Regularization with dot-product kernels

被引:0
|
作者
Smola, AJ [1 ]
Ovári, ZL [1 ]
Williamson, RC [1 ]
机构
[1] Australian Natl Univ, Dept Engn, Canberra, ACT 2600, Australia
关键词
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper we give necessary and sufficient conditions under which kernels of dot product type k(x, y) = k(x - y) satisfy Mercer's condition and thus may be used in Support Vector Machines (SVM), Regularization Networks (RN) or Gaussian Processes (GP). In particular, we show that if the kernel is analytic (i.e. can be expanded in a Taylor series), all expansion coefficients have to be nonnegative. We give an explicit functional form for the feature map by calculating its eigenfunctions and eigenvalues.
引用
收藏
页码:308 / 314
页数:7
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