| *集中性的概念也扩展到了团体层面。 例如, '''组件居中性''' 表示连接通过组的非组成员对的测地线比例。<ref name="group1">Everett, M. G. and Borgatti, S. P. (2005). Extending centrality. In P. J. Carrington, J. Scott and S. Wasserman (Eds.), ''Models and methods in social network analysis'' (pp. 57–76). New York: Cambridge University Press.</ref><ref name="group2">Puzis, R., Yagil, D., Elovici, Y., Braha, D. (2009).[http://necsi.edu/affiliates/braha/Internet_Research_Anonimity.pdf Collaborative attack on Internet users’ anonymity] {{Webarchive|url=https://web.archive.org/web/20131207133417/http://necsi.edu/affiliates/braha/Internet_Research_Anonimity.pdf |date=2013-12-07 }}, ''Internet Research'' '''19'''(1)</ref> | | *集中性的概念也扩展到了团体层面。 例如, '''组件居中性''' 表示连接通过组的非组成员对的测地线比例。<ref name="group1">Everett, M. G. and Borgatti, S. P. (2005). Extending centrality. In P. J. Carrington, J. Scott and S. Wasserman (Eds.), ''Models and methods in social network analysis'' (pp. 57–76). New York: Cambridge University Press.</ref><ref name="group2">Puzis, R., Yagil, D., Elovici, Y., Braha, D. (2009).[http://necsi.edu/affiliates/braha/Internet_Research_Anonimity.pdf Collaborative attack on Internet users’ anonymity] {{Webarchive|url=https://web.archive.org/web/20131207133417/http://necsi.edu/affiliates/braha/Internet_Research_Anonimity.pdf |date=2013-12-07 }}, ''Internet Research'' '''19'''(1)</ref> |