Results 21 to 30 of about 19,319 (259)

Nonparametric Estimation of Risk-Neutral Densities [PDF]

open access: yesSSRN Electronic Journal, 2010
This chapter deals with nonparametric estimation of the risk neutral density. We present three different approaches which do not require parametric functional assumptions on the underlying asset price dynamics nor on the distributional form of the risk neutral density.
Maria Grith   +2 more
openaire   +2 more sources

Clustering via Nonparametric Density Estimation: The R Package pdfCluster

open access: yesJournal of Statistical Software, 2014
The R package pdfCluster performs cluster analysis based on a nonparametric estimate of the density of the observed variables. Functions are provided to encompass the whole process of clustering, from kernel density estimation, to clustering itself and ...
Adelchi Azzalini, Giovanna Menardi
doaj   +1 more source

Quasar Identification Using Multivariate Probability Density Estimated from Nonparametric Conditional Probabilities

open access: yesMathematics, 2022
Nonparametric estimation for a probability density function that describes multivariate data has typically been addressed by kernel density estimation (KDE).
Jenny Farmer   +2 more
doaj   +1 more source

Nonparametric Copula Density Estimation Methodologies

open access: yesMathematics
This paper proposes several methodologies whose objective consists of securing copula density estimates. More specifically, this aim will be achieved by differentiating bivariate least-squares polynomials fitted to Deheuvels’ empirical copulas, by making
Serge B. Provost, Yishan Zang
doaj   +1 more source

Fast Nonparametric Conditional Density Estimation

open access: yesCoRR, 2012
Appears in Proceedings of the Twenty-Third Conference on Uncertainty in Artificial Intelligence (UAI2007)
Michael P. Holmes   +2 more
openaire   +3 more sources

Radar Target Recognition Based on Semiparametric Density Estimation of SLC

open access: yesLeida xuebao, 2012
In order to solve the problem of the decline of accuracy when using the nonparametric method—Stochastic Learning of the Cumulative (SLC) to estimate the density of High-Resolution Range Profile (HRRP) in radar target recognition under the condition that ...
Cui Shan-shan   +2 more
doaj   +1 more source

Nonparametric Kernel Density Estimation Near the Boundary [PDF]

open access: yesSSRN Electronic Journal, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Peter Malec, Melanie Schienle
openaire   +4 more sources

Convex Optimization in R

open access: yesJournal of Statistical Software, 2014
Convex optimization now plays an essential role in many facets of statistics. We briefly survey some recent developments and describe some implementations of these methods in R .
Roger Koenker, Ivan Mizera
doaj   +1 more source

Nonparametric density estimation for stratified samples [PDF]

open access: yesStatistics & Probability Letters, 2008
We consider a weighted, nonparametric density estimator for stratified samples. We derive the optimal bandwidth using information on within-stratum variances and means. We provide a plug-in bandwidth when all strata are normally distributed. We show that the optimal sampling scheme is stratified sampling proportional to size, irrespective of the ...
openaire   +2 more sources

Legendre polynomial order selection in projection pursuit density estimation

open access: yesLietuvos Matematikos Rinkinys, 2013
Projection pursuit method and its application to probability density estimation is discussed. Method proposed by J.H. Friedman, based on projection density estimation using orthogonal Legendre polynomials, is analysed.
Mindaugas Kavaliauskas
doaj   +1 more source

Home - About - Disclaimer - Privacy