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) 2007-2009 Christian Gehl 00008 * Copyright (C) 2007-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #include "lib/config.h" 00012 00013 00014 #ifndef _DISTANCEKERNEL_H___ 00015 #define _DISTANCEKERNEL_H___ 00016 00017 #include "lib/common.h" 00018 #include "kernel/Kernel.h" 00019 #include "distance/Distance.h" 00020 00021 namespace shogun 00022 { 00023 class CDistance; 00024 00033 class CDistanceKernel: public CKernel 00034 { 00035 public: 00042 CDistanceKernel(int32_t cache, float64_t width, CDistance* dist); 00043 00051 CDistanceKernel( 00052 CFeatures *l, CFeatures *r, float64_t width, CDistance* dist); 00053 00054 virtual ~CDistanceKernel(); 00055 00062 virtual bool init(CFeatures* l, CFeatures* r); 00063 00068 inline virtual EKernelType get_kernel_type() { return K_DISTANCE; } 00073 inline virtual EFeatureType get_feature_type() { return distance->get_feature_type(); } 00074 00079 inline virtual EFeatureClass get_feature_class() { return distance->get_feature_class(); } 00080 00085 inline virtual const char* get_name() const { return distance->get_name(); } 00086 00087 protected: 00096 float64_t compute(int32_t idx_a, int32_t idx_b); 00097 00098 private: 00100 CDistance* distance; 00102 float64_t width; 00103 }; 00104 } 00105 #endif /* _DISTANCEKERNEL_H__ */