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) 2009 Soeren Sonnenburg 00008 * Copyright (C) 2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _TPPKKERNEL_H___ 00012 #define _TPPKKERNEL_H___ 00013 00014 #include <shogun/lib/common.h> 00015 #include <shogun/kernel/DotKernel.h> 00016 #include <shogun/features/SimpleFeatures.h> 00017 00018 namespace shogun 00019 { 00037 class CTensorProductPairKernel: public CDotKernel 00038 { 00039 public: 00041 CTensorProductPairKernel(void); 00042 00048 CTensorProductPairKernel(int32_t size, CKernel* subkernel); 00049 00056 CTensorProductPairKernel(CSimpleFeatures<int32_t> *l, CSimpleFeatures<int32_t> *r, CKernel* subkernel); 00057 00058 virtual ~CTensorProductPairKernel(); 00059 00066 virtual bool init(CFeatures* l, CFeatures* r); 00067 00072 virtual EKernelType get_kernel_type() { return K_TPPK; } 00073 00074 /* register the parameters 00075 */ 00076 virtual void register_params(); 00077 00082 virtual const char* get_name() const { return "TensorProductPairKernel"; } 00083 00088 inline virtual EFeatureClass get_feature_class() { return C_SIMPLE; } 00089 00094 virtual EFeatureType get_feature_type() { return F_INT; } 00095 00096 protected: 00105 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00106 00107 protected: 00109 CKernel* subkernel; 00110 }; 00111 } 00112 #endif /* _TPPKKERNEL_H__ */