With the analysis for the common problems in structure
process of decision tree, this article focuses on the problems
of decision tree algorithm existed in the links of property
vacancy and property selection to put forward the concept
of Weighted Simplification Entropy, to utilize the size of
Weighted Simplification Entropy to determine splitting
property, to put forward optimization strategy based on ID3
algorithm, then to structure decision tree classifier. The
example verifies that the method put forward in this article
precedes ID3 algorithm, and could effectively promotes the
efficiency, predicted precision and rule conciseness of
algorithm