Title
Correlated Cascades: Compete or Cooperate
Abstract
In real world social networks, there are multiple diffusion processes which are rarely independent. They usually interact with each other in a competitive or cooperative manner. In this paper, motivated by the reinforcement theory in sociology, we model the adoption behavior of users in social networks by a multivariate marked Hawkes process. According to this model, the intensity of a user to adopt any behavior is modeled by aggregation of behaviors of its neighbors. The type of adopted behavior is also defined probabilistically from the ratio of different product usages among neighbors in which a user can exhibit a competitive or cooperative behavior. In other words, users tend to conduct the mostly adopted behavior in a competitive environment. The resulting inference problem is proved to be convex and is solved by using the barrier method. The advantage of the proposed model is twofold; besides modeling dependent cascades, it also learns the underlying latent diffusion network. Experimental results on synthetic and two real datasets gathered from Twitter, URL shortening and music streaming services, illustrate the superior performance of the proposed model over alternatives.
Year
Venue
Field
2015
national conference on artificial intelligence
Reinforcement theory,Leverage (finance),Social network,URL shortening,Inference,Computer science,Barrier method,Artificial intelligence,Machine learning
DocType
Volume
Citations 
Journal
abs/1510.00936
9
PageRank 
References 
Authors
0.49
22
6
Name
Order
Citations
PageRank
ali zarezade1192.71
Ali Khodadadi2162.94
Mehrdad Farajtabar323020.70
Hamid R. Rabiee433641.77
Le Song52437159.27
Hongyuan Zha66703422.09