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 _POLYMATCHWORDSTRINGKERNEL_H___ 00012 #define _POLYMATCHWORDSTRINGKERNEL_H___ 00013 00014 #include <shogun/lib/common.h> 00015 #include <shogun/kernel/StringKernel.h> 00016 #include <shogun/features/StringFeatures.h> 00017 00018 namespace shogun 00019 { 00038 class CPolyMatchWordStringKernel: public CStringKernel<uint16_t> 00039 { 00040 public: 00042 CPolyMatchWordStringKernel(); 00043 00050 CPolyMatchWordStringKernel(int32_t size, int32_t degree, bool inhomogene); 00051 00059 CPolyMatchWordStringKernel(CStringFeatures<uint16_t>* l, CStringFeatures<uint16_t>* r, int32_t degree, bool inhomogene); 00060 00061 virtual ~CPolyMatchWordStringKernel(); 00062 00069 virtual bool init(CFeatures* l, CFeatures* r); 00070 00072 virtual void cleanup(); 00073 00078 virtual EKernelType get_kernel_type() { return K_POLYMATCH; } 00079 00084 virtual const char* get_name() const { return "PolyMatchWordStringKernel"; } 00085 00086 protected: 00095 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00096 00097 private: 00098 void init(); 00099 00100 protected: 00102 int32_t degree; 00104 bool inhomogene; 00105 }; 00106 } 00107 #endif /* _POLYMATCHWORDSTRINGKERNEL_H__ */