Effective method of improving C5.0 algorithm
Gong Gu · Jisuanji gongcheng yu sheji · 2009
How to discretize continuous attributes is an important problem that simplifies the representation of data set when building a decision tree based on C5.0 algorithm.Adopting a more effective and sound method of discretization can heighten the predictive accuracy of decision tree.To do this,improved method of Chi2 algorithm is presented after studying the C5.0 algorithm and Chi2 algorithm and analyzing their drawbacks of discretization,which discretizes the real value attributes exactly and reasonably while growing an accurate decision-tree.The experiment results show the validity of the proposed method.