PLearn 0.1
|
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 // Copyright (C) 2003, 2006 Olivier Delalleau 00008 // 00009 // Redistribution and use in source and binary forms, with or without 00010 // modification, are permitted provided that the following conditions are met: 00011 // 00012 // 1. Redistributions of source code must retain the above copyright 00013 // notice, this list of conditions and the following disclaimer. 00014 // 00015 // 2. Redistributions in binary form must reproduce the above copyright 00016 // notice, this list of conditions and the following disclaimer in the 00017 // documentation and/or other materials provided with the distribution. 00018 // 00019 // 3. The name of the authors may not be used to endorse or promote 00020 // products derived from this software without specific prior written 00021 // permission. 00022 // 00023 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00024 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00025 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00026 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00027 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00028 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00029 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00030 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00031 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00032 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00033 // 00034 // This file is part of the PLearn library. For more information on the PLearn 00035 // library, go to the PLearn Web site at www.plearn.org 00036 00037 00038 /* ****************************************************************** 00039 * $Id: MeanImputationVMatrix.h 3658 2005-07-06 20:30:15 Godbout $ 00040 ****************************************************************** */ 00041 00042 00045 #ifndef MeanImputationVMatrix_INC 00046 #define MeanImputationVMatrix_INC 00047 00048 #include "SourceVMatrix.h" 00049 #include <plearn_learners/distributions/PDistribution.h> 00050 00051 namespace PLearn { 00052 using namespace std; 00053 00055 00056 class MeanImputationVMatrix: public SourceVMatrix 00057 { 00058 typedef SourceVMatrix inherited; 00059 00060 private: 00061 00062 bool obtained_inputsize_from_source; 00063 bool obtained_targetsize_from_source; 00064 bool obtained_weightsize_from_source; 00065 00068 mutable Vec cond_mean; 00069 00070 Vec variable_mean; 00071 00073 mutable Vec tmp_target; 00074 00075 public: 00076 00077 PP<PDistribution> distribution; 00078 string distribution_access_to_target; 00079 real number_of_train_samples; 00080 VMat mean_source; 00081 00082 public: 00083 00084 MeanImputationVMatrix(); 00085 MeanImputationVMatrix(VMat the_source, 00086 real the_number_of_train_samples = 0.0, 00087 bool call_build_ = true); 00088 00089 00090 00091 virtual void build(); 00092 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00093 00094 protected: 00095 00096 static void declareOptions(OptionList &ol); 00097 00098 public: 00099 00100 virtual void getNewRow(int i, const Vec& v) const; 00101 00102 Vec getMeanVector(); 00103 00104 private: 00105 00106 void build_(); 00107 void computeMeanVector(); 00108 00109 PLEARN_DECLARE_OBJECT(MeanImputationVMatrix); 00110 00111 }; 00112 00113 DECLARE_OBJECT_PTR(MeanImputationVMatrix); 00114 00115 } // end of namespace PLearn 00116 #endif 00117 00118 00119 /* 00120 Local Variables: 00121 mode:c++ 00122 c-basic-offset:4 00123 c-file-style:"stroustrup" 00124 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00125 indent-tabs-mode:nil 00126 fill-column:79 00127 End: 00128 */ 00129 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :