SHOGUN  5.0.0
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules
AUCKernel.h
Go to the documentation of this file.
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/config.h>
16 
17 #include <shogun/lib/common.h>
20 #include <shogun/labels/Labels.h>
21 
22 namespace shogun
23 {
24  class CLabels;
25  template <class T> class CDenseFeatures;
26 
35 class CAUCKernel: public CDotKernel
36 {
37  void init();
38 
39  public:
41  CAUCKernel();
42 
48  CAUCKernel(int32_t size, CKernel* subkernel);
49 
51  virtual ~CAUCKernel();
52 
60 
67  virtual bool init(CFeatures* l, CFeatures* r);
68 
73  virtual EKernelType get_kernel_type() { return K_AUC; }
74 
79  virtual const char* get_name() const { return "AUCKernel" ; }
80 
85  virtual EFeatureClass get_feature_class() { return C_DENSE; }
86 
91  virtual EFeatureType get_feature_type() { return F_WORD; }
92 
93  protected:
102  virtual float64_t compute(int32_t idx_a, int32_t idx_b);
103 
104  protected:
107 };
108 }
109 #endif /* _AUCKERNEL_H__ */
EKernelType
Definition: Kernel.h:57
The class Labels models labels, i.e. class assignments of objects.
Definition: Labels.h:43
virtual EFeatureClass get_feature_class()
Definition: AUCKernel.h:85
virtual const char * get_name() const
Definition: AUCKernel.h:79
CLabels * setup_auc_maximization(CLabels *labels)
Definition: AUCKernel.cpp:46
EFeatureClass
shogun feature class
Definition: FeatureTypes.h:38
The AUC kernel can be used to maximize the area under the receiver operator characteristic curve (AUC...
Definition: AUCKernel.h:35
Template class DotKernel is the base class for kernels working on DotFeatures.
Definition: DotKernel.h:31
virtual ~CAUCKernel()
Definition: AUCKernel.cpp:40
double float64_t
Definition: common.h:50
virtual EFeatureType get_feature_type()
Definition: AUCKernel.h:91
EFeatureType
shogun feature type
Definition: FeatureTypes.h:19
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:18
The class Features is the base class of all feature objects.
Definition: Features.h:68
virtual float64_t compute(int32_t idx_a, int32_t idx_b)
Definition: AUCKernel.cpp:131
The Kernel base class.
Definition: Kernel.h:159
virtual EKernelType get_kernel_type()
Definition: AUCKernel.h:73
CKernel * subkernel
Definition: AUCKernel.h:106

SHOGUN Machine Learning Toolbox - Documentation