The goal of this paper is to describe and thoroughly test a decision procedure, called KSAT, checking satisfiability in the terminological logic ALC. KSAT is said to be SAT-based as it is defined in terms of a decision procedure for propositional satisfiability (SAT). The tests are performed comparing KSAT with, among other procedures, KRIS, a state-of-the-art tableau-based implementation of a decision procedure for ALC. KSAT outperforms KRIS of orders of magnitude. Furthermore, the empirical results highlight an intrinsic weakeness that tableau-based decision procedures have with respect to SAT-based decision procedures
A SAT-based Decision Procedure for ALC
Giunchiglia, Fausto;Sebastiani, Roberto
1996-01-01
Abstract
The goal of this paper is to describe and thoroughly test a decision procedure, called KSAT, checking satisfiability in the terminological logic ALC. KSAT is said to be SAT-based as it is defined in terms of a decision procedure for propositional satisfiability (SAT). The tests are performed comparing KSAT with, among other procedures, KRIS, a state-of-the-art tableau-based implementation of a decision procedure for ALC. KSAT outperforms KRIS of orders of magnitude. Furthermore, the empirical results highlight an intrinsic weakeness that tableau-based decision procedures have with respect to SAT-based decision proceduresFile in questo prodotto:
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