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) 1999-2009 Soeren Sonnenburg 00008 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _MATCHWORDSTRINGKERNEL_H___ 00012 #define _MATCHWORDSTRINGKERNEL_H___ 00013 00014 #include <shogun/lib/common.h> 00015 #include <shogun/kernel/string/StringKernel.h> 00016 #include <shogun/features/StringFeatures.h> 00017 00018 namespace shogun 00019 { 00037 class CMatchWordStringKernel: public CStringKernel<uint16_t> 00038 { 00039 public: 00041 CMatchWordStringKernel(); 00042 00048 CMatchWordStringKernel(int32_t size, int32_t d); 00049 00056 CMatchWordStringKernel(CStringFeatures<uint16_t>* l, CStringFeatures<uint16_t>* r, int32_t degree); 00057 00058 virtual ~CMatchWordStringKernel(); 00059 00066 virtual bool init(CFeatures* l, CFeatures* r); 00067 00072 virtual EKernelType get_kernel_type() { return K_MATCHWORD; } 00073 00078 virtual const char* get_name() const { return "MatchWordStringKernel"; } 00079 00080 protected: 00089 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00090 00091 private: 00092 void init(); 00093 00094 protected: 00096 int32_t degree; 00097 }; 00098 } 00099 #endif /* _MATCHWORDSTRINGKERNEL_H__ */