PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // ManifoldParzen.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 ManifoldParzen_INC 00041 #define ManifoldParzen_INC 00042 00043 #include <plearn/vmat/ClassSubsetVMatrix.h> 00044 #include <plearn_learners/generic/PLearner.h> 00045 00046 namespace PLearn { 00047 00051 class ManifoldParzen : public PLearner 00052 { 00053 typedef PLearner inherited; 00054 00055 public: 00056 //##### Public Build Options ############################################ 00057 00060 int nneighbors; 00061 00063 int ncomponents; 00064 00066 real global_lambda0; 00067 00069 bool learn_mu; 00070 00072 int nclasses; 00073 00074 public: 00075 //##### Public Member Functions ######################################### 00076 00078 ManifoldParzen(); 00079 00080 //##### PLearner Member Functions ####################################### 00081 00084 virtual int outputsize() const; 00085 00089 virtual void forget(); 00090 00094 virtual void train(); 00095 00097 virtual void computeOutput(const Vec& input, Vec& output) const; 00098 00100 virtual void computeCostsFromOutputs(const Vec& input, const Vec& output, 00101 const Vec& target, Vec& costs) const; 00102 00105 virtual TVec<std::string> getTestCostNames() const; 00106 00109 virtual TVec<std::string> getTrainCostNames() const; 00110 00118 virtual void setTrainingSet(VMat training_set, bool call_forget=true); 00119 00120 //##### PLearn::Object Protocol ######################################### 00121 00122 // Declares other standard object methods. 00123 // ### If your class is not instantiatable (it has pure virtual methods) 00124 // ### you should replace this by PLEARN_DECLARE_ABSTRACT_OBJECT_METHODS 00125 PLEARN_DECLARE_OBJECT(ManifoldParzen); 00126 00127 // Simply calls inherited::build() then build_() 00128 virtual void build(); 00129 00131 // (PLEASE IMPLEMENT IN .cc) 00132 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00133 00134 protected: 00135 //##### Not Options ##################################################### 00136 00138 mutable Vec mu; 00139 00141 mutable Mat Ut, U, V; 00142 mutable Vec diff_neighbor_input, uk, sm_svd, S, diff; 00143 00144 // Saved components of manifold parzen windows 00146 mutable TVec<Mat> eigenvectors; 00148 mutable Mat eigenvalues; 00150 mutable Vec sigma_noises; 00152 mutable Mat mus; 00153 00155 TVec< PP<ClassSubsetVMatrix> > class_datasets; 00156 00159 //Vec class_proportions; 00160 00162 TMat<int> nearest_neighbors_indices; 00163 00165 mutable Vec test_votes; 00166 00167 protected: 00168 //##### Protected Member Functions ###################################### 00169 00171 static void declareOptions(OptionList& ol); 00172 00173 private: 00174 //##### Private Member Functions ######################################## 00175 00177 void build_(); 00178 00179 private: 00180 //##### Private Data Members ############################################ 00181 00182 // The rest of the private stuff goes here 00183 }; 00184 00185 // Declares a few other classes and functions related to this class 00186 DECLARE_OBJECT_PTR(ManifoldParzen); 00187 00188 } // end of namespace PLearn 00189 00190 #endif 00191 00192 00193 /* 00194 Local Variables: 00195 mode:c++ 00196 c-basic-offset:4 00197 c-file-style:"stroustrup" 00198 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00199 indent-tabs-mode:nil 00200 fill-column:79 00201 End: 00202 */ 00203 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :