Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Author "De Feis, I."
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Article
A comparative simulation study of wavelet shrinkage estimators for Poisson counts
Besbeas, P.; De Feis, I.; Sapatinas, Theofanis (2004)Using computer simulations, the finite sample performance of a number of classical and Bayesian wavelet shrinkage estimators for Poisson counts is examined. For the purpose of comparison, a variety of intensity functions, ...
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Article
Optimal testing for additivity in multiple nonparametric regression
Abramovich, F.; De Feis, I.; Sapatinas, Theofanis (2009)We consider the problem of testing for additivity in the standard multiple nonparametric regression model. We derive optimal (in the minimax sense) non- adaptive and adaptive hypothesis testing procedures for additivity ...
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Article
Wavelet density estimation for weighted data
Cutillo, L.; De Feis, I.; Nikolaidou, C.; Sapatinas, Theofanis (2014)We consider the estimation of a density function on the basis of a random sample from a weighted distribution. We propose linear and nonlinear wavelet density estimators, and provide their asymptotic formulae for mean ...