Showing 1 - 10 of 341
Persistent link: https://www.econbiz.de/10011762987
We investigate economic and institutional determinants of ICT infrastructure for a broad cross section ofmore than 100 countries. The ICT variable is constructed from a principal components analysis. The explanatory variables are selected by variants of the Lasso estimator from the machine...
Persistent link: https://www.econbiz.de/10011552991
Persistent link: https://www.econbiz.de/10013441886
Persistent link: https://www.econbiz.de/10012172529
Persistent link: https://www.econbiz.de/10009544965
Persistent link: https://www.econbiz.de/10010437151
Commonly used classification and regression tree methods like the CART algorithm are recursive partitioning methods … classification and regression trees in R. Computationally intensive tasks are fully computed in C++ while the "partykit" (Hothorn and … a textbook customer classification task and a benchmark study of predictive accuracy in which "evtree" achieved at least …
Persistent link: https://www.econbiz.de/10009737522
The goals of this paper are twofold: we describe common features in data sets from motor vehicle insurance companies and we investigate a general strategy which exploits the knowledge of such features. The results of the strategy are a basis to develop insurance tariffs. The strategy is applied...
Persistent link: https://www.econbiz.de/10010516923
Persistent link: https://www.econbiz.de/10011863864
Persistent link: https://www.econbiz.de/10012581566