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 Gunnar Raetsch 00008 * Written (W) 2009 Soeren Sonnnenburg 00009 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00010 */ 00011 00012 #ifndef _AUCKERNEL_H___ 00013 #define _AUCKERNEL_H___ 00014 00015 #include <shogun/lib/common.h> 00016 #include <shogun/kernel/DotKernel.h> 00017 #include <shogun/features/DenseFeatures.h> 00018 #include <shogun/labels/Labels.h> 00019 00020 namespace shogun 00021 { 00022 class CLabels; 00023 template <class T> class CDenseFeatures; 00024 00033 class CAUCKernel: public CDotKernel 00034 { 00035 void init(); 00036 00037 public: 00039 CAUCKernel(); 00040 00046 CAUCKernel(int32_t size, CKernel* subkernel); 00047 00049 virtual ~CAUCKernel(); 00050 00057 CLabels* setup_auc_maximization(CLabels* labels); 00058 00065 virtual bool init(CFeatures* l, CFeatures* r); 00066 00071 virtual EKernelType get_kernel_type() { return K_AUC; } 00072 00077 virtual const char* get_name() const { return "AUCKernel" ; } 00078 00083 virtual EFeatureClass get_feature_class() { return C_DENSE; } 00084 00089 virtual EFeatureType get_feature_type() { return F_WORD; } 00090 00091 protected: 00100 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00101 00102 protected: 00104 CKernel* subkernel; 00105 }; 00106 } 00107 #endif /* _AUCKERNEL_H__ */