PET models extend Poisson-Tweedie models via geometric compounding, adding a quadratic term to the mean-variance relationship for ultra-overdispersed count data.
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On Poisson-exponential-Tweedie models for ultra-overdispersed data
PET models extend Poisson-Tweedie models via geometric compounding, adding a quadratic term to the mean-variance relationship for ultra-overdispersed count data.