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 _FIXEDDEGREESTRINGKERNEL_H___ 00012 #define _FIXEDDEGREESTRINGKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/StringKernel.h" 00016 00029 class CFixedDegreeStringKernel: public CStringKernel<CHAR> 00030 { 00031 public: 00037 CFixedDegreeStringKernel(INT size, INT degree); 00038 00045 CFixedDegreeStringKernel( 00046 CStringFeatures<CHAR>* l, CStringFeatures<CHAR>* r, 00047 INT degree); 00048 00049 virtual ~CFixedDegreeStringKernel(); 00050 00057 virtual bool init(CFeatures* l, CFeatures* r); 00058 00060 virtual void cleanup(); 00061 00067 bool load_init(FILE* src); 00068 00074 bool save_init(FILE* dest); 00075 00080 virtual EKernelType get_kernel_type() 00081 { 00082 return K_FIXEDDEGREE; 00083 } 00084 00089 virtual const CHAR* get_name() 00090 { 00091 return "FixedDegree"; 00092 } 00093 00094 protected: 00103 DREAL compute(INT idx_a, INT idx_b); 00105 INT degree; 00107 DREAL *sqrtdiag_lhs; 00109 DREAL *sqrtdiag_rhs; 00111 bool initialized; 00112 }; 00113 00114 #endif /* _FIXEDDEGREESTRINGKERNEL_H___ */