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Análise de Redes Sociais - Teoria e Prática

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O que é Análise de Redes Sociais? Como a ARS nos ajuda a entender melhor grupos e organizações? Como ela nos ajuda a melhorar o desempenho destes grupos e organizações? Essa apresentação, feita em uma reunião da Sociedade Brasileira de Gestão do Conhecimento. procura responder a essas questões ao mesmo tempo em que mostra como a ARS é feita na prática.

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Análise de Redes Sociais - Teoria e Prática

  1. 1. Análise de Redes Sociais Fernando Guarnieri
  2. 2. <ul><li>O que é Análise de Redes Sociais </li></ul><ul><li>Como se faz análise de redes sociais </li></ul>
  3. 3. <ul><li>O que é Análise de Redes Sociais </li></ul><ul><li>Como se faz análise de redes sociais </li></ul>
  4. 4. Rede Social: uma estrutura formada por nós, que geralmente representam pessoas, e ligações entre nós, representando relações entre essas pessoas.
  5. 5. A Análise de Redes Sociais busca entender as implicações dos padrões de relacionamento em uma rede para o desempenho e o desenvolvimento desta rede
  6. 6.
  7. 7. Moreno “Star”
  8. 8. Moreno “relações de amizade entre crianças da quarta série”
  9. 9. The Strength of Weak Ties M.. Granovetter
  10. 10. Chains of Affection: The Structure of Adolescent Romantic and Sexual Networks R. Bearman, J. Moody, K. Stovel
  11. 11. The largest component of the Santa Fe Institute collaboration network Community structure in social and biological networks M. Girvan e M. E. J. Newman
  12. 12. Uncloaking Terrorist Networks, Valdis Krebs
  13. 13. Largest Connected Subcomponent of the Social Network in the Framingham Heart Study in the Year 2000 The Spread of Obesity in a Large Social Network over 32 Years N. Christakis e J. Fowler
  14. 14.
  15. 15. Knowledge Sharing and Yahoo Answers: Everyone Knows Something Lada A. Adamic 1 , Jun Zhang 1 , Eytan Bakshy 1 , Mark S. Ackerman
  16. 16. Knowledge Sharing and Yahoo Answers: Everyone Knows Something Lada A. Adamic 1 , Jun Zhang 1 , Eytan Bakshy 1 , Mark S. Ackerman
  17. 17. <ul><li>O que é Análise de Redes Sociais </li></ul><ul><li>Como se faz análise de redes sociais </li></ul>
  18. 18. <ul><li>Questionário </li></ul>
  19. 19.
  20. 20.
  21. 21.
  22. 22. <ul><li>Matriz </li></ul>
  23. 23.   João Antonia Maria Eduardo Pedro Paulo Henrique Ana Marcelo Ricardo João - 1 0 0 0 0 0 0 1 1 Antonia 1 - 0 0 1 1 0 0 0 0 Maria 0 0 - 1 1 1 1 1 0 0 Eduardo 0 0 1 - 1 0 1 1 0 0 Pedro 0 1 1 1 - 0 1 0 0 0 Paulo 0 1 1 0 0 - 0 1 0 0 Henrique 0 0 1 1 1 0 - 0 0 0 Ana 0 0 1 1 0 1 0 - 0 0 Marcelo 1 0 0 0 0 0 0 0 - 0 Ricardo 1 0 0 0 0 0 0 0 0 -
  24. 24. <ul><li>Sociograma </li></ul>
  25. 25.
  26. 26. <ul><li>Métricas </li></ul><ul><ul><ul><li>Distância </li></ul></ul></ul><ul><ul><ul><li>Densidade </li></ul></ul></ul>
  27. 27. <ul><li>Distância: o menor número de passos para se chegar de um extremo a outro da rede </li></ul><ul><li>Densidade: número de vínculos presentes sobre o total de vínculos possíveis </li></ul>
  28. 28.
  29. 29. <ul><li>Distância: o menor número de passos para se chegar de um extremo a outro da rede </li></ul><ul><ul><li>g = 4 </li></ul></ul><ul><li>Densidade: número de vínculos presentes sobre o total de vínculos possíveis </li></ul><ul><ul><li> = 0,3 </li></ul></ul>
  30. 30. <ul><li>Grupos </li></ul><ul><ul><ul><li>Clique </li></ul></ul></ul><ul><ul><ul><li>Clã </li></ul></ul></ul>
  31. 31.
  32. 32. <ul><li>Grupos </li></ul><ul><ul><ul><li>Equivalência estrutural </li></ul></ul></ul><ul><ul><ul><li>Blockmodel </li></ul></ul></ul>
  33. 33. <ul><li>Grupos </li></ul><ul><ul><ul><li>Equivalência estrutural </li></ul></ul></ul><ul><ul><ul><li>Blockmodel </li></ul></ul></ul>
  34. 34. Reduced BlockMatrix 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 - - - - - - - - - - - - - - - - - 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 1 1 1 1 1 1 0 1 0 1 0 0 0 0 0 0 0 8 1 1 1 1 0 1 0 1 0 1 0 0 0 0 0 0 0 9 1 1 1 1 1 1 0 1 0 1 1 1 1 1 0 0 0 10 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 11 1 1 1 1 1 1 0 1 0 1 1 1 1 0 0 0 0 12 1 1 1 1 1 1 0 1 0 1 0 1 1 1 0 0 0 13 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0 14 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0 15 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 17 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0
  35. 35.
  36. 36.
  37. 37.
  38. 38. <ul><li>Grupos </li></ul><ul><ul><ul><li>Equivalência estrutural </li></ul></ul></ul><ul><ul><ul><li>Blockmodel </li></ul></ul></ul>
  39. 39.
  40. 40. <ul><li>Métricas </li></ul><ul><ul><ul><li>Centralidade </li></ul></ul></ul><ul><ul><ul><li>Intermediação </li></ul></ul></ul><ul><ul><ul><li>Proximidade </li></ul></ul></ul>
  41. 41. <ul><li>Métricas </li></ul><ul><ul><ul><li>Centralidade </li></ul></ul></ul><ul><ul><ul><li>Intermediação </li></ul></ul></ul><ul><ul><ul><li>Proximidade </li></ul></ul></ul>
  42. 42.
  43. 43.
  44. 44. <ul><li>Métricas </li></ul><ul><ul><ul><li>Centralidade </li></ul></ul></ul><ul><ul><ul><li>Intermediação </li></ul></ul></ul><ul><ul><ul><li>Proximidade </li></ul></ul></ul>
  45. 45.
  46. 46.
  47. 47. <ul><li>Métricas </li></ul><ul><ul><ul><li>Centralidade </li></ul></ul></ul><ul><ul><ul><li>Intermediação </li></ul></ul></ul><ul><ul><ul><li>Proximidade </li></ul></ul></ul>
  48. 48.
  49. 49. G = 2  = 0,42
  50. 50. Antes Depois 1. Revele a rede 2. Analise a rede 3. Melhore a conectividade
  51. 51. 關係

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