Important degree of attribute and attribute reduction in incomplete information system
Keyun Qin · Computer Engineering and Applications Journal · 2010
Based on definition of similarity relations,significance of the attribute relative to each object is discussed in incomplete information systems.Important degree of the attribute is obtained by using the OWA operator,which can aggregate relative significance of each attribute.According to important degree of the attribute,a new method of attributes reduction is presented.Finally,the experimental results show that the way can not only find the reduction of an incomplete information system,but also reduce the search space of attribute reduction.