In this paper we analyze declarative deterministic and non-deterministic semantics for active rules. In particular, we consider several (partial) stable model semantics, previously defined for deductive rules, such as well-founded, max deterministic, unique total stable model, total stable model and maximal stable model semantics. The semantics of an active program [Ascr ][Pscr ] is given by first rewriting it into a deductive program [Lscr ][Pscr ], then computing a model M defining the declarative semantics of [Lscr ][Pscr ] and, finally, applying ‘consistent’ updates contained in M to the source database. The framework we propose permits a natural integration of deductive and active rules and can also be applied to queries with function symbols or to queries over infinite databases.
Declarative semantics for active rules
Published 1998 in Theory and Practice of Logic Programming
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- Publication year
1998
- Venue
Theory and Practice of Logic Programming
- Publication date
1998-08-24
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Computer Science
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