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Communication Dans Un Congrès Année : 2014

Modeling user and topic interactions in social networks using Hawkes processes

Résumé

We present in this paper a framework to model information diffusion in social networks based on linear multivariate Hawkes processes. Our model exploits the effective broadcasting times of information by users, which guarantees a more realistic view of the information diffusion process. The proposed model takes into consideration not only interactions between users but also interactions between topics, which provides a deeper analysis of influences in social networks. We provide an estimation algorithm based on nonnegative matrix factorization techniques, which together with a dimensionality reduction argument is able to discover, in addition, the latent community structure of the social network. We also provide several numerical results of our method

Dates et versions

hal-01262345 , version 1 (26-01-2016)

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Julio Cesar Louzada Pinto, Tijani Chahed. Modeling user and topic interactions in social networks using Hawkes processes. VALUETOOLS 2014 : 8th International Conference on Performance Evaluation Methodologies and Tools, Dec 2014, Bratislava, Slovakia. pp.58 - 65 ⟨10.4108/icst.Valuetools.2014.258186⟩. ⟨hal-01262345⟩
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