SHOGUN
v3.2.0
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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) 2008 Gunnar Raetsch 00008 * Copyright (C) 2008-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _GAUSSIANSHIFTKERNEL_H___ 00012 #define _GAUSSIANSHIFTKERNEL_H___ 00013 00014 #include <shogun/lib/common.h> 00015 #include <shogun/kernel/GaussianKernel.h> 00016 #include <shogun/features/DenseFeatures.h> 00017 00018 namespace shogun 00019 { 00038 class CGaussianShiftKernel: public CGaussianKernel 00039 { 00040 public: 00042 CGaussianShiftKernel(); 00043 00051 CGaussianShiftKernel( 00052 int32_t size, float64_t width, int32_t max_shift, 00053 int32_t shift_step); 00054 00064 CGaussianShiftKernel( 00065 CDenseFeatures<float64_t>* l, CDenseFeatures<float64_t>* r, 00066 float64_t width, int32_t max_shift, int32_t shift_step, 00067 int32_t size=10); 00068 00075 virtual bool init(CFeatures* l, CFeatures* r) 00076 { 00077 return CGaussianKernel::init(l,r); 00078 } 00079 00080 virtual ~CGaussianShiftKernel(); 00081 00086 virtual EKernelType get_kernel_type() { return K_GAUSSIANSHIFT; } 00087 00092 virtual const char* get_name() const { return "GaussianShiftKernel"; } 00093 00094 protected: 00103 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00104 00105 private: 00106 void init(); 00107 00108 protected: 00110 int32_t max_shift; 00112 int32_t shift_step; 00113 }; 00114 } 00115 #endif /* _GAUSSIANSHIFTKERNEL_H__ */