PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // RBMSparse1DMatrixConnection.h 00004 // 00005 // Copyright (C) 2008 Jerome Louradour 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: Jerome Louradour 00036 00040 #ifndef RBMSparse1DMatrixConnection_INC 00041 #define RBMSparse1DMatrixConnection_INC 00042 00043 #include "RBMMatrixConnection.h" 00044 00045 namespace PLearn { 00046 using namespace std; 00047 00048 00053 class RBMSparse1DMatrixConnection: public RBMMatrixConnection 00054 { 00055 typedef RBMMatrixConnection inherited; 00056 00057 public: 00058 //##### Public Build Options ############################################ 00059 00060 int filter_size; 00061 00062 bool enforce_positive_weights; 00063 00064 //##### Learned Options ################################################# 00065 00066 int step_size; 00067 00068 public: 00069 //##### Public Member Functions ######################################### 00070 00072 RBMSparse1DMatrixConnection( real the_learning_rate=0 ); 00073 00074 // Your other public member functions go here 00075 virtual void accumulatePosStats( const Mat& down_values, 00076 const Mat& up_values ); 00077 00078 virtual void accumulateNegStats( const Mat& down_values, 00079 const Mat& up_values ); 00080 00084 virtual void computeProducts(int start, int length, 00085 Mat& activations, 00086 bool accumulate=false ) const; 00087 00088 00091 virtual void fprop(const Vec& input, const Mat& rbm_weights, 00092 Vec& output) const; 00093 00094 virtual void bpropUpdate(const Mat& inputs, const Mat& outputs, 00095 Mat& input_gradients, 00096 const Mat& output_gradients, 00097 bool accumulate = false); 00098 00099 virtual void bpropAccUpdate(const TVec<Mat*>& ports_value, 00100 const TVec<Mat*>& ports_gradient); 00101 00102 virtual void update( const Mat& pos_down_values, 00103 const Mat& pos_up_values, 00104 const Mat& neg_down_values, 00105 const Mat& neg_up_values); 00106 00110 virtual void forget(); 00111 00113 virtual int nParameters() const; 00114 00115 virtual Mat getWeights() const; 00116 00117 // Declares other standard object methods. 00118 PLEARN_DECLARE_OBJECT(RBMSparse1DMatrixConnection); 00119 00120 // Simply calls inherited::build() then build_() 00121 virtual void build(); 00122 00123 protected: 00124 //##### Protected Member Functions ###################################### 00126 static void declareOptions(OptionList& ol); 00127 00129 static void declareMethods(RemoteMethodMap& rmm); 00130 00131 private: 00132 //##### Private Member Functions ######################################## 00133 00135 void build_(); 00136 00137 private: 00138 //##### Private Data Members ############################################ 00139 00140 // The rest of the private stuff goes here 00141 int filterStart(int idx) const; 00142 int filterSize(int idx) const; 00143 }; 00144 00145 // Declares a few other classes and functions related to this class 00146 DECLARE_OBJECT_PTR(RBMSparse1DMatrixConnection); 00147 00148 } // end of namespace PLearn 00149 00150 #endif 00151 00152 00153 /* 00154 Local Variables: 00155 mode:c++ 00156 c-basic-offset:4 00157 c-file-style:"stroustrup" 00158 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00159 indent-tabs-mode:nil 00160 fill-column:79 00161 End: 00162 */ 00163 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :