An Algorithm for Obtaining Decision Rules Based on Greedy Strategy in Consistent Decision Information System

The purpose of obtaining decision rules from decision information system is to gain the useful rules and inerratic knowledge through analyzing sample data set or data base. In this paper, an algorithm for obtaining decision rules based on greedy strategy is discussed under rough set view in consistent decision information system. The experimental results show that the algorithm that we proposed improves the running speed effectively, and the obtained knowledge is more concise.