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 _POLYKERNEL_H___ 00012 #define _POLYKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/SimpleKernel.h" 00016 #include "features/SimpleFeatures.h" 00017 00018 namespace shogun 00019 { 00034 class CPolyKernel: public CSimpleKernel<float64_t> 00035 { 00036 public: 00045 CPolyKernel(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r, 00046 int32_t d, bool inhom, int32_t size=10); 00047 00054 CPolyKernel(int32_t size, int32_t degree, bool inhomogene=true); 00055 00056 virtual ~CPolyKernel(); 00057 00064 virtual bool init(CFeatures* l, CFeatures* r); 00065 00067 virtual void cleanup(); 00068 00073 virtual EKernelType get_kernel_type() { return K_POLY; } 00074 00079 virtual const char* get_name() const { return "Poly"; }; 00080 00081 protected: 00090 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00091 00092 protected: 00094 int32_t degree; 00096 bool inhomogene; 00097 }; 00098 } 00099 #endif /* _POLYKERNEL_H__ */