Title of article :
Invariant characters of information systems under some homomorphisms
Author/Authors :
Li Deyu، نويسنده , , Ma Yichen، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Keywords :
Super¯uousattribute , information systems , Information system homomorphism , Rough set theory , Indiscernibility relation
Journal title :
Information Sciences
Journal title :
Information Sciences