Constraint-driven Grammar Description

Abstract : For a large number of applications in Natural Language Processing (NLP) (e.g., Dialogue Systems, Automatic Summarisation, Machine-Translation, etc.), one needs a fine-grained description of language. By fine-grained, it is generally meant that this description should precisely define the relations between the constituents of the sentence (often referred to as deep syntactic description), and, also, when possible, contain information about the meaning of the sentence (semantic representation). For such a fine-grained description of language to be processed by a computer, it is usually encoded in a mathematical framework called Formal Grammar. Here, we will consider three grammar formalisms whose expressivity lies beyond that of CFG making them suitable for the description of the syntax of several natural languages. These formalisms are Tree-Adjoining Grammar (TAG), Lexical Functional Grammar (LFG) and Property Grammar (PG). They have been used to describe several electronic grammar for e.g. English (XTAG Research Group, 2001), Chinese (Fang and King, 2007), or French (Prost, 2008). TAG will serve as a basis for illustrating one of the main issues raised when developing real-size grammatical resources, namely redundancy. Redundancy is the fact that grammar rules often share significant common substructures. This redundancy greatly impacts grammar development and maintenance (how to ensure coherence between grammar rules?). LFG and PG will serve as support formalisms in the context of cross- framework grammar engineering.
Type de document :
Chapitre d'ouvrage
Philippe Blache; Henning Christiansen; Verónica Dahl; Denys Duchier; Jørgen Villadsen. Constraints and Language, Cambridge Scholar Publishing, pp.93-121, 2014
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01059206
Contributeur : Yannick Parmentier <>
Soumis le : vendredi 29 août 2014 - 15:24:45
Dernière modification le : jeudi 17 janvier 2019 - 15:06:06

Identifiants

  • HAL Id : hal-01059206, version 1

Citation

Benoît Crabbé, Denys Duchier, Yannick Parmentier, Simon Petitjean. Constraint-driven Grammar Description. Philippe Blache; Henning Christiansen; Verónica Dahl; Denys Duchier; Jørgen Villadsen. Constraints and Language, Cambridge Scholar Publishing, pp.93-121, 2014. 〈hal-01059206〉

Partager

Métriques

Consultations de la notice

398