Estimation of a Low-rank Topic-Based Model for Information Cascades

6 Sep 2017Ming YuVarun GuptaMladen Kolar

We consider the problem of estimating the latent structure of a social network based on the observed information diffusion events, or cascades, where the observations for a given cascade consist of only the timestamps of infection for infected nodes but not the source of the infection. Most of the existing work on this problem has focused on estimating a diffusion matrix without any structural assumptions on it... (read more)

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