Prevalence dependence in model goodness measures with special emphasis on true skill statistics.

ABSTRACT: It has long been a concern that performance measures of species distribution models react to attributes of the modeled entity arising from the input data structure rather than to model performance. Thus, the study of Allouche et al. (Journal of Applied Ecology, 43, 1223, 2006) identifying the true skill statistics (TSS) as being independent of prevalence had a great impact. However, empirical experience questioned the validity of the statement. We searched for technical reasons behind these observations. We explored possible sources of prevalence dependence in TSS including sampling constraints and species characteristics, which influence the calculation of TSS. We also examined whether the widespread solution of using the maximum of TSS for comparison among species introduces a pre

SUBMITTER: Somodi I 

PROVIDER: S-EPMC5288248 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature