Invariant characteristics of information systems under some homomorphisms. I
Deyu Li, Qi Chen, Ma Yichen · 2002
An information system is one of the very important mathematical models in the field of artificial intelligence. The notion of information system's homomorphism as a kind of tools to study the relation between two information systems was introduced by Grzymala-Busse (1986). In this paper, some invariant characteristics of an information system under a homomorphism are discussed.