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src
shogun
kernel
WaveletKernel.h
Go to the documentation of this file.
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* Written (W) 2011 Siddharth Kherada
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* Copyright (C) 2007-2011 Fraunhofer Institute FIRST and Max-Planck-Society
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*/
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#ifndef _WAVELETKERNEL_H___
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#define _WAVELETKERNEL_H___
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#include <
shogun/lib/common.h
>
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#include <
shogun/kernel/DotKernel.h
>
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#include <
shogun/features/DotFeatures.h
>
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namespace
shogun
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{
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class
CWaveletKernel
:
public
CDotKernel
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{
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public
:
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CWaveletKernel
();
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CWaveletKernel
(int32_t size,
float64_t
Wdilation
,
float64_t
Wtranslation
);
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CWaveletKernel
(
CDotFeatures
* l,
CDotFeatures
* r, int32_t size,
float64_t
Wdilation,
float64_t
Wtranslation);
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virtual
~CWaveletKernel
();
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virtual
bool
init
(
CFeatures
* l,
CFeatures
* r);
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virtual
void
cleanup
();
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virtual
EKernelType
get_kernel_type
() {
return
K_WAVELET
; }
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virtual
const
char
*
get_name
()
const
{
return
"WaveletKernel"
; }
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protected
:
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virtual
float64_t
compute
(int32_t idx_a, int32_t idx_b);
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protected
:
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inline
float64_t
MotherWavelet
(
float64_t
h)
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{
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return
cos(1.75*h)*exp(-h*h/2);
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}
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private
:
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void
init();
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protected
:
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float64_t
Wdilation
;
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float64_t
Wtranslation
;
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};
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}
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#endif
/* _WAVELETKERNEL_H__ */
SHOGUN
Machine Learning Toolbox - Documentation