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) 2008-2009 Soeren Sonnenburg 00008 * Copyright (C) 2008-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _KERNELNORMALIZER_H___ 00012 #define _KERNELNORMALIZER_H___ 00013 00014 #include "kernel/Kernel.h" 00015 00016 namespace shogun 00017 { 00018 00020 enum ENormalizerType 00021 { 00022 N_REGULAR = 0, 00023 N_MULTITASK = 1 00024 }; 00025 00026 class CKernel; 00050 class CKernelNormalizer : public CSGObject 00051 { 00052 public: 00053 00056 CKernelNormalizer() 00057 { 00058 m_type = N_REGULAR; 00059 } 00060 00062 virtual ~CKernelNormalizer() { } 00063 00066 virtual bool init(CKernel* k)=0; 00067 00073 virtual float64_t normalize( 00074 float64_t value, int32_t idx_lhs, int32_t idx_rhs)=0; 00075 00080 virtual float64_t normalize_lhs(float64_t value, int32_t idx_lhs)=0; 00081 00086 virtual float64_t normalize_rhs(float64_t value, int32_t idx_rhs)=0; 00087 00090 ENormalizerType get_normalizer_type() 00091 { 00092 return m_type; 00093 } 00094 00098 void set_normalizer_type(ENormalizerType type) 00099 { 00100 m_type = type; 00101 } 00102 00103 protected: 00105 ENormalizerType m_type; 00106 }; 00107 } 00108 #endif