PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // VPLCombinedLearner.h 00004 // 00005 // Copyright (C) 2005, 2006 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: VPLCombinedLearner.h 5480 2006-05-03 18:57:39Z plearner $ 00037 ******************************************************* */ 00038 00039 // Authors: Pascal Vincent 00040 00044 #ifndef VPLCombinedLearner_INC 00045 #define VPLCombinedLearner_INC 00046 00047 #include <plearn_learners/generic/PLearner.h> 00048 #include <plearn/vmat/VMatLanguage.h> 00049 00050 namespace PLearn { 00051 00052 class VPLCombinedLearner: public PLearner 00053 { 00054 00055 private: 00056 00057 typedef PLearner inherited; 00058 00059 protected: 00060 00061 VMatLanguage output_prg_; 00062 VMatLanguage costs_prg_; 00063 00064 TVec<string> outputnames_; 00065 TVec<string> costnames_; 00066 00067 mutable Vec invec_for_output_prg; 00068 mutable Vec invec_for_costs_prg; 00069 00070 TVec<int> sublearners_outputsizes; 00071 TVec<int> sublearners_ntestcosts; 00072 00073 00074 // ********************* 00075 // * protected options * 00076 // ********************* 00077 00078 TVec<string> orig_fieldnames; // fieldnames of training set 00079 int orig_inputsize; // inputsize of training set 00080 int orig_targetsize; // targetsize of training set 00081 00082 00083 public: 00084 00085 // ************************ 00086 // * public build options * 00087 // ************************ 00088 00090 TVec< PP<PLearner> > sublearners_; 00091 00092 string output_prg; 00093 string costs_prg; 00094 00095 // **************** 00096 // * Constructors * 00097 // **************** 00098 00100 // (Make sure the implementation in the .cc 00101 // initializes all fields to reasonable default values) 00102 VPLCombinedLearner(); 00103 00104 00105 // ******************** 00106 // * PLearner methods * 00107 // ******************** 00108 00109 private: 00110 00112 void build_(); 00113 00114 void initializeOutputPrograms(); 00115 void initializeCostNames(); 00116 00117 protected: 00118 00120 // (Please implement in .cc) 00121 static void declareOptions(OptionList& ol); 00122 00123 public: 00124 00125 // ************************ 00126 // **** Object methods **** 00127 // ************************ 00128 00130 virtual void build(); 00131 00133 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00134 00135 // Declares other standard object methods. 00136 // If your class is not instantiatable (it has pure virtual methods) 00137 // you should replace this by PLEARN_DECLARE_ABSTRACT_OBJECT. 00138 PLEARN_DECLARE_OBJECT(VPLCombinedLearner); 00139 00140 00141 // ************************** 00142 // **** PLearner methods **** 00143 // ************************** 00144 00145 virtual int outputsize() const; 00146 00148 virtual void setValidationSet(VMat validset); 00149 00151 virtual void setTrainStatsCollector(PP<VecStatsCollector> statscol); 00152 00154 virtual void setExperimentDirectory(const PPath& the_expdir); 00155 00157 virtual void forget(); 00158 00159 virtual void setTrainingSet(VMat training_set, bool call_forget=true); 00160 00161 virtual void train(); 00162 00163 virtual void computeOutput(const Vec& input, Vec& output) const; 00164 00165 virtual void computeOutputAndCosts(const Vec& input, const Vec& target, 00166 Vec& output, Vec& costs) const; 00167 00168 virtual void computeCostsFromOutputs(const Vec& input, const Vec& output, 00169 const Vec& target, Vec& costs) const; 00170 00171 virtual TVec<string> getOutputNames() const; 00172 00173 virtual TVec<std::string> getTestCostNames() const; 00174 00175 virtual TVec<string> getTrainCostNames() const; 00176 00177 virtual void resetInternalState(); 00178 00179 virtual bool isStatefulLearner() const; 00180 }; 00181 00182 // Declares a few other classes and functions related to this class. 00183 DECLARE_OBJECT_PTR(VPLCombinedLearner); 00184 00185 } // end of namespace PLearn 00186 00187 #endif 00188 00189 00190 /* 00191 Local Variables: 00192 mode:c++ 00193 c-basic-offset:4 00194 c-file-style:"stroustrup" 00195 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00196 indent-tabs-mode:nil 00197 fill-column:79 00198 End: 00199 */ 00200 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :