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Influence propagation: Patterns, model and a case study

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Lin, Yibin; Raza, Agha Ali; Lee, Jay-Yoon; Koutra, Danai; Rosenfeld, Roni; Faloutsos, Christos

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Springer Verlag
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol.8443 LNAI No.PART 1, pp.386-397
When a free, catchy application shows up, how quickly will people notify their friends about it? Will the enthusiasm drop exponentially with time, or oscillate? What other patterns emerge? Here we answer these questions using data from the Polly telephone-based application, a large influence network of 72,000 people, with about 173,000 interactions, spanning 500MB of log data and 200 GB of audio data. We report surprising patterns, the most striking of which are: (a) the Fizzle pattern, i.e., excitement about Polly shows a power-law decay over time with exponent of -1.2; (b) the Rendezvous pattern, that obeys a power law (we explain Rendezvous in the text); (c) the Dispersion pattern, we find that the more a person uses Polly, the fewer friends he will use it with, but in a reciprocal fashion. Finally, we also propose a generator of influence networks, which generate networks that mimic our discovered patterns © 2014 Springer International Publishing.
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