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 _SPARSEPOLYKERNEL_H___ 00012 #define _SPARSEPOLYKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/SparseKernel.h" 00016 #include "features/SparseFeatures.h" 00017 00028 class CSparsePolyKernel: public CSparseKernel<float64_t> 00029 { 00030 public: 00039 CSparsePolyKernel( 00040 CSparseFeatures<float64_t>* l, CSparseFeatures<float64_t>* r, 00041 int32_t size, int32_t d, bool inhom); 00042 00049 CSparsePolyKernel(int32_t size, int32_t degree, bool inhomogene=true); 00050 00051 virtual ~CSparsePolyKernel(); 00052 00059 virtual bool init(CFeatures* l, CFeatures* r); 00060 00062 virtual void cleanup(); 00063 00069 virtual bool load_init(FILE* src); 00070 00076 virtual bool save_init(FILE* dest); 00077 00082 inline virtual EFeatureType get_feature_type() { return F_DREAL; } 00083 00088 virtual EKernelType get_kernel_type() { return K_POLY; } 00089 00094 virtual const char* get_name() { return "SparsePoly"; } 00095 00096 protected: 00105 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00106 00107 protected: 00109 int32_t degree; 00111 bool inhomogene; 00112 }; 00113 00114 #endif /* _SPARSEPOLYKERNEL_H__ */