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ID3ClassifierTree.h
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3  * Written (w) 2014 Parijat Mazumdar
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30 
31 
32 #ifndef _ID3CLASSIFIERTREE_H__
33 #define _ID3CLASSIFIERTREE_H__
34 
39 
40 namespace shogun
41 {
42 
69 class CID3ClassifierTree : public CTreeMachine<id3TreeNodeData>
70 {
71 public:
74 
76  virtual ~CID3ClassifierTree();
77 
81  virtual const char* get_name() const { return "ID3ClassifierTree"; }
82 
86  virtual CMulticlassLabels* apply_multiclass(CFeatures* data=NULL);
87 
88 protected:
89 
93  virtual bool train_machine(CFeatures* data=NULL);
94 
95 private:
96 
102  node_t* id3train(CFeatures* data, CMulticlassLabels* class_labels, SGVector<int32_t> values, int level = 0);
103 
111  float64_t informational_gain_attribute(int32_t attr_no, CFeatures* data, CMulticlassLabels* class_labels);
112 
118  float64_t entropy(CMulticlassLabels* labels);
119 
120 };
121 } /* namespace shogun */
122 
123 #endif /* _ID3CLASSIFIERTREE_H__ */

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