PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PLearn (A C++ Machine Learning Library) 00004 // Copyright (C) 2004 Jasmin Lapalme 00005 00006 // Redistribution and use in source and binary forms, with or without 00007 // modification, are permitted provided that the following conditions are met: 00008 // 00009 // 1. Redistributions of source code must retain the above copyright 00010 // notice, this list of conditions and the following disclaimer. 00011 // 00012 // 2. Redistributions in binary form must reproduce the above copyright 00013 // notice, this list of conditions and the following disclaimer in the 00014 // documentation and/or other materials provided with the distribution. 00015 // 00016 // 3. The name of the authors may not be used to endorse or promote 00017 // products derived from this software without specific prior written 00018 // permission. 00019 // 00020 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00021 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00022 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00023 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00024 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00025 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 // 00031 // This file is part of the PLearn library. For more information on the PLearn 00032 // library, go to the PLearn Web site at www.plearn.org 00033 00034 #ifndef InsertZerosVariable_INC 00035 #define InsertZerosVariable_INC 00036 00037 #include "UnaryVariable.h" 00038 00039 namespace PLearn { 00040 using namespace std; 00041 00042 // Inserts rows of zeros 00043 class InsertZerosVariable: public UnaryVariable { 00044 typedef UnaryVariable inherited; 00045 00046 public: 00047 // Index of the rows of zeros to add 00048 TVec<int> rows; 00049 00050 public: 00052 InsertZerosVariable() {} 00053 InsertZerosVariable(Variable* input, TVec<int> rows); 00054 00055 PLEARN_DECLARE_OBJECT(InsertZerosVariable); 00056 00057 private: 00058 void build_(); 00059 00060 public: 00061 virtual void build(); 00062 virtual void recomputeSize(int& l, int& w) const; 00063 virtual void fprop(); 00064 virtual void bprop(); 00065 virtual void bbprop(); 00066 virtual void symbolicBprop(); 00067 virtual void rfprop(); 00068 inline void setInput(Var the_input){ input = the_input;} 00069 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00070 }; 00071 00072 DECLARE_OBJECT_PTR(InsertZerosVariable); 00073 00074 inline Var insert_zeros(Var v, TVec<int> the_rows) 00075 { return new InsertZerosVariable(v, the_rows); } 00076 00077 } // end of namespace PLearn 00078 00079 #endif 00080 00081 00082 /* 00083 Local Variables: 00084 mode:c++ 00085 c-basic-offset:4 00086 c-file-style:"stroustrup" 00087 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00088 indent-tabs-mode:nil 00089 fill-column:79 00090 End: 00091 */ 00092 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :