Application of Decision Tree Algorithm Based on Data Mining in English Teaching Evaluation

Table 1

The structure and representation of the decision tree.

Natural tree	The meaning of correspondence in decision tree	Representation meaning in classification problems
Tree root	Root node	Training instance entire data set space
Tree right	Internal (nonleaf) node and decision node	Attribute (set) of the object to be classified
Branch	Branch	A possible value of attribute
Leaf	Leaf node, state node	Data segmentation (classification results)