Title
Theoretical analyses on a class of nested RKHS's.
Abstract
One of central topics of kernel machines in the field of machine learning is a model selection, especially a selection of a kernel or its parameters. In our previous work, we discussed a class of kernels forming a class of nested reproducing kernel Hilbert spaces with an invariant metric; and proved that the kernel corresponding to the smallest reproducing kernel Hilbert space, including an unknown true function, gives the optimal model. In this paper, we consider a class of kernels forming a class of nested reproducing kernel Hilbert spaces whose metrics are not always invariant and show that a similar result to the invariant case is not obtained by providing a counter example using a class of Gaussian kernels.
Year
DOI
Venue
2011
10.1109/ICASSP.2011.5946733
ICASSP
Keywords
Field
DocType
Gaussian processes,Hilbert spaces,learning (artificial intelligence),Gaussian kernels,RKHS,invariant metrics,kernel Hilbert spaces,kernel machines,machine learning,model selection,generalization ability,kernel machine,metric,model space,reproducing kernel Hilbert space
Mathematical optimization,Kernel embedding of distributions,Kernel principal component analysis,Polynomial kernel,Representer theorem,String kernel,Variable kernel density estimation,Reproducing kernel Hilbert space,Mathematics,Kernel (statistics)
Conference
ISSN
Citations 
PageRank 
1520-6149
7
0.65
References 
Authors
7
4
Name
Order
Citations
PageRank
Akira Tanaka13812.20
Hideyuki Imai210325.08
Mineichi Kudo3927116.09
Masaaki Miyakoshi49920.27