Wójcik, Rafał; Liu, Charlie Wusuo; Guin, Jayanta - In: Risks : open access journal 7 (2019) 2/54, pp. 1-22
We present several fast algorithms for computing the distribution of a sum of spatially dependent, discrete random variables to aggregate catastrophe risk. The algorithms are based on direct and hierarchical copula trees. Computing speed comes from the fact that loss aggregation at branching...
