Computational Statistics & Data Analysis
An assessment of finite sample performance of adaptive methods in density estimation
Computational Statistics & Data Analysis
Density testing in a contaminated sample
Journal of Multivariate Analysis
Nonparametric density deconvolution by weighted kernel estimators
Statistics and Computing
Estimating smooth distribution function in the presence of heteroscedastic measurement errors
Computational Statistics & Data Analysis
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We consider kernel density estimation when the observations are contaminated by measurement errors. It is well-known that the success of kernel estimators depends heavily on the choice of a smoothing parameter called the bandwidth. A number of data-driven bandwidth selectors exist, but they are all global. Such techniques are appropriate when the density is relatively simple, but local bandwidth selectors can be more attractive in more complex settings. We suggest several data-driven local bandwidth selectors and illustrate via simulations the significant improvement they can bring over a global bandwidth.