PolyKernel.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 _POLYKERNEL_H___
00012 #define _POLYKERNEL_H___
00013 
00014 #include "lib/common.h"
00015 #include "kernel/SimpleKernel.h"
00016 #include "features/RealFeatures.h"
00017 
00028 class CPolyKernel: public CSimpleKernel<float64_t>
00029 {
00030     public:
00039         CPolyKernel(CRealFeatures* l, CRealFeatures* r,
00040             int32_t d, bool inhom, int32_t size=10);
00041 
00048         CPolyKernel(int32_t size, int32_t degree, bool inhomogene=true);
00049 
00050         virtual ~CPolyKernel();
00051 
00058         virtual bool init(CFeatures* l, CFeatures* r);
00059 
00061         virtual void cleanup();
00062 
00068         virtual bool load_init(FILE* src);
00069 
00075         virtual bool save_init(FILE* dest);
00076 
00081         virtual EKernelType get_kernel_type() { return K_POLY; }
00082 
00087         virtual const char* get_name() { return "Poly"; };
00088 
00089     protected:
00098         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00099 
00100     protected:
00102         int32_t degree;
00104         bool inhomogene;
00105 };
00106 
00107 #endif /* _POLYKERNEL_H__ */

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