Title
User-centered probabilistic models for content diffusion in the blogosphere.
Abstract
Predicting the diffusion of information in social networks is a key problem for applications like Opinion Leader Detection, Buzz Detection or Viral Marketing. Many diffusion models are direct extensions of the Cascade and Thresholdmodels, initially proposed for epidemiology and social studies. In such models, the diffusion process is based on the dynamics of interactions between neighbor nodes in the network (the social pressure), and largely ignores important dimensions as the content diffused and the active/passive role users tend to have in social networks. We propose here a new family of models that aims at predicting how a content diffuses in a network by making use of additional dimensions: the content diffused, user’s profile and willingness to diffuse. In particular, we show how to integrate these dimensions into simple feature functions, and propose a probabilistic modeling to account for the diffusion process. These models are then illustrated and compared with other approaches on two blog datasets. The experimental results obtained on these datasets show that taking into account the content diffused is important to accurately model the diffusion process. Lastly, we study the influence maximization problem with these models and prove that it is NP-hard, prior to propose an adaptation of the greedy algorithm to approximate the optimal solution.
Year
DOI
Venue
2018
10.1016/j.osnem.2018.01.001
Online Social Networks and Media
Keywords
Field
DocType
Information diffusion,Modelization,Social networks
Viral marketing,Social network,Computer science,Greedy algorithm,Theoretical computer science,Opinion leadership,Probabilistic logic,Blogosphere,Maximization,Marketing buzz
Journal
Volume
ISSN
Citations 
5
2468-6964
0
PageRank 
References 
Authors
0.34
26
3
Name
Order
Citations
PageRank
Cédric Lagnier1503.99
Éric Gaussier247162.66
François Kawala301.01