AUCKernel.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 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 "lib/common.h"
00016 #include "kernel/SimpleKernel.h"
00017 #include "features/SimpleFeatures.h"
00018 #include "features/Labels.h"
00019 
00020 namespace shogun
00021 {
00022     class CLabels;
00023     template <class T> class CSimpleFeatures;
00024 
00033 class CAUCKernel: public CSimpleKernel<uint16_t>
00034 {
00035     public:
00041         CAUCKernel(int32_t size, CKernel* subkernel);
00042 
00044         virtual ~CAUCKernel();
00045 
00052         CLabels* setup_auc_maximization(CLabels* labels);
00053 
00060         virtual bool init(CFeatures* l, CFeatures* r);
00061 
00066         virtual EKernelType get_kernel_type() { return K_AUC; }
00067 
00072         virtual const char* get_name() const { return "AUC" ; }
00073 
00074     protected:
00083         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00084 
00085     protected:
00087         CKernel* subkernel;
00088 };
00089 }
00090 #endif /* _AUCKERNEL_H__ */

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