SHOGUN  v3.2.0
AUCKernel.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 1999-2008 Gunnar Raetsch
8  * Written (W) 2009 Soeren Sonnnenburg
9  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
10  */
11 
12 #ifndef _AUCKERNEL_H___
13 #define _AUCKERNEL_H___
14 
15 #include <shogun/lib/common.h>
18 #include <shogun/labels/Labels.h>
19 
20 namespace shogun
21 {
22  class CLabels;
23  template <class T> class CDenseFeatures;
24 
33 class CAUCKernel: public CDotKernel
34 {
35  void init();
36 
37  public:
39  CAUCKernel();
40 
46  CAUCKernel(int32_t size, CKernel* subkernel);
47 
49  virtual ~CAUCKernel();
50 
58 
65  virtual bool init(CFeatures* l, CFeatures* r);
66 
71  virtual EKernelType get_kernel_type() { return K_AUC; }
72 
77  virtual const char* get_name() const { return "AUCKernel" ; }
78 
83  virtual EFeatureClass get_feature_class() { return C_DENSE; }
84 
89  virtual EFeatureType get_feature_type() { return F_WORD; }
90 
91  protected:
100  virtual float64_t compute(int32_t idx_a, int32_t idx_b);
101 
102  protected:
105 };
106 }
107 #endif /* _AUCKERNEL_H__ */
EKernelType
Definition: Kernel.h:51
The class Labels models labels, i.e. class assignments of objects.
Definition: Labels.h:35
virtual EFeatureClass get_feature_class()
Definition: AUCKernel.h:83
virtual const char * get_name() const
Definition: AUCKernel.h:77
CLabels * setup_auc_maximization(CLabels *labels)
Definition: AUCKernel.cpp:46
EFeatureClass
shogun feature class
Definition: FeatureTypes.h:35
The AUC kernel can be used to maximize the area under the receiver operator characteristic curve (AUC...
Definition: AUCKernel.h:33
Template class DotKernel is the base class for kernels working on DotFeatures.
Definition: DotKernel.h:29
virtual ~CAUCKernel()
Definition: AUCKernel.cpp:40
double float64_t
Definition: common.h:48
virtual EFeatureType get_feature_type()
Definition: AUCKernel.h:89
EFeatureType
shogun feature type
Definition: FeatureTypes.h:16
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:16
The class Features is the base class of all feature objects.
Definition: Features.h:62
virtual float64_t compute(int32_t idx_a, int32_t idx_b)
Definition: AUCKernel.cpp:131
The Kernel base class.
Definition: Kernel.h:150
virtual EKernelType get_kernel_type()
Definition: AUCKernel.h:71
CKernel * subkernel
Definition: AUCKernel.h:104

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