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__ */