• Journal of Technology Innovation
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• v.27 no.4
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• pp.1-19
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• 2019

This study presents a new method to evaluate patents by public R&D program using patent citation network analysis. I used forward citation, degree centrality, betweenness centrality and page rank as the dependent variables which represents the quality of patents. I used primary independent variable as a dummy of public R&D program and controlled patents characteristics, applicant characteristics, technological characteristics and year effect. The empirical result shows that the patents of public R&D program is superior to other patents in regard to the number of forward citation, the degree centrality, the betweenness centrality and the page rank. This empirical result implies that patents of public R&D program directly and effectively connects technologies. Also patents from public R&D program connects important technologies.

• Journal of the International Relations & Interdisciplinary Education
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• v.2 no.1
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• pp.15-28
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• 2022

College students' perception of social responsibility is directly related to the development of the country. With the development of society, the social responsibility of university students is becoming more important, so research on it is being actively conducted in China. In order to understand the current research status of social responsibility education for Chinese university students, this study analyzed the research trends of the top 22 language networks among the key words that appeared in related studies from January 2015 to December 2021. As a result, many key words such as college student social responsibility (563), social responsibility education (340 times), college students (191), social responsibility (197 times), and responsibility (133 times) appeared a lot. In the case of connection centrality, the connection centrality of social responsibility education, college student social responsibility, college students, and social responsibility was high. In the case of proximity centrality, the proximity centrality of college students' social responsibility, social responsibility education, college students, and social responsibility was high.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.67
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• pp.233-253
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• 2015

The cooperation among industry, academy and government is the main factor for world leading trade country. In particular, many papers and research is greatly helpful for finding the needs of industry and establishing strategies. Academic activities have significantly contributed the development of trade. In recent time, the approach based on complexity, convergence and consilience in increasing in academic fields for more mutual understanding and exchange of ideas. For this reason, joint research is necessary in trade. In this research, author can find not only the trend of joint research but also the centrality of trade researchers in the excellent journals in Korea by use of Social Network Analysis.

• Journal of the Society of Disaster Information
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• v.20 no.2
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• pp.462-469
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• 2024

Purpose: This study aims to analyze data on disaster safety education for migrant youth and to examine the corresponding social perceptions. Method: Data on disaster safety education for migrant youth were collected and analyzed using Textom and Ucinet. The data used in the study were searched on portal websites from 2016 to 2023 using the keywords 'migrant youth+ disaster + safety education'. Result: The analysis results showed that 'education (306)' had the highest frequency, followed by 'safety (287)', 'school (97)', 'society (85)', and 'support (77)'. The keyword with the high degree of centrality, closeness centrality, and betweenness centrality were 'education', 'safety' and 'society'. 'Family' ranked higher in betweenness centrality than the rankings of frequency analysis, degree centrality and closeness centrality, indicating that 'family' plays a significant role as a mediator in the network of disaster safety education for migrant youth. Conclusion: By examining social awareness about disaster safety education for migrant youth, the findings will be used to develop policies and strategies for disaster safety education that consider the unique vulnerabilities of migrant youth in disaster situations.

• The Journal of the Korea Contents Association
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• v.21 no.1
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• pp.24-38
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• 2021

This study aims to measure Korea's global competitiveness in intelligent information technology, which is the core technology of the 4th industrial revolution. For analysis, we collect patents of each field and prior patents cited by them, which are applied at the U.S. Patent Office (USPTO) between 2010 and 2018 from PATSTAT Online. A global knowledge transfer network was established by grouping citing- and cited-relationships at a national level. The in-degree centrality is used to evaluate technology acceptance, which indicates the process of absorbing existing technological knowledge to create new knowledge in each field. Second, to evaluate the impact of existing technological knowledge on the creation of new one, the out-degree centrality is investigated. Third, we apply the PageRank algorithm to qualitatively and quantitatively investigate the importance of the relationships between countries. As a result, it is confirmed through all the indicators that the AI sector is currently the least competitive.

• Journal of the Korea Convergence Society
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• v.13 no.2
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• pp.1-12
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• 2022

The purpose of this study is to identify the social perception characteristics of young children with disabilities over the past decade. For this purpose, Textom, an Internet-based big data analysis system was used to collect data related to young children with disabilities posted on social media. 50 keywords were selected in the order of high frequency through the data cleaning process. For semantic network analysis, centrality analysis and CONCOR analysis were performed with UCINET6, and the analyzed data were visualized using NetDraw. As a result, the keywords such as 'education, needs, parents, and inclusion' ranked high in frequency, degree, and eigenvector centrality. In addition, the keywords of 'parent, teacher, problem, program, and counseling' ranked high in betweenness centrality. In CONCOR analysis, four clusters were formed centered on the keywords of 'disabilities, young child, diagnosis, and programs'. Based on these research results, the topics on social perception of young children with disabilities were investigated, and implications for each topic were discussed.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.209-217
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• 2013

This study focuses on the analysis of purchased items' relationship occurred by consumers' purchasing behavior observed in on-line shopping mall based on social network analysis. In order to find relational characteristics of each item for establishing marketing strategy, we apply three definitions of centrality in network, which are degree centrality, betweenness centrality, and closeness centrality in the purchased items' network. Thus, the research results provide the criteria for selection of market segmentation variables. Furthermore, the details of case has been introduced to validate the analyzed results in terms of marketing strategy, and supporting evidences are provided accordingly.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.73-75
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• 2018

최근의 하천복원 사업은 제외지 중심의 하천복원에서 벗어나 제내지의 격리 차단된 구하도까지 복원하고자 하는 노력이 시도되고 있다. 그러나 하천복원에 따른 수리적 및 생태적 연결성 향상이 적절히 수행되는지에 대한 정량적 평가 수단이 부족한 상태다. 본 연구에서는 구하도 복원에 따른 생태적 연결성 평가수단으로서 복원전 후 수리해석 결과를 이용하여 대상어종의 서식처적합도지수(HSI)와 식생의 공간분포를 분석 또는 예측할 수 있는 모형을 개발하였다. 공간분포된 수리특성을 위해서는 2 3차원의 모형이 필요하지만 복잡한 계산과정, 고도의 기술 및 많은 시간과 비용이 필요하다는 점에서 접근이 용이하지 않다. 이에 1차원 홍수추적모형의 결과를 이용하여 1차원 수리특성을 2차원으로 확장시키는 수치모형도 함께 개발하였다. 다만 개발된 각 모형의 단계별 실행 결과는 개별적인 요소의 평가로서 그 의미가 작으므로 하천복원의 종합적 평가를 위한 수리-물리서식처-식생의 통합적 모의가 필요하다 개발된 모형의 사용성 증대 및 생태적 연결성 평가 통합모형으로의 발전을 위해 개발된 모형을 하나의 연동시스템으로 구축하고자 하며, 연동 시스템을 이용하여 수리적 및 생태적 연결성을 신속하고 간단하게 해석할 수 있다.

• The Journal of Society for e-Business Studies
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• v.20 no.1
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• pp.23-43
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• 2015

Information and communications technology facilitates collaboration among individuals by functioning as an open platform for open collaboration projects. In this regard, this study aims to understand the network characteristics of participants who contribute greatly to open collaboration by investigating the mutual cooperation network in an open source project, which represents a form of open collaboration based on social network theory. To achieve this objective, this study analyzes the network centrality of developers with a high number of commits, particularly 8,101 developers in 782 repositories in GitHub, a representative open source platform. This study also determines how the relationship between network centrality and number of commits depends on the size of a repository network and the presence of a hub. Consequently, the number of commits by developers with high degree, betweenness, and closeness centrality is increasing. Among which, betweenness centrality has the highest explanatory power. Furthermore, when a hub is present and as network size increases, the relationship between the betweenness centrality of a developer and his/her number of commits continues to grow. This study is expected to provide suggestions for the successful performance of open collaboration projects in the future.

• Journal of Digital Convergence
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• v.17 no.9
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• pp.471-477
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• 2019

The purpose of this study is to analyse the attacking pattern of the key player through plenty of passes on field hockey between the winning games and losing ones through the preliminary game and the tournament. It has shown that the Korean women national team on field hockey is analysed all the passes through the sportscode for the 6 games of the World-League Final, and is investigated the centrality through the social network analysis using the R analytic software. The result is followed : First, It has shown three tendencies on the preliminary games that it has shown a lower Degree-Centrality, a same with Closeness, and a higher Betweenness than the tournament. Second, It has also described on winning games that it has explained a lower Degree-Centrality, a same with Closeness, and a higher Betweenness than losing games. On the conclusion, it has revealed that Korean women national team on field hockey showed a tendency that prefer to use a counter-attacking. Based on these study, expect to be used as a way to analyze performance in the field.