PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // ClassSubsetVMatrix.h 00004 // 00005 // Copyright (C) 2004 Olivier Delalleau 00006 // 00007 // Redistribution and use in source and binary forms, with or without 00008 // modification, are permitted provided that the following conditions are met: 00009 // 00010 // 1. Redistributions of source code must retain the above copyright 00011 // notice, this list of conditions and the following disclaimer. 00012 // 00013 // 2. Redistributions in binary form must reproduce the above copyright 00014 // notice, this list of conditions and the following disclaimer in the 00015 // documentation and/or other materials provided with the distribution. 00016 // 00017 // 3. The name of the authors may not be used to endorse or promote 00018 // products derived from this software without specific prior written 00019 // permission. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 // 00032 // This file is part of the PLearn library. For more information on the PLearn 00033 // library, go to the PLearn Web site at www.plearn.org 00034 00035 /* ******************************************************* 00036 * $Id: ClassSubsetVMatrix.h 3760 2005-07-11 17:27:18Z tihocan $ 00037 ******************************************************* */ 00038 00039 // Authors: Hugo Larochelle 00040 00044 #ifndef ClassSubsetVMatrix_INC 00045 #define ClassSubsetVMatrix_INC 00046 00047 #include "SelectRowsVMatrix.h" 00048 00049 namespace PLearn { 00050 using namespace std; 00051 00052 class ClassSubsetVMatrix: public SelectRowsVMatrix 00053 { 00054 00055 private: 00056 00057 typedef SelectRowsVMatrix inherited; 00058 00059 Vec input,target; 00060 real weight; 00061 protected: 00062 00063 // ********************* 00064 // * protected options * 00065 // ********************* 00066 00067 public: 00068 00069 // ************************ 00070 // * public build options * 00071 // ************************ 00072 00074 TVec<int> classes; 00075 00079 bool redistribute_classes; 00080 00083 bool one_vs_minus_one_classification; 00084 00085 // **************** 00086 // * Constructors * 00087 // **************** 00088 00090 ClassSubsetVMatrix(); 00091 00095 ClassSubsetVMatrix(VMat the_source, const TVec<int>& the_classes, 00096 bool call_build_ = true); 00097 00099 ClassSubsetVMatrix(VMat the_source, int the_class, bool call_build_ = true); 00100 00101 // ****************** 00102 // * Object methods * 00103 // ****************** 00104 00105 private: 00106 00108 void build_(); 00109 00110 protected: 00111 00113 static void declareOptions(OptionList& ol); 00114 00115 public: 00116 00117 // Simply calls inherited::build() then build_(). 00118 virtual void build(); 00119 00120 virtual real get(int i, int j) const; 00121 virtual void getSubRow(int i, int j, Vec v) const; 00122 00123 00125 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00126 00128 PLEARN_DECLARE_OBJECT(ClassSubsetVMatrix); 00129 00130 }; 00131 00132 DECLARE_OBJECT_PTR(ClassSubsetVMatrix); 00133 00134 } // end of namespace PLearn 00135 00136 #endif