Projection Pursuit Through ϕ-Divergence Minimisation
AbstractIn his 1985 article (“Projection pursuit”), Huber demonstrates the interest of his method to estimate a density from a data set in a simple given case. He considers the factorization of density through a Gaussian component and some residual density. Huber’s work is based on maximizing Kullback–Leibler divergence. Our proposal leads to a new algorithm. Furthermore, we will also consider the case when the density to be factorized is estimated from an i.i.d. sample. We will then propose a test for the factorization of the estimated density. Applications include a new test of fit pertaining to the elliptical copulas.
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Touboul, J. Projection Pursuit Through ϕ-Divergence Minimisation. Entropy 2010, 12, 1581-1611.
Touboul J. Projection Pursuit Through ϕ-Divergence Minimisation. Entropy. 2010; 12(6):1581-1611.Chicago/Turabian Style
Touboul, Jacques. 2010. "Projection Pursuit Through ϕ-Divergence Minimisation." Entropy 12, no. 6: 1581-1611.