The computing method for core attributes based on decision tree

In order to solve the problem of computing the core of consistent information system, based on the full analysis of rough set theory and decision tree method, we introduce the concept of the core samples and put forward a method of computing core attributes. It is proved that this method is effective combined with specific instance. Results show that the core computing method based on the decision tree has good operability and interpretability and this method can effectively calculate the core attributes of the information system.