Text Generation: Reexamining G-TAG with Abstract Categorial Grammars (Génération de textes : G-TAG revisité avec les Grammaires Catégorielles Abstraites) [in French]

G-TAG is a formalism dedicated to text generation. It relies on the Tree Adjoining Grammar (TAG) formalism and extends it with several specific notions allowing for the construction of a surface form from a conceptual representation. This conceptual representation is independent from the target language. The goal of this paper is to study G-TAG and its specific notions from the perspective given by Abstract Categorial Grammars (ACG). We use the reversibility property of ACG and the encoding of TAG they offer. We show that the key G-TAG notions of g-derivation tree and lexicalization are naturally expressed in ACG. The construction of surface forms can then rely on the general ACG algorithms and some operations that G-TAG is lacking can be freely accounted for. Mots-clés : TAG, G-TAG, génération, réalisation syntaxique, grammaires catégorielles abstraites.