Rough set theory is a new mathematic tool for processing uncertainty information after probabilitytheory, fuzzy set theory and D-S theory of evidence. It not only gives a studying method forinformation science and cognitive science, but also offers a practical technique for intelligentinformation processing. The studying on the math theory and the actual applications of rough setis progressing worldwide.
Rough set is a tool for processing indefinite, imprecise data, which deals with knowle...