그림 1. 전체 분석 과정 Fig. 1 Entire analysis processing
그림 2. 연도별 출판 논문 수 Fig. 2 Number of published paper
그림 5. 키워드 연계 관계 분석 Fig. 5 Analysis of associative relation by keyword
그림 6. 네트워크 차수 분석 Fig. 6 Analysis of network degree
그림 7. 매개 중심성 분석 Fig. 7 Analysis of betweenness centrality
그림 8. 근접 중심성 분석 Fig. 8 Analysis of closeness centrality
그림 9. 조화 중심성 분석 Fig. 9 Analysis of harmonic closeness centrality
그림 3. 국가별 출판 논문 수 Fig. 3 Number of published paper each nation
그림 4. 키워드 분류에 의한 국가별 출판 논문 수 Fig. 4 Number of published paper each nation by keyword classification
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