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http://dx.doi.org/10.5351/CSAM.2014.21.4.317

Global and Local Views of the Hilbert Space Associated to Gaussian Kernel  

Huh, Myung-Hoe (Department of Statistics, Korea University)
Publication Information
Communications for Statistical Applications and Methods / v.21, no.4, 2014 , pp. 317-325 More about this Journal
Abstract
Consider a nonlinear transform ${\Phi}(x)$ of x in $\mathbb{R}^p$ to Hilbert space H and assume that the dot product between ${\Phi}(x)$ and ${\Phi}(x^{\prime})$ in H is given by < ${\Phi}(x)$, ${\Phi}(x^{\prime})$ >= K(x, x'). The aim of this paper is to propose a mathematical technique to take screen shots of the multivariate dataset mapped to Hilbert space H, particularly suited to Gaussian kernel $K({\cdot},{\cdot})$, which is defined by $K(x,x^{\prime})={\exp}(-{\sigma}{\parallel}x-x^{\prime}{\parallel}^2)$, ${\sigma}$ > 0. Several numerical examples are given.
Keywords
Data visualization; Hilbert space; Gaussian kernel; principal component analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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