[BMa97] A query evaluation strategy for deductive databases with presence of negation based on HLPN (High-Level Petri Net)
Conférence Internationale avec comité de lecture :
IEEE Int. Conf. on Systems, Man, and Cybernetics, Orlando, US,
January 1997,
pp.2386-2391,
motcle:
Résumé:
We present an optimized recursive query evaluation for deductive databases with the presence of negative literals, based on the Deductive High-Level Petri Net (DHLPN) model. The syntax and semantics of this model are derived frown High-Level Petri Nets. Such a model benefits from the control structure inherent to Petri nets, allowing the capture of rules' stratification, in order to interpret, without ambiguities, negative literals in rules, particularly during a recursive query evaluation.
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