SARDY, SYLVAIN; TSENG, PAUL - In: Scandinavian Journal of Statistics 37 (2010) 2, pp. 321-337
We propose a non-linear density estimator, which is locally adaptive, like wavelet estimators, and positive everywhere, without a log- or root-transform. This estimator is based on maximizing a non-parametric log-likelihood function regularized by a total variation penalty. The smoothness is...