2011 | OriginalPaper | Buchkapitel
Enumerating Minimal Hypotheses and Dualizing Monotone Boolean Functions on Lattices
verfasst von : Mikhail A. Babin, Sergei O. Kuznetsov
Erschienen in: Formal Concept Analysis
Verlag: Springer Berlin Heidelberg
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Any monotone Boolean function on a lattice can be described by the set of its minimal 1 values. If a lattice is given as a concept lattice, this set can be represented by the set of minimal hypotheses of a classification context. Enumeration of minimal hypotheses in output polynomial time is shown to be impossible unless P = NP, which shows that dualization of monotone functions on lattices with quasipolynomial delay is hardly possible.