Comparing the efficiency of normal form systems to represent Boolean functions

Miguel Couceiro 1 Pierre Mercuriali 2 Romain Péchoux 2
1 ORPAILLEUR - Knowledge representation, reasonning
Inria Nancy - Grand Est, LORIA - NLPKD - Department of Natural Language Processing & Knowledge Discovery
2 CARTE - Theoretical adverse computations, and safety
Inria Nancy - Grand Est, LORIA - FM - Department of Formal Methods
Abstract : In this paper we compare various normal form representations of Boolean functions. We extend the study of [4], pertaining to the comparison of the asymptotic efficiency of representations that are produced by normal form systems (NFSs) that are factorizations of the clone Ω of all Boolean functions. We identify some properties, such as associativity, linearity, quasi-linearity and symmetry , that allow the efficiency of the corresponding NFSs to be compared in terms of the non-trivial connectives used. We illustrate these results by comparing well-known NFSs such as the DNF, CNF, Zhegalkin (Reed-Muller) polynomial (PNF) and Median (MNF) representations, thereby confirming the results of [4]. In particular, we show that the MNF is of equivalent complexity to, e.g., the Sheffer Normal Form (SNF), UNF and WNF (associated with 1 and 0-separating functions respectively) and thus that the latter are polynomially as efficient as any other NFS, and are strictly more efficient than the DNF, CNF, and Zhegalkin polynomial representations.
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Pré-publication, Document de travail
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Contributeur : Romain Péchoux <>
Soumis le : vendredi 30 juin 2017 - 15:00:10
Dernière modification le : jeudi 11 janvier 2018 - 06:25:24


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  • HAL Id : hal-01551761, version 1


Miguel Couceiro, Pierre Mercuriali, Romain Péchoux. Comparing the efficiency of normal form systems to represent Boolean functions. 2017. 〈hal-01551761〉



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