1. HUB
AND CONNECTOR
최 명 군

3. Erdős–Rényi Model

4. Erdős–Rényi Model

5. - 무작위적인 연결
- 모든 노드들은 같은 수의 링크를 갖게 될 것임
Erdős–Rényi Model

7. Watts-Strogatz model

8. Watts-Strogatz model

9. - 무작위적인 연결
- 사회적 시스템들 안에는 클러스터들이 존재함
- 장거리 링크들은 노드간의 평균거리를 단축시킴
Watts-Strogatz model

10. Barabási–Albert model

11. A.O. I. Hoffmann, W. Jager and J. H. Von Eije(2007),
Social Simulation of Stock Markets: Taking It to the Next Level,
Journal of Artificial Societies and Social Simulation vol. 10, no. 2, 7
Barabasi and Albert scale free network

12. - 척도 없는 네트워크(scale-free network)
- 허브(Hub) / 커넥터(Connector)
Barabási–Albert model

13. Example…

33. Hub

34. Connector

35. hub

38. connector

42. Hub/Connector
1.People in a community who know
large numbers of people and who
are in the habit of making
introductions.
2.The social equivalent of a computer
network hub.

43. 1.한 커뮤니티에서 많은 사람들을 알고 소개 인(人)
으로써의 역할을 담당하는 사람.
2. 컴퓨터 네트워크의 ‘허브’에 상당하는 의미를
지닌 사회적 어휘
Hub/Connector

44. - 비정상적으로 많은 링크를 갖고 있는 노드들
Hub/Connector

48. World Airline Routes
http://www.flickr.com/photos/97373666@N00/3264396897/
- Data from:
Google Maps(http://maps.google.com/)
Airlineroutemaps(http://www.airlineroutemaps.com/index.html)

49. 1. 경향과 유행을 만듦
2. 중요한 거래를 성사시킴
3. 유행을 전파
4. 식당 개업하는 것을 도와줌
Hub/Connector(social)

50. Hub = Connector?

51. NO!

52. Hub ≒ Connector

53. Hub ≠ Connector

54. SNA

55. Hub ≠ Connector
- Hubs/Connectors are nodes with
high degree and betweeness
centrality.
- Orgnet.com
http://www.orgnet.com/sna.html

56. SNA.1

58. Social network

59.  1 Mode Matrix
 Symmetric Matrix
 Binary Matrix
 Non-directional Matrix

61. Hub
Connector

62. SNA.2

64. Ecosystem network

65.  1 Mode Matrix
 Asymmetric Matrix
 Binary Matrix
 Directional Matrix

67. Hub/
Connector
Hub/
Connector

68. HUB
AND CONNECTOR

69. Q&A

70. THANK YOU