[databeers] 18-09-2014 la geografía de las redes sociales urbanas. carlos herrera
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"La Geografía de las Redes Sociales Urbanas". Carlos HerreraTRANSCRIPT
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The geography of urban networks
@cyague Dataβeers / Sept 2014
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Our data
• 3 phone networks, country scope during 6 month. In total, about 7 billion calls
• Mutual links considered (at least one interaction per direction)
• User are geo-located to their most used tower (FR and PT) or zip code (SP)
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What about virality?
Tuesday, November 12, 13
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Long distance
-1.5<α<-1
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What about virality?
Tuesday, November 12, 13
Are modularity induced communities geographically clustered?
1 Take the social graph !2 Detect communities !3 Assign each detected top level community a color !4 Plot towers in the map, coloring them according the most common community among its users
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The method permits non-adjacent communities!!!
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All these results are about nation-wide social networks
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Do they hold within cities?
All these results are about nation-wide social networks
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R?
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R?
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Which is the critical R so that the ball often contains a connected network?
(*) at least we couldn’t find it
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There is not (*)
(*) at least we couldn’t find it
However, we found that if the balls contains at least an entire city, a giant component emerges
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ResultConnections between most central actors
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One more thing
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What about virality?
Tuesday, November 12, 13
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ResultConnections between most central actors