• Title/Summary/Keyword: local centrality

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Analyzing the Degree Centrality of Korea Rural Community Corporation Business Using Network Analysis (네트워크 분석을 이용한 한국농어촌공사 사업의 중심성 측정)

  • Yi, Hyang-Mi
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.12
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    • pp.595-602
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    • 2020
  • This study analyzes the plan to increase the social value of the KRC (Korea Rural Community Corporation). For this aim, this study examines the current status of participation in the KRC business and the social value, targeting the farmers among the external stakeholders and derived the main characteristics and important projects of the KRC using network analysis. As a result of network analysis, the rural water management business was found to be the most important business in most regions (Rural Water Development Business 0.805, Agricultural and Fishery Production Base Maintenance Business 0.758, Farmland Banking Business 0.762, Regional Development Business 0.643). On the other hand, in the case of Jeju, the agricultural production base improvement business and the regional development project were found to be the most important projects of KRC due to the unique characteristics of the region. The results of this kind of analysis differ in the importance between KRC business by region, and it is necessary to carefully review the local conditions in order to enhance social value through KRC business in the future. However, since the value of degree centrality between each business is different for each region, efforts to increase the value of KRC's social value, while accounting for local conditions, are needed.

Network Analysis to Describe Service Link for Customized Visiting Health Care Program (맞춤형방문건강관리사업의 지역사회 네트워크 탐색)

  • Jang, Soong-Nang;Cho, Sung-Il
    • Korean Journal of Health Education and Promotion
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    • v.29 no.1
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    • pp.1-11
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    • 2012
  • Objectives: The nurse visiting health service named Customized Visiting Health Care Program(CVHCP) requires the service innovations incorporating community support into a local service network. The purpose of this study was to assess the community network in CVHCP and inform improvement in this network. Methods: We used Social Network Analysis(SNA) in one CVHCP at H city. Network links were generated by self-administered questionnaires by the 14 community resource centers who quantified their links to all other 25 agents on the list. Links were analyzed by a dichotomous scale for any experience of collaboration and a scored scale of 0 to 3 for level of collaboration using UCINET v6. Results: A list of 14 agents was generated, and local network was dominated by the Public Health Center and a local welfare center named Unlimited Care Center(UCC). According to centrality score, UCC was the most prominent agent, and Public Health Center was the most influential agent, being a link in the pathway flow between other agents for 9.5% of contribution. CVHCP scored lower rank of prominent with 30.8% of other agents reported referring to it. Conclusions: Social network analysis provides a useful network description for informing and evaluation service network improvement in maximizing its service for the CVHCP.

A Study on Technology Forecasting based on Co-occurrence Network of Keyword in Multidisciplinary Journals (다학제 분야 학술지의 주제어 동시발생 네트워크를 활용한 기술예측 연구)

  • Kim, Hyunuk;Ahn, Sang-Jin;Jung, Woo-Sung
    • Journal of the Korean Operations Research and Management Science Society
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    • v.40 no.4
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    • pp.49-63
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    • 2015
  • Keyword indexed in multidisciplinary journals show trends about science and technology innovation. Nature and Science were selected as multidisciplinary journals for our analysis. In order to reduce the effect of plurality of keyword, stemming algorithm were implemented. After this process, we fitted growth curve of keyword (stem) following bass model, which is a well-known model in diffusion process. Bass model is useful for expressing growth pattern by assuming innovative and imitative activities in innovation spreading. In addition, we construct keyword co-occurrence network and calculate network measures such as centrality indices and local clustering coefficient. Based on network metrics and yearly frequency of keyword, time series analysis was conducted for obtaining statistical causality between these measures. For some cases, local clustering coefficient seems to Granger-cause yearly frequency of keyword. We expect that local clustering coefficient could be a supportive indicator of emerging science and technology.

A Study about Library-Related Open Data through Public Data Portals (공공데이터 포털을 통해 개방된 도서관 관련 데이터 분석)

  • Cho, Jane
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.29 no.2
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    • pp.35-56
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    • 2018
  • This study examines the current state of library related data opened through public data portals, and analyzes how much data is being utilized according to the type of releasing organization, and open level. In addition, we analyzed the subject cluster of data and the centrality of data by performing PathFinder Network analysis using keywords assigned to data by dividing the releasing subject into local government and national/public institutions. Based on this, the subject area of library - related data disclosed by local governments and national/public organizations is understood. And identify the main open body that should be opened first by linking with data utilization analysis result and then suggest implications for future improvement in connection with library big data business.

Our Scholarly 'Pivot To Asia'

  • Xu, Weiai Wayne
    • Journal of Contemporary Eastern Asia
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    • v.18 no.1
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    • pp.1-6
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    • 2019
  • During the Obama administration, America made a shift in its foreign policies to re-focus on Asia. The strategy, known as 'Pivot to Asia', was used to contain a rising China. In this editorial note, I appropriate the geopolitical term to call for a scholarly refocus on Asia (and the broader Asia Pacific region). JCEA started as an area journal. While it has become more technology-focused and less geographically-bounded in its coverage of topics, the journal recognizes the centrality of the region's political economy and technological forces in setting (and upsetting) global norms and rules. The Asia Pacific contains the world's freest economies as well as the most oppressive regimes. It breeds both technology giants and laggards. As new geopolitical tensions loom, it is where the digital iron curtain is drawn, and where the vice and virtue of innovations debated. Social scientists in the English world, who lend extensively on European and American cases, can benefit from studying the Asia Pacific by testing whether and how local experience conforms to or confronts with universal theories. Very likely, western-centric norms and models become morphed and entangled in the grounded local particularity, reflecting many shades of this diverse place. In my arguments below, I highlight the Asia Pacific as a site of contradiction, as well as a site of contention and negotiation. My emphasis is that regional particularity holds the key to answer concurrent debates in the West concerning governance and accountability in the digital age.

A Study on Road Transport Network And Economy effect in Korea: Application of SNA and Spatial Panel Regression (국내 지역별 도로운송네트워크가 지역경제에 미치는 영향: SNA 및 공간패널회귀모형의 적용)

  • Jin-Ho Oh;Jae-Seon Ahn;Zhen Wu
    • Korea Trade Review
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    • v.47 no.2
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    • pp.175-193
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    • 2022
  • This study analyzes the effects of road transportation networks on the local economy in korea. The analysis methods are SNA and spatial panel regression model. The subjects of this study are inland areas of Korea, and the research period is from 2010 to 2019. The network analysis showed that the connection centrality of Gyeongg-do was high internally and externally. Gyeonggi-do has played a central role in the domestic road freight transportation industry. The results of spatial panel regression analysis showed that there was economic competition between regions. Domestic road transportation industry has been competitive among regions and has economic ripple effect. And Internal cargo has been shown to boost the economy of the region. But internal cargo has been shown to lower the economy of surrounding regions, but external cargo has been shown to increase the economy. In order to revitalize the local economy, it is necessary to increase road cargo.

Analysis of Issues on Underground Space between Central and Local Governments Utilizing Social Media Data (소셜미디어 데이터를 활용한 중앙정부와 지방정부 간 지하공간의 주요 이슈 고찰)

  • Choi, Hae-Ok;Baek, Sung-Joon
    • Journal of Cadastre & Land InformatiX
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    • v.46 no.1
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    • pp.75-86
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    • 2016
  • This study examines the social issues between the central and local governments related with the underground space after happenings of sinkholes in Jamsil area in July, 2014. In this study, we consider the keyword network of the social network analysis as a research methodology. The social issues regarding the underground space have been dealt with through the analysis of the centrality and group density to know the attributes of the network. The results show that the government has been steadily helpful to the local governments for establishing the socialized law for the underground space. This research suggests that the laws and technologies as to the underground space issues cooperate each other in the future. It also shows that the government should enact the policies and the national plans for the development of the underground.

Tendency Analyze the Core Policies of Local Government Directors (지방자치단체장의 주요정책 경향분석(I):민선 5기 선거공약을 중심으로)

  • Choi, Ho-Taek;Ryu, Sang-Il;Jung, Seok-Hwan;Lee, Min-Kyu
    • The Journal of the Korea Contents Association
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    • v.12 no.12
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    • pp.661-671
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    • 2012
  • The purpose of this study was to analyze the core policies of local government directors by performing centrality analysis on their core policies using network text analysis method. From the research results, it was verified to some extent that major policies of local government directors were changing during the path to arrive at 5th civil election. However, according to policy type by Peterson (development policy, allocation policy and redistribution policy) it was found that they still focused on development policies. However, it is encouraging that the government directors elected in the 5th election started to pay attention to 'Culture' which is one of allocation policies.

Study on U-City Service Issue and Trends based Text Mining - Using the Network Analysis and Information Measure Method - (텍스트 마이닝에 기반한 U-City 서비스 이슈 및 동향분석 - 네트워크분석 및 정보량계측기법을 활용하여 -)

  • Jeong, Dawoon;Yoo, Jisong;Yi, Mi-Sook;Shin, Dong Bin
    • Spatial Information Research
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    • v.23 no.3
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    • pp.35-44
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    • 2015
  • Recently, the government aims to discover and provide services to citizens on the development strategy for activating the U-City. So, this study aims to offer a service discovery direction by analyzing the service issues and trends. The target is newspaper article about U-City Service from 2009 to 2014. Prepared 723 newspaper article for analysis. Next step is frequency analysis of keyword and used that result for Network analysis and measure of information. Network analysis can show result through "Degree Centrality", "Betweenness Centrality" and "Closeness Centrality". As a result, "Information", "IT", "Environment", "Technology", "Center" is higher than another. These 5 keywords are important factors for driving the U-City the past six years. Information measurement results, Already U-City were put an emphasis on building the infrastructure and able to identify a trend that provided the center of the public service. Those Service field are "Tour(2009)", "Crime prevention and Disaster Prevention(2010)", "Facility Management(2011)", "administration(2012)" and "Facility Management(2013, 2014)". Result of this study found implications what on citizen participation. So, services field on the existing infrastructure should be discovered and provided. Finally, this study can expected to be a reference in the local government planning for U-City.

Assessing Conservation Priority of Private Land in Unexecuted Urban Parks in Seoul Using Betweenness Centrality Analysis (매개중심성 분석을 활용한 서울시 미집행공원 내 사유지 보전 우선순위 평가)

  • Hwang, Byungmook;Ko, Dongwook W.;Kang, Wanmo
    • Journal of Korean Society of Forest Science
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    • v.110 no.1
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    • pp.22-34
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    • 2021
  • The implementation of the sunset provision of unexecuted urban parks in Seoul has been postponed; however, the mentioned parks still remain vulnerable since they can be subject to development under certain circumstances. Local governments may purchase the parks to prevent their loss but are constrained due to limited resources. The purpose of this study is to prioritize the purchase of unexecuted urban parks in Seoul based on landscape connectivity, which represents the important role of allowing the movement of wildlife and providing biodiversity in urban environments. In this study, we used four potential scenarios (PB100, PB1, PA100, PA1), which reflects the degree of land cover change resulting from the implementation of the sunset provision, and the role of Han River as a conduit or barrier for wildlife movement. Landscape connectivity was evaluated by calculating current flow betweenness centrality (CFBC). This was used to rank the importance of the unexecuted urban parks in Seoul. The results demonstrated that the implementation of the sunset provision will greatly decrease the connectivity of all parks in Seoul and particularly more so for parks in the southern part of the city. In addition, the results suggested that the low connectivity of Han river will diminish the connectivity around Bukhansan Mountain in the northern part of Seoul. Our study can be used for the prioritization of purchase, since it has the ability to evaluate the anticipated vulnerability of each park's connectivity after the sunset provision.