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: BinaryVariable.h 6505 2006-12-13 20:41:11Z tihocan $ 00040 * This file is part of the PLearn library. 00041 ******************************************************* */ 00042 00043 #ifndef BinaryVariable_INC 00044 #define BinaryVariable_INC 00045 00046 #include "VarArray.h" 00047 #include <plearn/math/TMat_maths.h> 00048 00049 namespace PLearn { 00050 using namespace std; 00051 00052 00053 class BinaryVariable: public Variable 00054 { 00055 typedef Variable inherited; 00056 00057 protected: 00058 00059 Var input1; 00060 Var input2; 00061 00062 public: 00063 BinaryVariable() {} 00064 BinaryVariable(Variable* v1, Variable* v2, int thelength, int thewidth, 00065 bool call_build_ = true); 00066 PLEARN_DECLARE_ABSTRACT_OBJECT(BinaryVariable); 00067 00068 virtual void setParents(const VarArray& parents); 00069 00070 // Simply calls inherited::build() then build_(). 00071 virtual void build(); 00072 00073 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00074 virtual bool markPath(); 00075 virtual void buildPath(VarArray& proppath); 00076 virtual VarArray sources(); 00077 virtual VarArray random_sources(); 00078 virtual VarArray ancestors(); 00079 virtual void unmarkAncestors(); 00080 virtual VarArray parents(); 00081 void printInfo(bool print_gradient) { 00082 pout << getName() << "[" << (void*)this << "] " << *this 00083 << "(" << (void*)input1 << "," << (void*)input2 00084 << ") = " << value; 00085 if (print_gradient) pout << " gradient=" << gradient; 00086 pout << endl; 00087 } 00088 virtual void resizeRValue(); 00089 00090 protected: 00091 00092 static void declareOptions(OptionList & ol); 00093 00094 private: 00095 00097 void build_(); 00098 00099 }; 00100 00101 DECLARE_OBJECT_PTR(BinaryVariable); 00102 00103 } // end of namespace PLearn 00104 00105 #endif 00106 00107 00108 /* 00109 Local Variables: 00110 mode:c++ 00111 c-basic-offset:4 00112 c-file-style:"stroustrup" 00113 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00114 indent-tabs-mode:nil 00115 fill-column:79 00116 End: 00117 */ 00118 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :