- There is continuing research interest in comparison of the complexity of problems within the class NP-Complete. This paper examines the representational power of conjunctive norm...
Procedures for Boolean satis ability most commonly work with Conjunctive Normal Form. Powerful SAT techniques based on implications and con icts can be retained when the usual CNF...
We study the expressiveness of a positive fragment of path queries, denoted Path+ , on node-labeled trees documents. The expressiveness of Path+ is studied from two angles. First, ...
Yuqing Wu, Dirk Van Gucht, Marc Gyssens, Jan Pared...
Most well-known algorithms for equational solving are based on quantifier elimination. This technique iteratively eliminates the innermost block of existential/universal quantifie...
Satisfiability (SAT) solvers often benefit from a preprocessing of the formula to be decided. For formulae in conjunctive normal form (CNF), subsumed clauses may be removed or par...