Both the certainty and uncertainty basis decision rules were extracted directly by using rough sets theory,and then formed libraries of decision rules of the information system.

A Method of Generation Decision Rules Based Rough Set;

Rough set-based decision rules extraction;

Generating decision rules based on rough set and information gain;

Approach to decision rule acquisition and attribute reduction on fuzzy information table;

Discernable matrix and its application in consistent decision rules;

Dynamic mining decision rules based on partial granulation;

A Rough Set Method for Extracting Players Decision-making Rule Based on Bounded Rationality;

By exercising this model,we have put up property reduction to the decision table and eradicated the unnecessary ones,exposed the re-dundancy in conditional properties,finally got the property reduction result and decision-making rule.

Three natural institution elements of economic law system,decision-making rules,recourses allocation methood,and value favoritism are analyzed.

The concept of decision-making rule lattice and decision-making rule lattice reduction are brought forward; an intrusion detection classifying rule assembly is acquired.