PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // RBMMixedLayer.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 00040 #ifndef RBMMixedLayer_INC 00041 #define RBMMixedLayer_INC 00042 00043 #include "RBMLayer.h" 00044 00045 namespace PLearn { 00046 using namespace std; 00047 00054 class RBMMixedLayer: public RBMLayer 00055 { 00056 typedef RBMLayer inherited; 00057 00058 public: 00059 //##### Public Build Options ############################################ 00060 00062 TVec< PP<RBMLayer> > sub_layers; 00063 00064 00065 public: 00066 //##### Public Member Functions ######################################### 00067 00069 RBMMixedLayer(); 00070 00072 RBMMixedLayer( TVec< PP<RBMLayer> > the_sub_layers ); 00073 00074 00075 // Your other public member functions go here 00076 00079 virtual void getUnitActivations( int i, PP<RBMParameters> rbmp, 00080 int offset=0 ); 00081 00084 virtual void getAllActivations( PP<RBMParameters> rbmp, int offset=0 ) ; 00085 00087 virtual void generateSample() ; 00088 00090 virtual void computeExpectation() ; 00091 00093 virtual void bpropUpdate(const Vec& input, const Vec& output, 00094 Vec& input_gradient, const Vec& output_gradient); 00095 00096 //##### PLearn::Object Protocol ######################################### 00097 00098 // Declares other standard object methods. 00099 PLEARN_DECLARE_OBJECT(RBMMixedLayer); 00100 00101 // Simply calls inherited::build() then build_() 00102 virtual void build(); 00103 00105 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00106 00107 protected: 00108 00110 TVec<int> init_positions; 00111 00113 TVec<int> layer_of_unit; 00114 00116 int n_layers; 00117 00118 //##### Not Options ##################################################### 00119 00120 protected: 00121 //##### Protected Member Functions ###################################### 00122 00124 static void declareOptions(OptionList& ol); 00125 00126 private: 00127 //##### Private Member Functions ######################################## 00128 00130 void build_(); 00131 00132 private: 00133 //##### Private Data Members ############################################ 00134 00135 // The rest of the private stuff goes here 00136 }; 00137 00138 // Declares a few other classes and functions related to this class 00139 DECLARE_OBJECT_PTR(RBMMixedLayer); 00140 00141 } // end of namespace PLearn 00142 00143 #endif 00144 00145 00146 /* 00147 Local Variables: 00148 mode:c++ 00149 c-basic-offset:4 00150 c-file-style:"stroustrup" 00151 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00152 indent-tabs-mode:nil 00153 fill-column:79 00154 End: 00155 */ 00156 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :