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src
shogun
statistics
QuadraticTimeMMD.h
浏览该文件的文档.
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/*
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* Copyright (c) The Shogun Machine Learning Toolbox
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* Written (w) 2012-2013 Heiko Strathmann
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those
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* of the authors and should not be interpreted as representing official policies,
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* either expressed or implied, of the Shogun Development Team.
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*/
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#ifndef __QUADRACTIMEMMD_H_
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#define __QUADRACTIMEMMD_H_
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#include <
shogun/statistics/KernelTwoSampleTest.h
>
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namespace
shogun
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{
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class
CFeatures;
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class
CKernel;
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class
CCustomKernel;
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enum
EQuadraticMMDType
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{
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BIASED
,
UNBIASED
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};
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class
CQuadraticTimeMMD
:
public
CKernelTwoSampleTest
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{
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public
:
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CQuadraticTimeMMD
();
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CQuadraticTimeMMD
(
CKernel
* kernel,
CFeatures
* p_and_q,
index_t
m);
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CQuadraticTimeMMD
(
CKernel
* kernel,
CFeatures
* p,
CFeatures
* q);
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CQuadraticTimeMMD
(
CCustomKernel
* custom_kernel,
index_t
m);
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virtual
~CQuadraticTimeMMD
();
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virtual
float64_t
compute_statistic
();
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virtual
SGVector<float64_t>
compute_statistic
(
bool
multiple_kernels);
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virtual
float64_t
compute_p_value
(
float64_t
statistic);
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virtual
float64_t
compute_threshold
(
float64_t
alpha);
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virtual
const
char
*
get_name
()
const
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{
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return
"QuadraticTimeMMD"
;
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};
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virtual
EStatisticType
get_statistic_type
()
const
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{
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return
S_QUADRATIC_TIME_MMD
;
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}
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#ifdef HAVE_LAPACK
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SGVector<float64_t>
sample_null_spectrum
(
index_t
num_samples,
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index_t
num_eigenvalues);
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#endif // HAVE_LAPACK
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void
set_num_samples_sepctrum
(
index_t
num_samples_spectrum);
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void
set_num_eigenvalues_spectrum
(
index_t
num_eigenvalues_spectrum);
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void
set_statistic_type
(
EQuadraticMMDType
statistic_type);
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SGVector<float64_t>
fit_null_gamma
();
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protected
:
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virtual
float64_t
compute_unbiased_statistic
();
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virtual
float64_t
compute_biased_statistic
();
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private
:
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void
init();
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protected
:
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index_t
m_num_samples_spectrum
;
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index_t
m_num_eigenvalues_spectrum
;
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EQuadraticMMDType
m_statistic_type
;
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};
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}
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#endif
/* __QUADRACTIMEMMD_H_ */
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