GaussianKernel.h

Go to the documentation of this file.
00001 /*
00002  * This program is free software; you can redistribute it and/or modify
00003  * it under the terms of the GNU General Public License as published by
00004  * the Free Software Foundation; either version 3 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 1999-2009 Soeren Sonnenburg
00008  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
00009  */
00010 
00011 #ifndef _GAUSSIANKERNEL_H___
00012 #define _GAUSSIANKERNEL_H___
00013 
00014 #include "lib/common.h"
00015 #include "kernel/SimpleKernel.h"
00016 #include "features/SimpleFeatures.h"
00017 
00018 namespace shogun
00019 {
00031 class CGaussianKernel: public CSimpleKernel<float64_t>
00032 {
00033     public:
00037         CGaussianKernel();
00038 
00044         CGaussianKernel(int32_t size, float64_t width);
00045 
00053         CGaussianKernel(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r,
00054             float64_t width, int32_t size=10);
00055 
00056         virtual ~CGaussianKernel();
00057 
00064         virtual bool init(CFeatures* l, CFeatures* r);
00065 
00070         virtual EKernelType get_kernel_type() { return K_GAUSSIAN; }
00071 
00076         inline virtual const char* get_name() const { return "GaussianKernel"; }
00077 
00078     protected:
00087         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00088 
00089 #ifdef HAVE_BOOST_SERIALIZATION
00090     private:
00091 
00092         friend class ::boost::serialization::access;
00093         template<class Archive>
00094             void serialize(Archive & ar, const unsigned int archive_version)
00095             {
00096 
00097                 SG_DEBUG("archiving GaussianKernel\n");
00098 
00099                 ar & ::boost::serialization::base_object<CSimpleKernel<float64_t> >(*this);
00100 
00101                 ar & width;
00102 
00103                 SG_DEBUG("done with GaussianKernel\n");
00104 
00105             }
00106 #endif //HAVE_BOOST_SERIALIZATION
00107 
00108 
00109     protected:
00111         float64_t width;
00112 };
00113 }
00114 #endif /* _GAUSSIANKERNEL_H__ */

SHOGUN Machine Learning Toolbox - Documentation