Rough sets and fault diagnosis of rotating machinery on rough sets theory (IV) Reducts of decision attributes
Xu Qi, Yong Li · Journal of Nanjing University · 2004
On the basis of typical experiment of the rotating machinery, according to the requests of rough sets theory, all kinds of information that collected by system transformed form the database to repository which accord with the requests of rough sets theory, establish the character decision table of the fault vibration,at the premise of invariable decision attribute, taking advantage of discernibility matrix and discernibility function, simplifying the properties of the decision-making table, and seeking the core of attribute sets of properties and the minimum reducts of attribute value. The decision table of four faults type spectrum is reduced by rough sets theory, the three conditions are taken out form six conditions.