PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PythonProcessedLearner.h 00004 // 00005 // Copyright (C) 2006 Nicolas Chapados 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: Nicolas Chapados 00036 00040 #ifndef PythonProcessedLearner_INC 00041 #define PythonProcessedLearner_INC 00042 00043 // Python includes must come first! (as per Python doc) 00044 #include <plearn/python/PythonCodeSnippet.h> 00045 00046 #include <plearn_learners/generic/PLearner.h> 00047 00048 namespace PLearn { 00049 00101 class PythonProcessedLearner : public PLearner 00102 { 00103 typedef PLearner inherited; 00104 00105 public: 00106 //##### Public Build Options ############################################ 00107 00114 string m_code; 00115 00121 map<string,string> m_params; 00122 00123 public: 00124 //##### Public Member Functions ######################################### 00125 00127 PythonProcessedLearner(); 00128 00129 00130 //##### PLearner Member Functions ####################################### 00131 00133 virtual void setTrainingSet(VMat training_set, bool call_forget=true); 00134 00137 virtual int outputsize() const; 00138 00140 virtual void forget(); 00141 00143 virtual void train(); 00144 00146 virtual void computeOutput(const Vec& input, Vec& output) const; 00147 00149 virtual void computeCostsFromOutputs(const Vec& input, const Vec& output, 00150 const Vec& target, Vec& costs) const; 00151 00153 virtual TVec<std::string> getTestCostNames() const; 00154 00156 virtual TVec<std::string> getTrainCostNames() const; 00157 00159 virtual TVec<string> getOutputNames() const; 00160 00161 00162 //##### PLearn::Object Protocol ######################################### 00163 00164 // Declares other standard object methods. 00165 PLEARN_DECLARE_OBJECT(PythonProcessedLearner); 00166 00167 // Simply calls inherited::build() then build_() 00168 virtual void build(); 00169 00171 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00172 00173 protected: 00175 static void declareOptions(OptionList& ol); 00176 00178 PythonObjectWrapper getParams(const TVec<PythonObjectWrapper>& args) const; 00179 00182 PythonObjectWrapper getParam(const TVec<PythonObjectWrapper>& args) const; 00183 00186 PythonObjectWrapper setParam(const TVec<PythonObjectWrapper>& args); 00187 00190 void compileAndInject(); 00191 00193 void setOutputNamesFromParams(); 00194 00195 protected: 00197 TVec<string> m_outputnames; 00198 00200 PP<PythonCodeSnippet> python; 00201 00202 private: 00204 void build_(); 00205 }; 00206 00207 // Declares a few other classes and functions related to this class 00208 DECLARE_OBJECT_PTR(PythonProcessedLearner); 00209 00210 } // end of namespace PLearn 00211 00212 #endif 00213 00214 00215 /* 00216 Local Variables: 00217 mode:c++ 00218 c-basic-offset:4 00219 c-file-style:"stroustrup" 00220 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00221 indent-tabs-mode:nil 00222 fill-column:79 00223 End: 00224 */ 00225 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :