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 _FIXEDDEGREESTRINGKERNEL_H___ 00012 #define _FIXEDDEGREESTRINGKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/StringKernel.h" 00016 00017 namespace shogun 00018 { 00031 class CFixedDegreeStringKernel: public CStringKernel<char> 00032 { 00033 public: 00039 CFixedDegreeStringKernel(int32_t size, int32_t degree); 00040 00047 CFixedDegreeStringKernel( 00048 CStringFeatures<char>* l, CStringFeatures<char>* r, 00049 int32_t degree); 00050 00051 virtual ~CFixedDegreeStringKernel(); 00052 00059 virtual bool init(CFeatures* l, CFeatures* r); 00060 00062 virtual void cleanup(); 00063 00068 virtual EKernelType get_kernel_type() 00069 { 00070 return K_FIXEDDEGREE; 00071 } 00072 00077 virtual const char* get_name() const { return "FixedDegree"; } 00078 00079 protected: 00088 float64_t compute(int32_t idx_a, int32_t idx_b); 00090 int32_t degree; 00091 }; 00092 } 00093 #endif /* _FIXEDDEGREESTRINGKERNEL_H___ */