属性值的Rough Logic约简及优化

The Rough Logic Reduction and Optimization of Attribute Values

对于属性值离散化约简,Andrzej Skowron给出了割集方法,该方法虽然简单可行,但在属性值致密的情况下,产生的割集较大,数据的约简效率较低.提出用Rough Logic方法对Andrzej Skowron割集进行抽取和缩减,并给出相应启发式算法,使属性值约简效率有明显提升.

For the discretization reduction of attribute,Andrzej Skowron gave a cut set method.This method is simple and feasible,but in the case of attribute values being compact,the cut set is large,and the reduction efficiency of the data is lower.Rough logic method is proposed for an extraction and reduction of cut set used by Andrzej Skowron,and the corresponding heuristic attribute value reduction algorithm is given,The efficiency is improved obviously.