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2012•Computer Engineering and Applications JournalOpen access

Research on conversion from conjunctive normal form to disjunctive normal form

Zongtian Liu

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Abstract

In order to calculate the discernable function of rough set,intent reduction of concept lattice of formal concept analysis and rule simplification in logic program design,that conversion from Conjunction Normal Form(CNF)to Disjunction Normal Form(DNF) is proposed as a critical problem.By using minimal cover,realize the conversion from CNF to DNF and give an incremental algorithm.In order to expand the use of normal form conversion,define a pseudo-CNF,and give the conversion method form pseudo-CNF to DNF.

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What this paper is about

In order to calculate the discernable function of rough set,intent reduction of concept lattice of formal concept analysis and rule simplification in logic program design,that conversion from Conjunction Normal Form(CNF)to Disjunction Normal Form(DNF) is proposed as a critical problem.By using minimal cover,realize the conversion from CNF to DNF and give an incremental algorithm.In order to expand the use of normal form conversion,define a pseudo-CNF,and give the conversion method form pseudo-CNF to DNF.

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Available abstract

In order to calculate the discernable function of rough set,intent reduction of concept lattice of formal concept analysis and rule simplification in logic program design,that conversion from Conjunction Normal Form(CNF)to Disjunction Normal Form(DNF) is proposed as a critical problem.By using minimal cover,realize the conversion from CNF to DNF and give an incremental algorithm.In order to expand the use of normal form conversion,define a pseudo-CNF,and give the conversion method form pseudo-CNF to DNF.

Key concepts: Conjunctive normal form, Disjunctive normal form, Computer science, Reduction (mathematics), Rough set, Mathematics, Canonical normal form, Algorithm

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