Linguistic issues in the development of ReGra: A grammar checker for Brazilian Portuguese
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1998-01-01
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Martins, Ronaldo Teixeira
Hasegawa, Ricardo
Gracas Volpe Nunes, Maria Das
Montilha, Gisele [UNESP]
De Oliveira, Osvaldo Novais
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This paper presents a number of linguistic and computational issues identified during the implementation of a general use grammar checker for contemporary Brazilian Portuguese, ReGra, that has been incorporated in the word processor REDATOR by Itautec/Philco (Brazil). Two main strategies were employed in the implementation of correction rules an error-driven, localist approach based on the identification of patterns indicative of grammatical mistakes and a more generic approach that requires automatic syntactic analysis. In this discussion, particular emphasis is given to the development of a parser based on a phrase structure grammar comprising over 600 production rules. As for the computational performance, ReGra permits texts to be revised at a rate of ca. 200 words per second. © 1998, Cambridge University Press. All rights reserved.
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Natural Language Engineering, v. 4, n. 4, p. 287-307, 1998.