@article{ duchier-cl2009,
  categorie = {a},
  title = {eXtensible MetaGrammar},
  journal = {Computational Linguistics},
  author = {Benoit Crabbé and Denys Duchier and Claire Gardent and Joseph Le Roux and Yannick Parmentier},
  note = {Submitted},
  year = {2009},
  keywords = {rang.a},
  abstract = {In this article, we introduce the eXtensible MetaGrammar (XMG), a framework for specifying and compiling tree-based grammars such as Tree Adjoining Grammars (TAG). We argue that XMG satisfies the requirements summarised in Shieber (1984) for computational grammar formalisms and in particular, that the high notational expressivity of XMG together with its declarativity and computational effectiveness greatly facilitate the difficult task of grammar writing and make it particularly appropriate for a fast prototyping of the kind of deep grammars that are used in applications requiring high precision in grammar modelling (language teaching, man/machine dialogue systems, data-to-text generation). We present the methodology used to specify a TAG for French augmented with a unification based compositional semantics. We show how the core XMG formalism can be extended to handle Multi-Components TAG and Interaction Grammars and we briefly report on several grammars for French, English and German that were implemented using XMG.}}