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Modern Greek Resource Grammar


The Modern Greek Resource Grammar is a computational grammar for Modern Greek currently under development at the Department of Computational Linguistics (COLI) of the University of Saarland. It is written in the Head-Driven Phrase Structure Grammar (HPSG) formalism and uses the LKB ("Linguistic Knowledge Builder", see Copestake, 2002)) as engineering platform. Reuse of the English Resource Grammar (ERG, see Flickinger, 2000), and the Japanese computational grammar JACY (see Siegel, 2002) is facilitated by the LinGO Grammar Matrix (see Bender et al., 2002), an open source tool ("starter-kit") designed for the rapid development of multilingual broad coverage grammars couched in HPSG and MRS and based on LKB.

The Modern Greek Resource Grammar has been under development since January 2003 as part of the DELPHIN Collaboration.

The Modern Greek Resource Grammar includes:

  • the implementation of basic clause syntax;

  • the implementation of word order phenomena in Modern Greek;

  • the implementation of cliticization phenomena in Modern Greek;

  • the implementation of valence alternating constructions, subject-verb inversion, subordinate clauses, UDCs, raising and control, politeness contructions, among others

Current development in the Modern Greek Resource Grammar focuses on:

  • the connection of the grammar system to a morphological analysis system;

  • the incorporation of use of default entries for words unknown to the Modern Greek HPSG lexicon;

  • construction of a treebank;

  • application to the grammar of stochastic disambiguation methods (Redwoods project, Stanford University, Oepen et al. 2002) for treatment of ambiguity;

  • incrementally increasing coverage in Modern Greek (e.g., internal syntax of noun phrases, passives, coordination, etc.)

DOWNLOAD THE GRAMMAR and test suite (updated version of 2007-01-29). If you do not have the LexDB installed yet, please, do set the following from the LKB user interface:

Options -> Set options -> LexDB : Nil

This way, you will be able to load the lexicon.tdl file including around 10.000 entries (total number of LexDB entries: 39.632).

Otherwise, loading the grammar will be impossible.

The documentation here refers to an older version of the grammar (August-2005).

All the new developments in the grammar are reported in Alexandros Poulis' M.Sc. thesis, which has been successfully completed in May 2007. For a copy of the thesis, please, contact Alexandros directly (translexis@yahoo.de).

It would be nice if you would give us a short feedback about the usage of the grammar. We offer to give notice by email, every time there is a new version available.

Please contact:
Modern Greek Resource Grammar
Last modified: Fri Aug 17 16:19:03 CEST 2007