PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PartsDistanceKernel.h 00004 // Copyright (C) 2008 Pascal Vincent 00005 // 00006 // Redistribution and use in source and binary forms, with or without 00007 // modification, are permitted provided that the following conditions are met: 00008 // 00009 // 1. Redistributions of source code must retain the above copyright 00010 // notice, this list of conditions and the following disclaimer. 00011 // 00012 // 2. Redistributions in binary form must reproduce the above copyright 00013 // notice, this list of conditions and the following disclaimer in the 00014 // documentation and/or other materials provided with the distribution. 00015 // 00016 // 3. The name of the authors may not be used to endorse or promote 00017 // products derived from this software without specific prior written 00018 // permission. 00019 // 00020 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00021 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00022 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00023 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00024 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00025 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 // 00031 // This file is part of the PLearn library. For more information on the PLearn 00032 // library, go to the PLearn Web site at www.plearn.org 00033 00037 /* ******************************************************* 00038 * $Id: PartsDistanceKernel.h 7664 2007-06-28 19:47:30Z nouiz $ 00039 * This file is part of the PLearn library. 00040 ******************************************************* */ 00041 00042 #ifndef PartsDistanceKernel_INC 00043 #define PartsDistanceKernel_INC 00044 00045 #include <plearn/ker/Kernel.h> 00046 00047 namespace PLearn { 00048 using namespace std; 00049 00051 class PartsDistanceKernel: public Kernel 00052 { 00053 00054 private: 00055 00056 typedef Kernel inherited; 00057 00058 public: 00059 00060 real partsize; 00061 real n; 00062 bool standardize; 00063 real min_stddev; 00064 real epsilon; 00065 bool pow_distance; 00066 00067 Vec inv_stddev; 00068 00069 PartsDistanceKernel(); 00070 00071 virtual void train(VMat data); 00072 virtual real evaluate(const Vec& x1, const Vec& x2) const; 00073 00074 PLEARN_DECLARE_OBJECT(PartsDistanceKernel); 00075 00076 protected: 00077 mutable Vec elementdist; 00078 00079 static void declareOptions(OptionList& ol); 00080 }; 00081 00082 DECLARE_OBJECT_PTR(PartsDistanceKernel); 00083 00084 } // end of namespace PLearn 00085 00086 #endif 00087 00088 00089 /* 00090 Local Variables: 00091 mode:c++ 00092 c-basic-offset:4 00093 c-file-style:"stroustrup" 00094 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00095 indent-tabs-mode:nil 00096 fill-column:79 00097 End: 00098 */ 00099 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :