Continuous-time autoregressive moving average (CARMA) processes with a nonnegative kernel and driven by a nondecreasing Lévy process constitute a very general class of stationary, nonnegative ...

Nonnegative Matrix Factorization (NMF): A technique for decomposing a data matrix into two nonnegative matrices, enabling the extraction of parts‐based, interpretable features.

P. Bhimasankaram, Dibyen Majumdar, Hermitian and Nonnegative Definite Solutions of Some Matrix Equations Connected with Distribution of Quadratic Forms, Sankhyā: The Indian Journal of Statistics, ...

We apply distortion functions to bivariate survival functions for nonnegative random variables. This leads to a natural extension of univariate distortion risk measures to the multivariate setting.