LocalityImprovedStringKernel.h

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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 
00028 class CLocalityImprovedStringKernel: public CStringKernel<char>
00029 {
00030     public:
00038         CLocalityImprovedStringKernel(int32_t size, int32_t length,
00039             int32_t inner_degree, int32_t outer_degree);
00040 
00049         CLocalityImprovedStringKernel(
00050             CStringFeatures<char>* l, CStringFeatures<char>* r,
00051             int32_t length, int32_t inner_degree, int32_t outer_degree);
00052 
00053         virtual ~CLocalityImprovedStringKernel();
00054 
00061         virtual bool init(CFeatures* l, CFeatures* r);
00062 
00068         bool load_init(FILE* src);
00069 
00075         bool save_init(FILE* dest);
00076 
00081         virtual EKernelType get_kernel_type() { return K_LOCALITYIMPROVED; }
00082 
00087         virtual const char* get_name() const { return "LocalityImproved"; }
00088 
00089     protected:
00098         float64_t compute(int32_t idx_a, int32_t idx_b);
00099 
00100     protected:
00102         int32_t length;
00104         int32_t inner_degree;
00106         int32_t outer_degree;
00107 };
00108 
00109 #endif /* _LOCALITYIMPROVEDSTRINGKERNEL_H__ */
00110 

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