 인간과 사물, 사물과 사물, 공간과 공간으로 확장되어 데이터, 정보 그리고 행동을 초연결하는 시스템의 총체로 본다. 본고에서는 ATAN이 포스트 스마트 사회 인프라로 이행하는 기여 지점에서 인간과 비인간의 의사소통 티핑 포인트(tipping point)로서의 ATAN 싱귤래리티(singularity) 개념이 존재함을 제안한다. 이러한 전제하에서 ATAN 싱귤래리티의 발생 구도를 설정하고, 웹의 과거 현재 미래 고찰을 통해 ATAN 패러다임으로 전개되는 과정을 고찰한다. 또한 주요국의 미래인터넷 전략 분석을 통하여 ATAN으로의 공통 지향성을 추출한다. 이러한 작업을 통해 우리나라의 미래 네트워크의 전략적 콘셉트로서 ATAN 국가전략기조를 제시한다. 마지막으로 첨단 네트워크 기술이 사회변형을 촉진하고 사회가 기술을 인간 중심으로 수용하는 건강한 기술사회 복합체(technology-social complex)를 지향할 것을 강조하였다.

• Journal of the Economic Geographical Society of Korea
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• v.11 no.3
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• pp.492-507
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• 2008

Many classical network analysis methods approach networks in aspatial perspectives. Measuring network reliability and finding critical nodes in particular, the analyses consider only network connection topology ignoring spatial components in the network such as node attributes and edge distances. Using local network autocorrelation measure, this study handles the problem. By quantifying similarity or clustering of individual objects' attributes in space, local autocorrelation measures can indicate significance of individual nodes in a network. As an application, this study analyzed internet backbone networks in the United States using both classical disjoint product method and Getis-Ord local G statistics. In the process, two variables (population size and reliability) were applied as node attributes. The results showed that local network autocorrelation measures could provide local clusters of critical nodes enabling more empirical and realistic analysis particularly when research interests were local network ranges or impacts.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.2
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• pp.196-200
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• 2008

Recently, the query processing algorithm in spatial network database (SNDB) has attracted many interests. However, there is little research on route-based query processing algorithm in SNDB. Since the moving objects moves only in spatial networks, the route-based algorithm is very useful for LBS and Telematics applications. In this paper, we analyze In-Route Nearest Neighbor (IRNN) query, which is an typical one of route-based queries, and propose a new IRNN query processing algorithm with time constraint. In addition, we show from our performance analysis that our IRNN query processing algorithm with time constraint is better on retrieval performance than the existing IRNN query processing one.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.4
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• pp.69-76
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• 2018

The purpose of this study is to propose and verify a spatial network construction method that integrated roads and subway lines to improve the predictability of the urban spatial analysis model. The existing axial map for urban spatial analysis did not reflect the subway line that serves as an important moving space in modern cities. To improve this axial map, proposed a Ground-Underground Spatial Network by integrating the underground spatial network with the axial map. As a result of the integration analysis, the Ground-Underground Spatial Network(GUSN) were similar to the movement frequency. Correlation of GUSN was 0.723, which showed higher explanatory power than correlation coefficient of 0.575 in axial map. The result of this study is expected to be a theoretical basis for constructing spatial network in urban space analysis with subway.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10c
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• pp.56-61
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• 2006

최근 공간 네트워크 데이터베이스를 위한 질의처리 알고리즘에 관한 연구가 많이 진행되어 왔다. 그러나 현재 좌표-기반 질의에 대한 연구는 활발히 진행중인 반면, 경로-기반 질의에 대한 연구는 매우 미흡한 실정이다. 공간 네트워크 데이터베이스에서는 이동객체가 공간 네트워크상에서만 이동하기 때문에 경로-기반 질의의 유용성이 매우 증대되므로, 경로-기반 질의에 대한 효율적인 질의처리 알고리즘 연구가 필수적이다. 따라서 본 논문에서는 경로-기반 질의의 대표적인 방법인 In-Route Nearest Neighbor 질의처리 알고리즘을 분석하여 기존 연구에서 고려하지 않은 시간 및 공간제약을 고려한 경로-기반 질의처리 알고리즘을 설계한다.

• Journal of the Economic Geographical Society of Korea
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• v.18 no.4
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• pp.556-572
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• 2015

Since the late 1990s dualistic spatial structure has been configurated in Icheon ceramic industrial space due to the articulation of transmitted ceramics space rooted from imitating the Goryeo and Joseon ceramics and contemporary ceramics space based on academic ceramic arts. Therefore, the main purpose of this paper is to identify the formation of dualistic space in Icheon by investigating the development paths of ceramic industry in historical perspectives and analyzing inter- and extra-firm relations in Icheon. The main results of this research are as follows. Firstly, the development path of transmitted ceramics has declined gradually, while the development path of contemporary ceramics has been embedded in Icheon region. Secondly, the research pointed out that networks of transmitted ceramics and contemporary ceramics are different in the perspectives of inter-firm and extra-firm relations. Thirdly, the government has played a critical role as a financial and administrative supporter and as a network broker between university and Icheon ceramic firms(mainly with transmitted ceramics) for technological cooperation and collaborative R&D.

• Journal of the Economic Geographical Society of Korea
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• v.12 no.4
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• pp.421-437
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• 2009

China has transformed her strategies for economic development from exogenous development founded on foreign capitals to endogenous development based on enhancing technology innovation capabilities since 2000. More specifically, Chinese business activities have coupled with new institutional settings which enable them to facilitate advanced technology and management methods. As a result, the characteristics of the spatial economy in China are likely to transfer from export-led developmental space to technology-oriented developmental space. In this context, this paper aims to identify the characteristics of technology-oriented space by investigating intra-, inter- and extra-firms relations of Korean FDI firms in Shanghai, China. In terms of intra-firm relations, Korean FDI firms adopted strategies for maximizing business efficiency and effectiveness by transforming their personal networks into formal networks. In terms of inter-firm relations, the distinction of Korean FDI firms' networks has been found in accordance with firm size, industrial sectors, ways of investment etc. Finally, Korean FDI firms has formal networks resulted from institutional involvement, as well as informal (personal) networks based on guanxi (inter-personal relations) in extra-firm relations. Therefore, two types of processes affecting the networks and institutional legacies of the Soviet system can be identified. First is the interaction of institutions and restructuring of pre-existing networks. Second is the insulated institutions and endurance of preexisting networks. And these two governance types have created regional economies which are embedded and over-embedded.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.154-154
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• 2016

우리나라는 급격한 경제 발전과 함께 빠르게 도시화가 진행되었다. 하지만 도시화가 진행됨에 따라 불투수면적의 증가로 인해 도시지역 침수에 대한 위험이 야기되고 있다. 배수관망 체계는 지역 내의 강우를 빠르게 배출하는데 목적을 두고 발전해 왔다. 이러한 노력에도 불구하고 서울시는 2010년, 2011년과 같이 반복적인 침수로 인명과 재산 피해를 겪고 있는 실정이다. 본 연구에서는 2010년과 2011년을 기준으로 침수된 서울시 100개의 유역을 선정하고 깁스모형을 적용하여 침수지역을 중심으로 한 배수관망체계의 특성을 분석하였다. 이와 함께 각 유역의 IA(Impervious Area)와 DCIA(Directly Connected Impervious Area)를 근거로 불투수면적의 공간적 분포 특성도 분석하였다. 깁스모형을 이용한 네트워크 특성과 불투수면적의 공간적 분포 특성을 근거로 침수지역과의 상관관계를 분석하였다. 이를 바탕으로 도시 지역의 배수관망의 효율성을 판단하고 지역 특성에 최적화된 배수관망체계를 구축하는데 도움이 될 것이라 기대된다.