PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // EpanechnikovKernel.h 00004 // 00005 // Copyright (C) 2004 Nicolas Chapados 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: EpanechnikovKernel.h 3994 2005-08-25 13:35:03Z chapados $ 00037 ******************************************************* */ 00038 00039 // Authors: Nicolas Chapados 00040 00044 #ifndef EpanechnikovKernel_INC 00045 #define EpanechnikovKernel_INC 00046 00047 #include <plearn/ker/Kernel.h> 00048 00049 namespace PLearn { 00050 00051 class EpanechnikovKernel: public Kernel 00052 { 00053 typedef Kernel inherited; 00054 00055 public: 00056 00057 // ************************ 00058 // * Public build options * 00059 // ************************ 00060 00062 real gamma; 00063 00064 // **************** 00065 // * Constructors * 00066 // **************** 00067 00069 EpanechnikovKernel(); 00070 00071 // ****************** 00072 // * Kernel methods * 00073 // ****************** 00074 00075 private: 00076 00078 // (Please implement in .cc) 00079 void build_(); 00080 00081 protected: 00082 00084 // (Please implement in .cc) 00085 static void declareOptions(OptionList& ol); 00086 00087 public: 00088 00089 // ************************ 00090 // **** Object methods **** 00091 // ************************ 00092 00094 virtual void build(); 00095 00097 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00098 00099 // Declares other standard object methods. 00100 // If your class is not instantiatable (it has pure virtual methods) 00101 // you should replace this by PLEARN_DECLARE_ABSTRACT_OBJECT_METHODS. 00102 PLEARN_DECLARE_OBJECT(EpanechnikovKernel); 00103 00104 // ************************ 00105 // **** Kernel methods **** 00106 // ************************ 00107 00109 virtual real evaluate(const Vec& x1, const Vec& x2) const; 00110 }; 00111 00112 // Declares a few other classes and functions related to this class. 00113 DECLARE_OBJECT_PTR(EpanechnikovKernel); 00114 00115 } // end of namespace PLearn 00116 00117 #endif 00118 00119 00120 /* 00121 Local Variables: 00122 mode:c++ 00123 c-basic-offset:4 00124 c-file-style:"stroustrup" 00125 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00126 indent-tabs-mode:nil 00127 fill-column:79 00128 End: 00129 */ 00130 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :