Szymański, Andrzej; Rossa, Agnieszka - In: Statistics in transition : an international journal of … 22 (2021) 3, pp. 31-57
The paper deals with a new fuzzy version of the Lee-Carter (LC) mortality model, in which mortality rates as well as parameters of the LC model are treated as triangular fuzzy numbers. As a starting point, the fuzzy Koissi-Shapiro (KS) approach is recalled. Based on this approach, a new fuzzy...
