PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // RBMMatrixTransposeConnection.h 00004 // 00005 // Copyright (C) 2007 Hugo Larochelle 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: Hugo Larochelle 00036 00040 #ifndef RBMMatrixTransposeConnection_INC 00041 #define RBMMatrixTransposeConnection_INC 00042 00043 #include <plearn_learners/online/RBMConnection.h> 00044 #include <plearn_learners/online/RBMMatrixConnection.h> 00045 00046 namespace PLearn { 00047 using namespace std; 00048 00049 00053 class RBMMatrixTransposeConnection: public RBMConnection 00054 { 00055 typedef RBMConnection inherited; 00056 00057 public: 00058 //##### Public Build Options ############################################ 00059 00060 //##### Learned Options ################################################# 00061 00063 Mat weights; 00064 00066 PP<RBMMatrixConnection> rbm_matrix_connection; 00067 00069 bool learn_scale; 00070 00071 //##### Not Options ##################################################### 00072 00074 real scale; 00075 00077 Mat weights_pos_stats; 00078 00080 Mat weights_neg_stats; 00081 00083 Mat weights_inc; 00084 00085 public: 00086 //##### Public Member Functions ######################################### 00087 00089 RBMMatrixTransposeConnection( 00090 PP<RBMMatrixConnection> the_rbm_matrix_connection = 0, 00091 real the_learning_rate = 0, 00092 bool call_build_ = false); 00093 00094 // Your other public member functions go here 00095 00097 virtual void accumulatePosStats( const Vec& down_values, 00098 const Vec& up_values ); 00099 00100 virtual void accumulatePosStats( const Mat& down_values, 00101 const Mat& up_values ) 00102 { 00103 PLASSERT_MSG( false, "Not implemented" ); 00104 } 00105 00107 virtual void accumulateNegStats( const Vec& down_values, 00108 const Vec& up_values ); 00109 00110 virtual void accumulateNegStats( const Mat& down_values, 00111 const Mat& up_values ) 00112 { 00113 PLASSERT_MSG( false, "Not implemented" ); 00114 } 00115 00117 virtual void update(); 00118 00121 virtual void update( const Vec& pos_down_values, 00122 const Vec& pos_up_values, 00123 const Vec& neg_down_values, 00124 const Vec& neg_up_values ); 00125 00127 virtual void clearStats(); 00128 00132 virtual void computeProduct( int start, int length, 00133 const Vec& activations, 00134 bool accumulate=false ) const; 00135 00137 virtual void computeProducts(int start, int length, 00138 Mat& activations, 00139 bool accumulate=false ) const; 00140 00151 // virtual void bpropUpdate(const Vec& input, const Vec& output, 00152 // const Vec& output_gradient); 00153 00156 virtual void bpropUpdate(const Vec& input, const Vec& output, 00157 Vec& input_gradient, 00158 const Vec& output_gradient, 00159 bool accumulate=false); 00160 00161 virtual void bpropUpdate(const Mat& inputs, const Mat& outputs, 00162 Mat& input_gradients, 00163 const Mat& output_gradients, 00164 bool accumulate = false); 00165 00169 virtual void forget(); 00170 00175 // virtual void finalize(); 00176 00178 virtual int nParameters() const; 00179 00185 virtual Vec makeParametersPointHere(const Vec& global_parameters); 00186 00187 //##### PLearn::Object Protocol ######################################### 00188 00189 // Declares other standard object methods. 00190 PLEARN_DECLARE_OBJECT(RBMMatrixTransposeConnection); 00191 00192 // Simply calls inherited::build() then build_() 00193 virtual void build(); 00194 00196 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00197 00198 protected: 00199 //##### Protected Member Functions ###################################### 00201 static void declareOptions(OptionList& ol); 00202 00203 private: 00204 //##### Private Member Functions ######################################## 00205 00207 void build_(); 00208 00209 private: 00210 //##### Private Data Members ############################################ 00211 00212 // The rest of the private stuff goes here 00213 }; 00214 00215 // Declares a few other classes and functions related to this class 00216 DECLARE_OBJECT_PTR(RBMMatrixTransposeConnection); 00217 00218 } // end of namespace PLearn 00219 00220 #endif 00221 00222 00223 /* 00224 Local Variables: 00225 mode:c++ 00226 c-basic-offset:4 00227 c-file-style:"stroustrup" 00228 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00229 indent-tabs-mode:nil 00230 fill-column:79 00231 End: 00232 */ 00233 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :