NP-SPEC
NP-SPEC: An executable specification language for solving all problems in NP. A logic-based specification language, called NP-SPEC, is presented. The language is obtained by extending DATALOG through allowing a limited use of some second-order predicates of predefined form. NP-SPEC programs specify solutions to problems in a very abstract and concise way, and are executable. In the present prototype they are compiled to PROLOG code, which is run to construct outputs. Second-order predicates of suitable form allow to limit the size of search spaces in order to obtain reasonably efficient construction of problem solutions. NP-SPEC expressive power is precisely characterized as to express exactly the problems in the class NP. The specification of several combinatorial problems in NP-SPEC is shown, and the efficiency of the generated programs is evaluated.
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References in zbMATH (referenced in 20 articles , 1 standard article )
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- Cadoli, Marco; Ianni, Giovambattista; Palopoli, Luigi; Schaerf, Andrea; Vasile, Domenico: NP-SPEC: An executable specification language for solving all problems in NP (2000)
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