On Dependence in Wille’s Contexts
Jiří Novotný, Miroslav Novotný · Fundamenta Informaticae · 1993
A concept in Wille’s context can be generated starting with a set of features. The problem of finding a minimal subset of the given set of features that generates the same concept as the given one is solved using a suitable dependence space and constructing reducts of one of its subsets. This result can be applied to information systems where it enables to cancel superfluous values of attributes.