SHOGUN  3.2.1
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
MMDKernelSelection.cpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) The Shogun Machine Learning Toolbox
3  * Written (w) 2012-2013 Heiko Strathmann
4  * Written (w) 2014 Soumyajit De
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright notice, this
11  * list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright notice,
13  * this list of conditions and the following disclaimer in the documentation
14  * and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  *
27  * The views and conclusions contained in the software and documentation are those
28  * of the authors and should not be interpreted as representing official policies,
29  * either expressed or implied, of the Shogun Development Team.
30  */
31 
37 
38 using namespace shogun;
39 
41 {
42 }
43 
45  : CKernelSelection(mmd)
46 {
47  /* ensure that mmd contains an instance of a MMD related class
48  TODO - Add S_BTEST_MMD when feature/mmd is merged with develop */
51  "Provided instance for kernel two sample testing has to be a MMD-"
52  "based class! The provided is of class \"%s\"\n", mmd->get_name());
53 }
54 
56 {
57 }
58 
60 {
61  SG_DEBUG("entering\n")
62 
63  /* compute measures and return single kernel with maximum measure */
65 
66  /* find maximum and return corresponding kernel */
67  float64_t max=measures[0];
68  index_t max_idx=0;
69  for (index_t i=1; i<measures.vlen; ++i)
70  {
71  if (measures[i]>max)
72  {
73  max=measures[i];
74  max_idx=i;
75  }
76  }
77 
78  /* find kernel with corresponding index */
80  CKernel* current=combined->get_kernel(max_idx);
81 
82  SG_UNREF(combined);
83  SG_DEBUG("leaving\n");
84 
85  /* current is not SG_UNREF'ed nor SG_REF'ed since the counter needs to be
86  * incremented exactly by one */
87  return current;
88 }
89 

SHOGUN Machine Learning Toolbox - Documentation