PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // RBMGaussianLayer.h 00004 // 00005 // Copyright (C) 2006 Dan Popovici & Pascal Lamblin 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 // Authors: Dan Popovici & Pascal Lamblin 00036 00039 #ifndef RBMGaussianLayer_INC 00040 #define RBMGaussianLayer_INC 00041 00042 #include "RBMLayer.h" 00043 00044 namespace PLearn { 00045 using namespace std; 00046 00053 class RBMGaussianLayer: public RBMLayer 00054 { 00055 typedef RBMLayer inherited; 00056 00057 public: 00058 //##### Public Build Options ############################################ 00059 00060 real min_quadratic_term; 00061 00062 00063 public: 00064 //##### Public Member Functions ######################################### 00065 00067 RBMGaussianLayer(); 00068 00070 RBMGaussianLayer( int the_size ); 00071 00072 00073 // Your other public member functions go here 00074 00077 virtual void getUnitActivations( int i, PP<RBMParameters> rbmp, 00078 int offset=0 ); 00079 00082 virtual void getAllActivations( PP<RBMParameters> rbmp, int offset=0 ) ; 00083 00085 virtual void generateSample() ; 00086 00088 virtual void computeExpectation() ; 00089 00091 virtual void bpropUpdate(const Vec& input, const Vec& output, 00092 Vec& input_gradient, const Vec& output_gradient); 00093 00094 00095 //##### PLearn::Object Protocol ######################################### 00096 00097 // Declares other standard object methods. 00098 PLEARN_DECLARE_OBJECT(RBMGaussianLayer); 00099 00100 // Simply calls inherited::build() then build_() 00101 virtual void build(); 00102 00104 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00105 00106 protected: 00107 //##### Not Options ##################################################### 00108 00109 protected: 00110 //##### Protected Member Functions ###################################### 00111 00113 static void declareOptions(OptionList& ol); 00114 00115 private: 00116 //##### Private Member Functions ######################################## 00117 00119 void build_(); 00120 00121 private: 00122 //##### Private Data Members ############################################ 00123 00124 // The rest of the private stuff goes here 00125 }; 00126 00127 // Declares a few other classes and functions related to this class 00128 DECLARE_OBJECT_PTR(RBMGaussianLayer); 00129 00130 } // end of namespace PLearn 00131 00132 #endif 00133 00134 00135 /* 00136 Local Variables: 00137 mode:c++ 00138 c-basic-offset:4 00139 c-file-style:"stroustrup" 00140 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00141 indent-tabs-mode:nil 00142 fill-column:79 00143 End: 00144 */ 00145 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :