PLearn 0.1
MultiTargetOneHotVMatrix.h
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00001 // -*- C++ -*-
00002 
00003 // MultiTargetOneHotVMatrix.h
00004 //
00005 // Copyright (C) 2004 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 /* *******************************************************      
00036    * $Id: MultiTargetOneHotVMatrix.h,v 1.5 2005/05/13 14:55:46 delallea Exp $ 
00037    ******************************************************* */
00038 
00039 // Authors: Olivier Delalleau
00040 
00044 #ifndef MultiTargetOneHotVMatrix_INC
00045 #define MultiTargetOneHotVMatrix_INC
00046 
00047 #include <plearn/vmat/SourceVMatrix.h>
00048 
00049 namespace PLearn {
00050 using namespace std;
00051 
00052 class MultiTargetOneHotVMatrix: public SourceVMatrix
00053 {
00054 
00055 private:
00056 
00057   typedef SourceVMatrix inherited;
00058 
00059 protected:
00060 
00062   int source_inputsize;
00063 
00064   // *********************
00065   // * protected options *
00066   // *********************
00067 
00068   // Fields below are not options.
00069 
00075   Mat data;
00076 
00077 public:
00078 
00079   // ************************
00080   // * public build options *
00081   // ************************
00082 
00083   real missing_target;
00084   bool reweight_targets;
00085   VMat source_target;
00086   VMat target_descriptor;
00087   string target_val;
00088   int verbosity;
00089   real hot_value;
00090   real cold_value;
00091   VMat source_and_target;
00092 
00093   // ****************
00094   // * Constructors *
00095   // ****************
00096 
00098   MultiTargetOneHotVMatrix();
00099 
00100   // ******************
00101   // * Object methods *
00102   // ******************
00103 
00104 private: 
00105 
00107   void build_();
00108 
00109 protected: 
00110 
00112   static void declareOptions(OptionList& ol);
00113 
00116   virtual void getNewRow(int i, const Vec& v) const;
00117 
00118 public:
00119 
00120   // Simply calls inherited::build() then build_().
00121   virtual void build();
00122 
00124   virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00125 
00127   PLEARN_DECLARE_OBJECT(MultiTargetOneHotVMatrix);
00128 
00130   int getSourceInputSize() { return source_inputsize; }
00131 
00132 };
00133 
00134 DECLARE_OBJECT_PTR(MultiTargetOneHotVMatrix);
00135 
00136   inline VMat multi_target_one_hot(VMat source_and_target,real cold_value, real hot_value)
00137   {
00138     MultiTargetOneHotVMatrix* ret = new MultiTargetOneHotVMatrix();
00139     ret->source_and_target = source_and_target;
00140     ret->cold_value = cold_value;
00141     ret->hot_value = hot_value;
00142     ret->build();
00143     return ret;
00144   }
00145 
00146 } // end of namespace PLearn
00147 
00148 #endif
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