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) 1999-2002 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal 00006 // Copyright (C) 2001-2002 Nicolas Chapados, Ichiro Takeuchi, Jean-Sebastien Senecal 00007 // Copyright (C) 2002 Xiangdong Wang, Christian Dorion 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: UnfoldedFuncVariable.h 8580 2008-02-26 16:48:40Z tihocan $ 00040 * This file is part of the PLearn library. 00041 ******************************************************* */ 00042 00043 #ifndef UnfoldedFuncVariable_INC 00044 #define UnfoldedFuncVariable_INC 00045 00046 #include "NaryVariable.h" 00047 00048 namespace PLearn { 00049 using namespace std; 00050 00051 00052 class UnfoldedFuncVariable: public NaryVariable 00053 { 00054 typedef NaryVariable inherited; 00055 00056 public: 00057 //protected: 00058 Var input_matrix; 00059 Var bag_size; 00060 Func f; 00061 bool transpose; 00062 00063 TVec<VarArray> inputs; // all the input Var's 00064 TVec<Var> outputs; // and the corresponding output Var's, 00065 TVec<VarArray> f_paths; // the duplicates of f prop. path for each input/output pair: inputs[i]->outputs[i] 00066 00067 public: 00068 00070 UnfoldedFuncVariable(); 00071 00073 UnfoldedFuncVariable(Var inputmatrix, Func the_f, bool transpose, 00074 Var bagsize = (Variable*) NULL, 00075 bool call_build_ = true); 00076 00077 PLEARN_DECLARE_OBJECT(UnfoldedFuncVariable); 00078 static void declareOptions(OptionList& ol); 00079 00080 virtual void build(); 00081 00082 virtual void recomputeSize(int& l, int& w) const; 00083 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00084 virtual void fprop(); 00085 virtual void bprop(); 00086 00087 void printInfo(bool print_gradient); 00088 00089 private: 00090 void build_(); 00091 }; 00092 00093 DECLARE_OBJECT_PTR(UnfoldedFuncVariable); 00094 00095 inline Var unfoldedFunc(Var input_matrix, Func f, bool transpose = false) 00096 { return new UnfoldedFuncVariable(input_matrix, f, transpose); } 00097 00098 } // end of namespace PLearn 00099 00100 #endif 00101 00102 00103 /* 00104 Local Variables: 00105 mode:c++ 00106 c-basic-offset:4 00107 c-file-style:"stroustrup" 00108 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00109 indent-tabs-mode:nil 00110 fill-column:79 00111 End: 00112 */ 00113 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :