PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PLearn (A C++ Machine Learning Library) 00004 // Copyright (C) 1998 Pascal Vincent 00005 // Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal 00006 // Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux 00007 // 00008 // Redistribution and use in source and binary forms, with or without 00009 // modification, are permitted provided that the following conditions are met: 00010 // 00011 // 1. Redistributions of source code must retain the above copyright 00012 // notice, this list of conditions and the following disclaimer. 00013 // 00014 // 2. Redistributions in binary form must reproduce the above copyright 00015 // notice, this list of conditions and the following disclaimer in the 00016 // documentation and/or other materials provided with the distribution. 00017 // 00018 // 3. The name of the authors may not be used to endorse or promote 00019 // products derived from this software without specific prior written 00020 // permission. 00021 // 00022 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00023 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00024 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00025 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00027 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00033 // This file is part of the PLearn library. For more information on the PLearn 00034 // library, go to the PLearn Web site at www.plearn.org 00035 00036 00037 /* ******************************************************* 00038 * $Id: GeneralizedOneHotVMatrix.h 8916 2008-04-30 14:12:24Z nouiz $ 00039 ******************************************************* */ 00040 00041 00044 #ifndef GeneralizedOneHotVMatrix_INC 00045 #define GeneralizedOneHotVMatrix_INC 00046 00047 #include "SourceVMatrix.h" 00048 #include <plearn/math/TMat_maths.h> 00049 #include "VMat.h" 00050 00051 namespace PLearn { 00052 using namespace std; 00053 00054 00057 class GeneralizedOneHotVMatrix: public SourceVMatrix 00058 { 00059 typedef SourceVMatrix inherited; 00060 00061 protected: 00062 00064 Vec index; 00066 Vec nclasses; 00068 Vec cold_value; 00070 Vec hot_value; 00071 00072 public: 00073 // ****************** 00074 // * Constructors * 00075 // ****************** 00076 00078 GeneralizedOneHotVMatrix(bool call_build_ = false); 00079 00080 GeneralizedOneHotVMatrix(VMat the_source, Vec the_index, Vec the_nclasses, 00081 Vec the_cold_value, Vec the_hot_value, 00082 bool call_build_ = false); 00083 00084 00085 PLEARN_DECLARE_OBJECT(GeneralizedOneHotVMatrix); 00086 00087 protected: 00088 00089 virtual void getNewRow(int i, const Vec& samplevec) const; 00090 static void declareOptions(OptionList &ol); 00091 00092 public: 00093 00094 virtual void build(); 00095 00097 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00098 00099 virtual void reset_dimensions() 00100 { 00101 source->reset_dimensions(); 00102 width_ = source->width() + (int)sum(nclasses) - nclasses.length(); 00103 length_ = source->length(); 00104 } 00105 00106 private: 00107 void build_(); 00108 }; 00109 00110 DECLARE_OBJECT_PTR(GeneralizedOneHotVMatrix); 00111 00112 } // end of namespace PLearn 00113 #endif 00114 00115 00116 /* 00117 Local Variables: 00118 mode:c++ 00119 c-basic-offset:4 00120 c-file-style:"stroustrup" 00121 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00122 indent-tabs-mode:nil 00123 fill-column:79 00124 End: 00125 */ 00126 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :