Volume no :51, Issue no: 1, May (2018)

NEW APPROACH FOR BANDWIDTH SELECTION IN THE KERNEL DENSITY ESTIMATION BASED ON

Author's: Hamza Dhaker, Papa Ngom, El Hadji Deme and Malick Mbodj
Pages: [57] - [83]
Received Date: April 25, 2018; Revised May 14, 2018
Submitted by:
DOI: http://dx.doi.org/10.18642/jmsaa_7100121962

Abstract

The choice of bandwidth is crucial to the kernel density estimation (KDE). Various bandwidth selection methods for KDE, least squares cross-validation (LSCV) and Kullback-Leibler cross-validation are proposed. We propose a method to select the optimal bandwidth for the KDE. The idea behind this method is to generalize the LSCV method, using the measure of and to see the improvement in our method, we will compare these bandwidth selector with a normal reference (NR), the last squares cross-validation (LSCV), the Sheather and Jones (SJ) method, and the generalized bandwidth selector, on simulated data. The use of the various practical bandwidth selectors is illustrated on a real data example.

Keywords

nonparametric density estimation, measure divergence, integrated squared error, bandwidth.