PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // GaussianizeVMatrix.h 00004 // 00005 // Copyright (C) 2006 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 // Authors: Olivier Delalleau 00036 00040 #ifndef GaussianizeVMatrix_INC 00041 #define GaussianizeVMatrix_INC 00042 00043 #include <plearn/vmat/SourceVMatrix.h> 00044 00045 namespace PLearn { 00046 00057 class GaussianizeVMatrix : public SourceVMatrix 00058 { 00059 typedef SourceVMatrix inherited; 00060 00061 public: 00062 //##### Public Build Options ############################################ 00063 00066 00067 bool gaussianize_input; 00068 bool gaussianize_target; 00069 bool gaussianize_weight; 00070 bool gaussianize_extra; 00071 bool gaussianize_binary; 00072 real threshold_ratio; 00073 bool save_and_reuse_stats; 00074 VMat train_source; 00075 string stats_file_to_use; 00076 TVec<int> fields_to_gaussianize; 00077 PPath save_fields_gaussianized; 00078 00079 public: 00080 //##### Public Member Functions ######################################### 00081 00083 // ### Make sure the implementation in the .cc 00084 // ### initializes all fields to reasonable default values. 00085 GaussianizeVMatrix(); 00086 00087 00088 //##### PLearn::Object Protocol ######################################### 00089 00090 // Declares other standard object methods. 00091 // ### If your class is not instantiatable (it has pure virtual methods) 00092 // ### you should replace this by PLEARN_DECLARE_ABSTRACT_OBJECT_METHODS 00093 PLEARN_DECLARE_OBJECT(GaussianizeVMatrix); 00094 00095 // Simply calls inherited::build() then build_() 00096 virtual void build(); 00097 00099 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00100 00101 00103 real unGauss(real value, int col)const; 00104 void unGauss(Vec& values, Vec& ret, int col)const; 00105 00106 protected: 00107 00109 TVec<int> features_to_gaussianize; 00110 00111 TVec<int> fields_gaussianized; 00112 00114 Vec scaling_factor; 00115 00118 TVec<Vec> values; 00119 00120 protected: 00121 //##### Protected Member Functions ###################################### 00122 00124 static void declareOptions(OptionList& ol); 00125 00127 static void declareMethods(RemoteMethodMap& rmm); 00128 00132 virtual void getNewRow(int i, const Vec& v) const; 00133 00134 private: 00135 //##### Private Member Functions ######################################## 00136 00138 void build_(); 00139 virtual void setMetaDataDir(const PPath& the_metadatadir); 00140 real remote_unGauss(real input, int col)const; 00141 Vec remote_unGauss_vec(Vec inputs, int col) const; 00142 void append_col_to_gaussianize(int col, StatsCollector stat); 00143 private: 00144 //##### Private Data Members ############################################ 00145 00146 // The rest of the private stuff goes here 00147 }; 00148 00149 // Declares a few other classes and functions related to this class 00150 DECLARE_OBJECT_PTR(GaussianizeVMatrix); 00151 00152 } // end of namespace PLearn 00153 00154 #endif 00155 00156 00157 /* 00158 Local Variables: 00159 mode:c++ 00160 c-basic-offset:4 00161 c-file-style:"stroustrup" 00162 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00163 indent-tabs-mode:nil 00164 fill-column:79 00165 End: 00166 */ 00167 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :