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Strategies for Adding Control Information to Declarative Grammars

Hans Uszkoreit
In: Proceedings of the 29th Annual Meeting of the Association of Computational Linguistics. Annual Meeting of the Association for Computational Linguistics (ACL-91), 29th, June 18-21, Berkeley, CA, USA, Pages 237-245, ACL, 1991.


Strategies are proposed for combining different kinds of constraints in declarative grammars with a detachable layer of control information. The added control information is the basis for parametrized dynamically controlled linguistic deduction, a form of linguistic processing that permits the implementation of plausible linguistic performance models without giving up the declarative formulation of linguistic competence. The information can be used by the linguistic processor for ordering the sequence in which conjuncts and disjuncts are processed, fpr mixing depth-first and breadth-first search, for cutting off undesired derivations, and for contraint-relaxation.

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