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src
shogun
kernel
SigmoidKernel.cpp
浏览该文件的文档.
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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) 1999-2010 Soeren Sonnenburg
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* Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
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* Copyright (C) 2010 Berlin Institute of Technology
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*/
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#include <
shogun/lib/common.h
>
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#include <
shogun/kernel/SigmoidKernel.h
>
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using namespace
shogun;
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CSigmoidKernel::CSigmoidKernel
() :
CDotKernel
()
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{
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init
();
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}
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CSigmoidKernel::CSigmoidKernel
(int32_t size,
float64_t
g,
float64_t
c)
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:
CDotKernel
(size)
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{
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init
();
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gamma
=g;
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coef0
=c;
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}
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CSigmoidKernel::CSigmoidKernel
(
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CDotFeatures
* l,
CDotFeatures
* r, int32_t size,
float64_t
g,
float64_t
c)
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:
CDotKernel
(size)
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{
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init
();
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gamma
=g;
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coef0
=c;
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init
(l,r);
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}
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CSigmoidKernel::~CSigmoidKernel
()
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{
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cleanup
();
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}
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void
CSigmoidKernel::cleanup
()
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{
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}
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bool
CSigmoidKernel::init(
CFeatures
* l,
CFeatures
* r)
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{
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CDotKernel::init(l, r);
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return
init_normalizer
();
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}
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void
CSigmoidKernel::init()
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{
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gamma
=0.0;
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coef0
=0.0;
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SG_ADD
(&
gamma
,
"gamma"
,
"Gamma."
,
MS_AVAILABLE
);
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SG_ADD
(&
coef0
,
"coef0"
,
"Coefficient 0."
,
MS_AVAILABLE
);
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}
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