PLearn 0.1
AddLayersNNet.h
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00001 // -*- C++ -*-
00002 
00003 // AddLayersNNet.h
00004 //
00005 // Copyright (C) 2004 Olivier Delalleau 
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 /* *******************************************************      
00036  * $Id: AddLayersNNet.h 3994 2005-08-25 13:35:03Z chapados $ 
00037  ******************************************************* */
00038 
00039 // Authors: Olivier Delalleau
00040 
00044 #ifndef AddLayersNNet_INC
00045 #define AddLayersNNet_INC
00046 
00047 #include "NNet.h"
00048 
00049 namespace PLearn {
00050 using namespace std;
00051 
00052 class AddLayersNNet: public NNet {
00053 
00054 private:
00055 
00056     typedef NNet inherited;
00057   
00058 protected:
00059 
00060     // *********************
00061     // * protected options *
00062     // *********************
00063 
00064     // Fields below are not options.
00065 
00068     TVec<int> real_parts_size;
00069 
00071     VarArray hidden_layers;
00072 
00074     VarArray hidden_weights;
00075 
00076 public:
00077 
00078     // ************************
00079     // * public build options *
00080     // ************************
00081 
00082     TVec<int> add_hidden;
00083     string added_hidden_transfer_func;
00084     TVec<int> parts_size;
00085 
00086     // ****************
00087     // * Constructors *
00088     // ****************
00089 
00091     AddLayersNNet();
00092 
00093     // ********************
00094     // * PLearner methods *
00095     // ********************
00096 
00097 private: 
00098 
00100     void build_();
00101 
00102 protected: 
00103   
00105     static void declareOptions(OptionList& ol);
00106 
00107 public:
00108 
00109     // ************************
00110     // **** Object methods ****
00111     // ************************
00112 
00114     virtual void build();
00115 
00117     virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00118 
00119     // Declares other standard object methods.
00120     PLEARN_DECLARE_OBJECT(AddLayersNNet);
00121 
00122     // **************************
00123     // **** PLearner methods ****
00124     // **************************
00125 
00128     Vec getHiddenUnitsActivation(int layer);
00129 
00132     Mat getHiddenWeights(int layer);
00133 
00136     Mat getOutputHiddenWeights(int layer);
00137 
00138 protected:
00139 
00141     virtual void initializeParams(bool set_seed = true);
00142     virtual void buildPenalties(const Var& hidden_layer);
00143 
00144 };
00145 
00146 // Declares a few other classes and functions related to this class.
00147 DECLARE_OBJECT_PTR(AddLayersNNet);
00148   
00149 } // end of namespace PLearn
00150 
00151 #endif
00152 
00153 
00154 /*
00155   Local Variables:
00156   mode:c++
00157   c-basic-offset:4
00158   c-file-style:"stroustrup"
00159   c-file-offsets:((innamespace . 0)(inline-open . 0))
00160   indent-tabs-mode:nil
00161   fill-column:79
00162   End:
00163 */
00164 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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