On Multi-soft Sets Construction in Information Systems

摘要

The "standard" soft set deals with a binary-valued information system. For a multi-valued information system S = (U,A,V,f) , whereV = ∪_(a∈A) V_a , V_a is the domain (value set) of attribute a which has multivalue (|V_a| ≥ 3), a decomposition can be made from S into |A| number of binary-valued information systems S = (U, A,V_({0,1}), f). In this paper, we presentthe notion of multi-soft set representing S based on such decomposition. The AND and OR operations in multi-soft sets also presented.