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stat.ME2024
On a risk model with tree-structured Poisson Markov random field frequency, with application to rainfall events
Hélène Cossette, Benjamin Côté, Alexandre Dubeau +1
In many insurance contexts, dependence between risks of a portfolio may arise from their frequencies. We investigate a dependent risk model in which we assume the vector of count v…
stat.ME2024
Tree-structured Markov random fields with Poisson marginal distributions
Benjamin Côté, Hélène Cossette, Etienne Marceau
A new family of tree-structured Markov random fields for a vector of discrete counting random variables is introduced. According to the characteristics of the family, the marginal…