PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PLearn (A C++ Machine Learning Library) 00004 // Copyright (C) 1998 Pascal Vincent 00005 // Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal 00006 // Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux 00007 // Copyright (C) 2003 Olivier Delalleau 00008 // 00009 // Redistribution and use in source and binary forms, with or without 00010 // modification, are permitted provided that the following conditions are met: 00011 // 00012 // 1. Redistributions of source code must retain the above copyright 00013 // notice, this list of conditions and the following disclaimer. 00014 // 00015 // 2. Redistributions in binary form must reproduce the above copyright 00016 // notice, this list of conditions and the following disclaimer in the 00017 // documentation and/or other materials provided with the distribution. 00018 // 00019 // 3. The name of the authors may not be used to endorse or promote 00020 // products derived from this software without specific prior written 00021 // permission. 00022 // 00023 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00024 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00025 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00026 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00027 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00028 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00029 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00030 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00031 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00032 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00033 // 00034 // This file is part of the PLearn library. For more information on the PLearn 00035 // library, go to the PLearn Web site at www.plearn.org 00036 00037 00038 /* ****************************************************************** 00039 * $Id: MissingIndicatorVMatrix.h 3658 2005-07-06 20:30:15 Godbout $ 00040 ****************************************************************** */ 00041 00044 #ifndef MissingIndicatorVMatrix_INC 00045 #define MissingIndicatorVMatrix_INC 00046 00047 #include <plearn/vmat/SourceVMatrix.h> 00048 #include <plearn/math/BottomNI.h> 00049 00050 namespace PLearn { 00051 using namespace std; 00052 00053 class MissingIndicatorVMatrix: public VMatrix 00054 { 00055 typedef VMatrix inherited; 00056 00057 public: 00058 00060 VMat source; 00061 00065 VMat train_set; 00066 00069 real number_of_train_samples_to_use; 00070 00072 TVec<string> fields; 00073 string save_fields_with_missing; 00074 00075 MissingIndicatorVMatrix(); 00076 MissingIndicatorVMatrix(VMat the_source, VMat the_train_set, real the_number_of_train_samples_to_use); 00077 virtual ~MissingIndicatorVMatrix(); 00078 00079 static void declareOptions(OptionList &ol); 00080 00081 virtual void build(); 00082 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00083 00084 virtual void getExample(int i, Vec& input, Vec& target, real& weight); 00085 virtual real get(int i, int j) const; 00086 virtual void getColumn(int i, Vec v) const; 00087 00088 private: 00089 00090 int source_inputsize; 00091 Vec source_input; 00092 TVec<int> source_rel_pos; 00093 00094 void build_(); 00095 void buildNewRecordFormat(); 00096 00097 PLEARN_DECLARE_OBJECT(MissingIndicatorVMatrix); 00098 00099 }; 00100 00101 DECLARE_OBJECT_PTR(MissingIndicatorVMatrix); 00102 00103 } // end of namespcae PLearn 00104 #endif