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    Olsen, Kai A. 2012. A Smart Proofreader for All Natural Languages: Achieving Semantic Understanding by Majority Vote. ISRN Artificial Intelligence, Vol. 2012, p. 1.


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Dependency-based n-gram models for general purpose sentence realisation

  • YUQING GUO (a1), HAIFENG WANG (a2) and JOSEF VAN GENABITH (a3)
  • DOI: http://dx.doi.org/10.1017/S1351324910000288
  • Published online: 29 November 2010
Abstract
Abstract

This paper presents a general-purpose, wide-coverage, probabilistic sentence generator based on dependency n-gram models. This is particularly interesting as many semantic or abstract syntactic input specifications for sentence realisation can be represented as labelled bi-lexical dependencies or typed predicate-argument structures. Our generation method captures the mapping between semantic representations and surface forms by linearising a set of dependencies directly, rather than via the application of grammar rules as in more traditional chart-style or unification-based generators. In contrast to conventional n-gram language models over surface word forms, we exploit structural information and various linguistic features inherent in the dependency representations to constrain the generation space and improve the generation quality. A series of experiments shows that dependency-based n-gram models generalise well to different languages (English and Chinese) and representations (LFG and CoNLL). Compared with state-of-the-art generation systems, our general-purpose sentence realiser is highly competitive with the added advantages of being simple, fast, robust and accurate.

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Natural Language Engineering
  • ISSN: 1351-3249
  • EISSN: 1469-8110
  • URL: /core/journals/natural-language-engineering
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