source: trunk/yat/classifier/BootstrapSampler.h @ 1746

Last change on this file since 1746 was 1746, checked in by Peter, 13 years ago

Merged patch release 0.4.3 to the trunk. Delta 0.4.3 - 0.4.2.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 1.7 KB
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1#ifndef _theplu_yat_classifier_bootstrap_sampler_
2#define _theplu_yat_classifier_bootstrap_sampler_
3
4// $Id: BootstrapSampler.h 1746 2009-01-23 16:59:11Z peter $
5
6/*
7  Copyright (C) 2007 Jari Häkkinen, Peter Johansson
8  Copyright (C) 2008 Peter Johansson
9
10  This file is part of the yat library, http://dev.thep.lu.se/yat
11
12  The yat library is free software; you can redistribute it and/or
13  modify it under the terms of the GNU General Public License as
14  published by the Free Software Foundation; either version 3 of the
15  License, or (at your option) any later version.
16
17  The yat library is distributed in the hope that it will be useful,
18  but WITHOUT ANY WARRANTY; without even the implied warranty of
19  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20  General Public License for more details.
21
22  You should have received a copy of the GNU General Public License
23  along with yat. If not, see <http://www.gnu.org/licenses/>.
24*/
25
26#include "Sampler.h"
27
28namespace theplu {
29namespace yat {
30namespace classifier {
31
32  class Target;
33
34  /**
35     @brief Class creating trainingset and validationset using bootstrapping.
36
37     This is done in a balanced way, meaning the proportions between
38     the classes in the trainingset is equal to the proportions in the
39     whole dataset. For each class \f$ N_i \f$ samples are drawn with
40     replacement, where \f$ N_i \f$ is number of samples in class i.
41  */
42  class BootstrapSampler : public Sampler
43  {
44
45  public:
46    ///
47    /// @brief Constructor
48    ///
49    /// @a target targets.   
50    /// @a N total number of partitions.
51    ///
52    BootstrapSampler(const Target& target, const size_t N);
53
54    ///
55    /// Destructor
56    ///
57    virtual ~BootstrapSampler();
58
59  private:
60    void build(const Target& target, size_t N); 
61
62  };
63
64}}} // of namespace classifier, yat, and theplu
65
66#endif
67
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