GaussianMatchStringKernel.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) 1999-2009 Soeren Sonnenburg
00008  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
00009  */
00010 
00011 #ifndef _GAUSSIANMATCHSTRINGKERNEL_H___
00012 #define _GAUSSIANMATCHSTRINGKERNEL_H___
00013 
00014 #include <shogun/lib/common.h>
00015 #include <shogun/kernel/StringKernel.h>
00016 
00017 namespace shogun
00018 {
00034 class CGaussianMatchStringKernel: public CStringKernel<char>
00035 {
00036     public:
00038         CGaussianMatchStringKernel(void);
00039 
00045         CGaussianMatchStringKernel(int32_t size, float64_t width);
00046 
00053         CGaussianMatchStringKernel(
00054             CStringFeatures<char>* l, CStringFeatures<char>* r,
00055             float64_t width);
00056 
00057         virtual ~CGaussianMatchStringKernel();
00058 
00065         virtual bool init(CFeatures* l, CFeatures* r);
00066 
00068         virtual void cleanup();
00069 
00074         virtual EKernelType get_kernel_type()
00075         {
00076             return K_GAUSSIANMATCH;
00077         }
00078 
00083         virtual const char* get_name() const { return "GaussianMatchStringKernel"; }
00086         virtual void register_params();
00087 
00088     protected:
00097         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00098 
00099     protected:
00101         float64_t width;
00102 };
00103 }
00104 #endif /* _GAUSSIANMATCHSTRINGKERNEL_H___ */
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