PLearn 0.1
|
00001 // -*- C++ -*- 00002 00003 // VPLPreprocessedLearner.h 00004 // 00005 // Copyright (C) 2005 Pascal Vincent 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: VPLPreprocessedLearner.h 7042 2007-05-09 23:44:20Z saintmlx $ 00037 ******************************************************* */ 00038 00039 // Authors: Pascal Vincent 00040 00044 #ifndef VPLPreprocessedLearner_INC 00045 #define VPLPreprocessedLearner_INC 00046 00047 #include <plearn_learners/generic/PLearner.h> 00048 #include <plearn/vmat/VMatLanguage.h> 00049 00050 namespace PLearn { 00051 00052 class VPLPreprocessedLearner: public PLearner 00053 { 00054 00055 private: 00056 00057 typedef PLearner inherited; 00058 00059 protected: 00060 00061 // ********************* 00062 // * protected options * 00063 // ********************* 00064 00065 // ### declare protected option fields (such as learnt parameters) here 00066 PP<VMatLanguage> row_prg; 00067 PP<VMatLanguage> input_prg; 00068 PP<VMatLanguage> output_prg; 00069 PP<VMatLanguage> costs_prg; 00070 00071 TVec<string> row_prg_fieldnames; 00072 TVec<string> input_prg_fieldnames; 00073 TVec<string> output_prg_fieldnames; 00074 TVec<string> costs_prg_fieldnames; 00075 00076 mutable Vec row; 00077 mutable Vec processed_row; 00078 mutable Vec processed_input; 00079 mutable Vec pre_output; 00080 mutable Vec pre_costs; 00081 00082 public: 00083 00084 // ************************ 00085 // * public build options * 00086 // ************************ 00087 00089 PP<PLearner> learner_; 00090 00091 string trainset_preproc; // program string in VPL language to be applied to each row of the training set 00092 int newtargetsize; 00093 int newweightsize; 00094 int newextrasize; 00095 00096 string input_preproc; // program string in VPL language to be applied to an input 00097 string output_postproc; 00098 string costs_postproc; 00099 00100 // **************** 00101 // * Constructors * 00102 // **************** 00103 00105 // (Make sure the implementation in the .cc 00106 // initializes all fields to reasonable default values) 00107 VPLPreprocessedLearner(); 00108 00109 00110 // ******************** 00111 // * PLearner methods * 00112 // ******************** 00113 00114 private: 00115 00117 // (Please implement in .cc) 00118 void build_(); 00119 00120 protected: 00121 00123 // (Please implement in .cc) 00124 static void declareOptions(OptionList& ol); 00125 00126 public: 00127 00128 // ************************ 00129 // **** Object methods **** 00130 // ************************ 00131 00133 virtual void build(); 00134 00136 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00137 00138 // Declares other standard object methods. 00139 // If your class is not instantiatable (it has pure virtual methods) 00140 // you should replace this by PLEARN_DECLARE_ABSTRACT_OBJECT. 00141 PLEARN_DECLARE_OBJECT(VPLPreprocessedLearner); 00142 00143 00144 // ************************** 00145 // **** PLearner methods **** 00146 // ************************** 00147 00148 virtual int outputsize() const; 00149 00150 00152 virtual void setValidationSet(VMat validset); 00153 00155 virtual void setTrainStatsCollector(PP<VecStatsCollector> statscol); 00156 00158 virtual void setExperimentDirectory(const PPath& the_expdir); 00159 00161 virtual void forget(); 00162 00163 virtual void setTrainingSet(VMat training_set, bool call_forget=true); 00164 00165 virtual void train(); 00166 00167 virtual void computeOutput(const Vec& input, Vec& output) const; 00168 00169 virtual void computeOutputAndCosts(const Vec& input, const Vec& target, 00170 Vec& output, Vec& costs) const; 00171 00172 virtual void computeCostsFromOutputs(const Vec& input, const Vec& output, 00173 const Vec& target, Vec& costs) const; 00174 00175 virtual 00176 bool computeConfidenceFromOutput(const Vec& input, const Vec& output, 00177 real probability, 00178 TVec< pair<real,real> >& intervals) const; 00179 00182 virtual TVec<string> getOutputNames() const; 00183 00184 virtual TVec<std::string> getTestCostNames() const; 00185 00187 virtual TVec<string> getTrainCostNames() const; 00188 00190 virtual void resetInternalState(); 00191 00193 virtual bool isStatefulLearner() const; 00194 }; 00195 00196 // Declares a few other classes and functions related to this class. 00197 DECLARE_OBJECT_PTR(VPLPreprocessedLearner); 00198 00199 } // end of namespace PLearn 00200 00201 #endif 00202 00203 00204 /* 00205 Local Variables: 00206 mode:c++ 00207 c-basic-offset:4 00208 c-file-style:"stroustrup" 00209 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00210 indent-tabs-mode:nil 00211 fill-column:79 00212 End: 00213 */ 00214 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :