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) 2011 Andrew Tereskin 00008 * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society 00009 */ 00010 00011 #include <shogun/lib/config.h> 00012 00013 #ifndef TSTUDENTKERNEL_H_ 00014 #define TSTUDENTKERNEL_H_ 00015 00016 #include <shogun/lib/common.h> 00017 #include <shogun/kernel/Kernel.h> 00018 #include <shogun/distance/Distance.h> 00019 00020 namespace shogun 00021 { 00022 00023 class CDistance; 00024 00035 class CTStudentKernel: public CKernel 00036 { 00037 public: 00039 CTStudentKernel(); 00040 00046 CTStudentKernel(int32_t cache, float64_t d, CDistance* dist); 00047 00054 CTStudentKernel(CFeatures *l, CFeatures *r, float64_t d, CDistance* dist); 00055 00056 virtual ~CTStudentKernel(); 00057 00063 virtual bool init(CFeatures* l, CFeatures* r); 00064 00068 virtual EKernelType get_kernel_type() { return K_TSTUDENT; } 00069 00073 virtual EFeatureType get_feature_type() { return distance->get_feature_type(); } 00074 00078 virtual EFeatureClass get_feature_class() { return distance->get_feature_class(); } 00079 00083 virtual const char* get_name() const { return "TStudentKernel"; } 00084 00088 inline float64_t get_degree() { return this->degree; } 00089 00093 inline void set_degree(float64_t value) { this->degree = value; } 00094 00095 private: 00096 void init(); 00097 00098 protected: 00099 00101 CDistance* distance; 00102 00104 float64_t degree; 00105 00113 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00114 }; 00115 } 00116 00117 #endif /* TSTUDENTKERNEL_H_ */