The research of this thesis is mainly about the dynamic reduct based on rough set theory as well as how to establish and develop the decision rules after completing the reduct. This paper also covers the basic principle of rough set, the analysis of the sample strategy on different decision tables and how to make use of the discernibility matrix and discernibility function to do reduction with the decision table. Thus a relatively perfect theory and technique scheme of dynamic reduct of the decision table i...
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