Computer Science – Computation and Language
Scientific paper
2009-05-20
Computer Science
Computation and Language
Paper presented at the 18th Computational Linguistics In the Netherlands Meeting (CLIN), Nijmegen, 10 December 2007, 15pp
Scientific paper
This paper is about the technical design of a large computational lexicon, its storage, and its access from a Prolog environment. Traditionally, efficient access and storage of data structures is implemented by a relational database management system. In Delilah, a lexicon-based NLP system, efficient access to the lexicon by the semantic generator is vital. We show that our highly detailed HPSG-style lexical specifications do not fit well in the Relational Model, and that they cannot be efficiently retrieved. We argue that they fit more naturally in the Object-Oriented Model. Although storage of objects is redundant, we claim that efficient access is still possible by applying indexing, and compression techniques from the Relational Model to the Object-Oriented Model. We demonstrate that it is possible to implement object-oriented storage and fast access in ISO Prolog.
Cremers Crit
Hijzelendoorn Maarten
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