Sobre o uso da gramática de dependência extensível na geração de língua natural: questões de generalidade, instanciabilidade e complexidade / On the application of extensible dependency grammar to natural language generation: generality, instantiability and complexity issues

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Natural Language Generation (NLG) concerns assigning linguistic form to data in nonlinguistic representation (Reiter &Dale, 2000); Linguistic Realization (LR), in turn, comprises all strictly target language-dependent NLG tasks. This work looks into RL systems from the perspective of three fundamental requirements - namely generality, instantiability, and complexity and the tension between them in the state of the art. We argue for the formal evaluation of models against these criteria and focus on constraint-based models (Schulte, 2002) as tools to reconcile them. In this class of models we identify the recent development of Debusmann (2006) - Extensible Dependency Grammar (XDG) - and its implementation - the XDG Development Toolkit (XDK) - as an especially promising platform for RL work, in spite of never having been used as such. Our practical contributions comprehend a successful effort to make the XDK more efficient and a formulation of lexicalization disjunction suitable to XDG, illustrating its potential advantages in a full-fledged NLG system

ASSUNTO(S)

modularity extensible dependency grammar gramática de dependência extensível inteligência artificial programação por restrições artificial intelligence xdg grammar engineering natural language generation modularidade geração de língua natural engenharia gramatical constraint programming xdg

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