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 Gunnar Raetsch 00008 * Written (W) 1999-2008 Soeren Sonnenburg 00009 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00010 */ 00011 00012 #ifndef _LOCALITYIMPROVEDSTRINGKERNEL_H___ 00013 #define _LOCALITYIMPROVEDSTRINGKERNEL_H___ 00014 00015 #include "lib/common.h" 00016 #include "kernel/StringKernel.h" 00017 00018 namespace shogun 00019 { 00030 class CLocalityImprovedStringKernel: public CStringKernel<char> 00031 { 00032 public: 00040 CLocalityImprovedStringKernel(int32_t size, int32_t length, 00041 int32_t inner_degree, int32_t outer_degree); 00042 00051 CLocalityImprovedStringKernel( 00052 CStringFeatures<char>* l, CStringFeatures<char>* r, 00053 int32_t length, int32_t inner_degree, int32_t outer_degree); 00054 00055 virtual ~CLocalityImprovedStringKernel(); 00056 00063 virtual bool init(CFeatures* l, CFeatures* r); 00064 00069 virtual EKernelType get_kernel_type() { return K_LOCALITYIMPROVED; } 00070 00075 virtual const char* get_name() const { return "LocalityImproved"; } 00076 00077 protected: 00086 float64_t compute(int32_t idx_a, int32_t idx_b); 00087 00088 protected: 00090 int32_t length; 00092 int32_t inner_degree; 00094 int32_t outer_degree; 00095 }; 00096 } 00097 #endif /* _LOCALITYIMPROVEDSTRINGKERNEL_H__ */