GaussianKernel.h

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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) 1999-2008 Soeren Sonnenburg
00008  * Copyright (C) 1999-2008 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/RealFeatures.h"
00017 
00019 class CGaussianKernel: public CSimpleKernel<DREAL>
00020 {
00021     public:
00027         CGaussianKernel(INT size, DREAL width);
00028 
00036         CGaussianKernel(CRealFeatures* l, CRealFeatures* r,
00037             DREAL width, INT size=10);
00038 
00039         virtual ~CGaussianKernel();
00040 
00047         virtual bool init(CFeatures* l, CFeatures* r);
00048 
00054         virtual bool load_init(FILE* src);
00055 
00061         virtual bool save_init(FILE* dest);
00062 
00067         virtual EKernelType get_kernel_type() { return K_GAUSSIAN; }
00068 
00073         virtual const CHAR* get_name() { return "Gaussian"; }
00074 
00075     protected:
00084         virtual DREAL compute(INT idx_a, INT idx_b);
00085 
00086     protected:
00088         DREAL width;
00089 };
00090 
00091 #endif /* _GAUSSIANKERNEL_H__ */

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