The Social Bow Tie Heather Mattie,∗,† Kenth Engø-Monsen,‡ Rich Ling,¶ and Jukka-Pekka Onnela† †Biostatistics Department, Harvard T.H. Chan School of Public Health, 651 Huntington arXiv:1710.04177v2 [cs.SI] 12 Oct 2017 Ave., Boston, MA 02115 ‡Telenor...
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The Social Bow Tie Heather Mattie,∗,† Kenth Engø-Monsen,‡ Rich Ling,¶ and Jukka-Pekka Onnela† †Biostatistics Department, Harvard T.H. Chan School of Public Health, 651 Huntington arXiv:1710.04177v2 [cs.SI] 12 Oct 2017 Ave., Boston, MA 02115 ‡Telenor Research, D4d, Snarøyveien 30, N-1360 Fornebu, Norway ¶Wee Kim Wee School of Communication and Information, Nanyang Technological University, Singapore, 31 Nanyang Link, Singapore 637718 E-mail: hemattie@hsph.harvard.edu Abstract Understanding tie strength in social networks, and the factors that influence it, have received much attention in a myriad of disciplines for decades. Several models incorporating indicators of tie strength have been proposed and used to quantify re- lationships in social networks, and a standard set of structural network metrics have been applied to predominantly online social media sites to predict tie strength. Here, we introduce the concept of the “social bow tie” framework, a small subgraph of the network that
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