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 _SPARSEKERNEL_H___ 00012 #define _SPARSEKERNEL_H___ 00013 00014 #include "kernel/Kernel.h" 00015 #include "features/SparseFeatures.h" 00016 00020 template <class ST> class CSparseKernel : public CKernel 00021 { 00022 public: 00027 CSparseKernel(int32_t cachesize) : CKernel(cachesize) {} 00028 00034 CSparseKernel(CFeatures* l, CFeatures* r) : CKernel(10) 00035 { 00036 init(l, r); 00037 } 00038 00045 virtual bool init(CFeatures* l, CFeatures* r) 00046 { 00047 CKernel::init(l,r); 00048 00049 ASSERT(l->get_feature_class()==C_SPARSE); 00050 ASSERT(r->get_feature_class()==C_SPARSE); 00051 ASSERT(l->get_feature_type()==this->get_feature_type()); 00052 ASSERT(r->get_feature_type()==this->get_feature_type()); 00053 00054 if (((CSparseFeatures<ST>*) lhs)->get_num_features() != ((CSparseFeatures<ST>*) rhs)->get_num_features()) 00055 { 00056 SG_ERROR( "train or test features #dimension mismatch (l:%d vs. r:%d)\n", 00057 ((CSparseFeatures<ST>*) lhs)->get_num_features(),((CSparseFeatures<ST>*)rhs)->get_num_features()); 00058 } 00059 return true; 00060 } 00061 00066 inline virtual EFeatureClass get_feature_class() { return C_SPARSE; } 00067 00072 inline virtual EFeatureType get_feature_type(); 00073 }; 00074 00075 template<> inline EFeatureType CSparseKernel<float64_t>::get_feature_type() { return F_DREAL; } 00076 00077 template<> inline EFeatureType CSparseKernel<uint64_t>::get_feature_type() { return F_ULONG; } 00078 00079 template<> inline EFeatureType CSparseKernel<int32_t>::get_feature_type() { return F_INT; } 00080 00081 template<> inline EFeatureType CSparseKernel<uint16_t>::get_feature_type() { return F_WORD; } 00082 00083 template<> inline EFeatureType CSparseKernel<int16_t>::get_feature_type() { return F_SHORT; } 00084 00085 template<> inline EFeatureType CSparseKernel<uint8_t>::get_feature_type() { return F_BYTE; } 00086 00087 template<> inline EFeatureType CSparseKernel<char>::get_feature_type() { return F_CHAR; } 00088 00089 #endif /* _SPARSEKERNEL_H__ */