Chi2Kernel.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 Soeren Sonnenburg
00008  * Copyright (C) 1999-2008 Fraunhofer Institute FIRST and Max-Planck-Society
00009  */
00010 
00011 #ifndef _CHI2KERNEL_H___
00012 #define _CHI2KERNEL_H___
00013 
00014 #include "lib/common.h"
00015 #include "kernel/SimpleKernel.h"
00016 #include "features/Features.h"
00017 #include "features/RealFeatures.h"
00018 
00029 class CChi2Kernel: public CSimpleKernel<DREAL>
00030 {
00031     public:
00037         CChi2Kernel(INT size, DREAL width);
00038 
00046         CChi2Kernel(CRealFeatures* l, CRealFeatures* r,
00047             DREAL width, INT size);
00048 
00049         virtual ~CChi2Kernel();
00050 
00057         virtual bool init(CFeatures* l, CFeatures* r);
00058 
00064         virtual bool load_init(FILE* src);
00065 
00071         virtual bool save_init(FILE* dest);
00072 
00077         virtual EKernelType get_kernel_type() { return K_CHI2; }
00078 
00083         virtual const CHAR* get_name() { return "Chi2"; };
00084 
00085     protected:
00094         virtual DREAL compute(INT idx_a, INT idx_b);
00095 
00096     protected:
00098         DREAL width;
00099 };
00100 
00101 #endif /* _CHI2KERNEL_H__ */
00102 
00103 

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