• Title/Summary/Keyword: local centrality

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The Spatial Characteristics and Types of Municipal Mergers in Japan : Focused on the Tokyo Metropolitan Area (일본 행정구역 개편의 공간특성과 유형 - 수도권 지역을 중심으로 -)

  • Cho, A-Ra
    • Journal of the Korean association of regional geographers
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    • v.16 no.6
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    • pp.653-672
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    • 2010
  • This study aimed to examine the characteristics and types of reformation of local administrative districts in a metropolitan area, focused on the experiences of Japan, where municipal mergers were carried out extensively over the last ten years. Local administrative districts substantially have spatial characteristics. Therefore, the reformation of local administrative districts should be followed by a detailed analysis of the characteristics of the local area. Unlike other regions, the metropolitan area of Japan shows discriminative characteristics of finance, population and centrality. In addition, there are many types of regional context within a metropolitan area. These could be categorized by finance, population, centrality and basic industry. In conclusion, I revealed that municipal mergers could be categorized by their background and process and many issues were contained in each category. It had a meaning that municipal mergers had characteristics that expanded the regional inequality. Therefore, different approaches considering regional characteristics would be required for a municipal merger to be a useful way for regional development.

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Evaluation of Accessibility to Elementary and Secondary Educational Facilities on Village Level in Rural Areas (농촌지역 초·중등 교육시설에 대한 마을단위 접근성 평가)

  • Kim, Solhee;Kim, Taegon;Suh, Kyo
    • Journal of Korean Society of Rural Planning
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    • v.23 no.3
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    • pp.121-131
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    • 2017
  • Although the educational facility are an important considerations on a social equity standpoint, educational environment in rural areas has been continuously deteriorated by numerous social problems such as decreasing birth rate and increasing of local school closing. The purpose of this study is to evaluate the accessibility of educational environment in rural areas on village level. First, we evaluate physical accessibility based on legally defined commuting distance. Second, the implication of village population of potential accessibility is analyzed. Lastly, the facility centrality index of each village is estimated for assessing the relations of educational accessibility. The main results of this study are as follows; (1) The accessibility of most villages in Pyeongchang-gun is vulnerable that 81.10% for elementary school, 73.17% for middle school, and 82.32% for high school, respectively; (2) The average commuting distance per student considering estimated number of students for each educational facilities indicated 2.75km for elementary school, 4.37km for middle school, and 5.79km for high school; (3) the facility centrality index is highly correlated to educational facilities but not to village population.

A Study on Trends Related to Boryeong Mud Festival Using Tourism Big Data Analysis (관광 빅데이터 분석을 활용한 보령머드축제 관련 동향 탐색 연구)

  • Han Jangheon
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.19 no.3
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    • pp.165-175
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    • 2023
  • Boryeong Mud Festival has become a representative local festival that both domestic and foreign tourists can enjoy together. In addition, it is one of the usual hands-on marine festivals in Korea that can be enjoyed with one mind at the Boryeong Mud Festival, regardless of race, age, and language. This study explored the overall perception and trends of the Boryeong Mud Festival using big data extracted online from the Boryeong Mud Festival. First, keywords such as Chungnam, hosting, summer, reporter, experience, opening ceremony, performance, operation, news, tourist, opening, event, and festival were frequently exposed online. Second, due to centrality analysis, the centrality of festival experience programs and performances, opening ceremonies, and Boryeong mayor was high. Third, due to the CONCOR analysis, five clusters of meaningful keywords related to the Boryeong Mud Festival were formed.

Taxonomy Induction from Wikidata using Directed Acyclic Graph's Centrality (방향 비순환 그래프의 중심성을 이용한 위키데이터 기반 분류체계 구축)

  • Cheon, Hee-Seon;Kim, Hyun-Ho;Kang, Inho
    • Annual Conference on Human and Language Technology
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    • 2021.10a
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    • pp.582-587
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    • 2021
  • 한국어 통합 지식베이스를 생성하기 위해 필수적인 분류체계(taxonomy)를 구축하는 방식을 제안한다. 위키데이터를 기반으로 분류 후보군을 추출하고, 상하위 관계를 통해 방향 비순환 그래프(Directed Acyclic Graph)를 구성한 뒤, 국부적 도달 중심성(local reaching centrality) 등의 정보를 활용하여 정제함으로써 246 개의 분류와 314 개의 상하위 관계를 갖는 분류체계를 생성한다. 워드넷(WordNet), 디비피디아(DBpedia) 등 기존 링크드 오픈 데이터의 분류체계 대비 깊이 있는 계층 구조를 나타내며, 다중 상위 분류를 지닐 수 있는 비트리(non-tree) 구조를 지닌다. 또한, 위키데이터 속성에 기반하여 위키데이터 정보가 있는 인스턴스(instance)에 자동으로 분류를 부여할 수 있으며, 해당 방식으로 실험한 결과 99.83%의 분류 할당 커버리지(coverage) 및 99.81%의 분류 예측 정확도(accuracy)를 나타냈다.

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Analysis of Domestic SNA-based Governance Study Trends (소셜네트워크분석을 통한 국내 거버넌스 연구 동향 분석)

  • Kim, Na-Rang;Choi, Hyung-Rim;Lee, Taihun
    • Journal of Digital Convergence
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    • v.16 no.7
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    • pp.35-45
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    • 2018
  • Research on the establishment of new governance aimed at efficient policy planning and the implementation thereof by the government has been conducted in response to social changes. Nonetheless, governance is comprehensive and encompasses different meanings; it takes various forms in the process of its actual application. Therefore, systematic classification of research on governance and analysis on its research trend are required. Accordingly, three researchers who majored in policy sciences, business informatics, and library and information science, respectively, searched for theses related to governance published since 2016 from Research Information Sharing Service and conducted a social network analysis (SNA) on them. According to their research results, the main research topics were largely classified into collaborative governance and local governance. Keywords throughout the topics included network, participation, conflict, and trust in line with the characteristics of governance. Representative subjects of governance included education, urban regeneration, and the environment. Further, measurement of betweenness centrality showed local governance was a main topic for convergent research. This study will lead to a greater understanding of research on governance and help activate such research. One limitation of this study is that it analyzed only theses with the keywords but not all theses on governance. Follow-up research should analyze all theses on governance and statistically verify them with SNA indexes.

Analyzing the Network of Academic Disciplines with Journal Contributions of Korean Researchers (연구자의 투고 학술지 현황에 근거한 국내 학문분야 네트워크 분석)

  • Lee, Jae-Yun
    • Journal of the Korean Society for information Management
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    • v.25 no.4
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    • pp.327-345
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    • 2008
  • The main purposes of this study are to construct a Korean science network from journal contributions data of Korean researchers, and to analyze the structure and characteristics of the network. First of all, the association matrix of 140 scholarly domains are calculated based on the number of contributions in common journals, and then the Pathfinder network algorithm is applied to those matrix. The resulting network has several hubs such as 'Biology', 'Korean Language & Linguistics', 'Physics', etc. The entropy formula and several centrality measures for the weighted networks are adopted to identify the centralities and interdisciplinarity of each scholarly domain. In particular, the date hubs, which have several weak links, are successively distinguished by local and global triangle betweenness centrality measures.

A Study on the Improvement of Planning and Monitoring for the Rural Center Village Development Project (농촌중심지 마을만들기를 위한 계획수립과 모니터링 개선 방안)

  • Kang, Sin-Gil;Choi, Young-Wan;Kim, Keun-Ho;Kim, Young-Joo
    • Journal of Korean Society of Rural Planning
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    • v.24 no.3
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    • pp.117-125
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    • 2018
  • After it was reorganized as the rural center revitalization project recently, there is an opinion that the nature of the project was changed to solve long-time aspired projects of some districts unlike various projects according to the previous project purposes. Therefore, this study analyzes the current status of revitalization project plans and operation monitoring to make rural center villages, establishes plans that can be applied to the rural center village revitalization project and suggests the improvement plans for monitoring. With the necessity of connectivity with centrality analysis for long-term and sustainable growth of the rural center revitalization project, the analysis on the 8 districts' centrality analysis and the function of the master plan were compared and analyzed, but there is not enough interrelation. Regarding the consulting methods for weak districts to activate facility operation after the project is implemented, the field consulting performed by the collaboration of Gyeongsangnam-do government, Gyeongnam Rural Revitalization Support Center and Gyeongnam branch of Korea Rural Community Corporation shows 87.6% of satisfaction level, which indicates it is the most effective. Based on the above results, it is necessary to reinforce the methods on resident demand survey, dimension and the reflection process of the project when preliminary plans are established for effective implementation of the rural center village revitalization project. It is also necessary to revise relevant standards not to change preliminary plans excessively during the master plan establishment process, and to oblige preliminary investigation of experts. The joint monitoring and consulting systems of experts and local governments should be applied from the establishment stage of the master plan, so that it can be sustainable rural center village revitalization project.

Domain Analysis on Electrical Engineering in Korea by Author Bibliographic Coupling Analysis (저자서지결합분석에 의한 국내 전기공학 분야 지적구조에 관한 연구)

  • Byun, Ji-Hye;Chung, Eun-Kyung
    • Journal of Information Management
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    • v.42 no.4
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    • pp.75-94
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    • 2011
  • The purpose of this study is to analyze the domain on the field of Electrical Engineering in Korea by the author bibliographic coupling analysis. The data set contains a total of 2,157 articles from two core journals with 23,411 citation data from 2005 to 2009 published in two prestigious journals. In order to achieve the purpose of this study, MDS analysis, clustering analysis and network analysis were used to examine core subject areas. In addition, the centrality analysis in the weighted networks was used to explore the key authors in this field such as the top global centrality authors and the top local centrality authors. The findings of this study can be utilized to guide the current research trend and author network for collection development and information services in the field of Electrical Engineering.

A Keyword Network Analysis on Health Disparity in Korea: Focusing on News and its application to Physical Education

  • Kim, Woo-Kyung
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.3
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    • pp.143-150
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    • 2019
  • This study aimed to analyze the keyword related to Health Disparity in Korea through the method of keyword network analysis and to establish a basic database for suggesting ideas for prospective studies in physical education. To achieve the goal, this study crawled co-occured keyword with 'health' and 'disparity' from news casted in 20 different channels. The duration of the news was 3 months, from September 11th, 2018 to December 11th. The results are as follows. First, among the news during recent 3 months, there were 1,383 keyword related to health disparity and this study selected 173 keyword which had co-occured over 3 times. Second, the inclusiveness of the network was 97.674% and the density was .038. Third, analyzing news related to health disparity, 'mortality' was the most co-occured keyword and 'disparity', 'reinforcement', 'the most', 'health', '6 times', 'Seoul', 'half', 'medicine', and 'local' were shown similarly. And common keyword in 4 centrality were 13 keyword. Lastly, by analyzing eigenvector centrality, significantly different result has shown. 'Disparity' was the most co-occured keyword. Based on this result, this study showed the necessity for reinforcing the public physical education in public education system in Korea. In order to achieve it, the field of physical education must look beyond present elite-focused physical education to public physical activity.

Online Network Analysis of the Impact of Local Market-based Communities on Regional Revitalization (시골장터 기반 로컬 커뮤니티가 지역활성화에 미치는 영향에 대한 온라인 네트워크 분석)

  • Park, Jeong Sun;Park, Sang Hyeok;Oh, Seung Hee
    • The Journal of Information Systems
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    • v.33 no.1
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    • pp.45-68
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    • 2024
  • Purpose This paper examines the role of local market-based communities in driving regional revitalization, using detailed analysis of online networks. We aim to dissect a local community's communication network, highlighting members with high engagement levels and exploring their characteristics. Our goal is to identify the conditions that allow local community networks to grow independently and to demonstrate how the activation of these networks contributes to regional revitalization. Design/methodology/approach We employ a mixed-methods approach, combining social network analysis with statistical techniques to investigate the structure of online communication networks. Specifically, we use ANOVA to determine the statistical significance of our findings, ensuring their reliability. To complement our quantitative data, we include qualitative insights from interviews, adding depth and context to our analysis. Findings Our results show that individuals with high centrality in the online network are crucial for maintaining active local communities. We find that leveraging local resources to create a supportive and adaptable environment is essential for the communities' sustainability and expansion. Importantly, our research draws a direct connection between the vitality of local community networks and the broader process of regional revitalization. We argue that energizing local communities is an effective way to address the risk of regional decline. By integrating quantitative analysis with qualitative feedback, this study contributes to the understanding of local market-based communities as key drivers of regional development. It emphasizes the importance of building vibrant, resourceful community networks to revitalize areas experiencing socio-economic challenges.