Gerrit M. Rentier ITK (G.M.Rentier@kub.nl)
Fri, 8 Apr 1994 17:40:32 +0200
This message announces a release of the Pleuk grammar development system. Pleuk is intended to be a shell for grammar development, in that many different grammatical formalisms can be embedded within it. The following grammatical formalisms currently work with Pleuk: Cfg A simple context-free grammar system, intended for demonstration purposes. HPSG-PL A system for developing HPSG-style grammars, produced at Simon Fraser University, Canada, by Fred Popowich, Sandi Kodric and Carl Vogel. Mike A simple graph-based unification system, enhanced with additional operations for the treatment of free word order proposed by Mike Reape in various publications. SLE A graph-based formalism enhanced with arbitrary relations in the manner of Johnson & Rosner and Doerre & Eisele. Delayed evaluation is used to compute infinite relations. This system has been used for the development of several HPSG-style grammars. Term A term-based unification grammar system, originally developed for the support of Unification Categorial Grammar (Zeevat, Klein and Calder). Sample grammars are provided for all of these formalisms. Work continues apace on other formalisms, including Bob Carpenter's Ale system for typed feature structures, and Veronica Dahl's Static Discontinuity Grammars. In designing Pleuk, we have attempted to make no assumptions as to the syntax and semantics of grammar formalisms. This means that Pleuk gives relatively little support for the detailed operations of particular grammars---the formalism has to supply parsers and generators. We do provide relatively sophisticated support for manipulating grammars as a whole (in terms of the files that define some grammar), interacting with analysers for those grammars and for the display of grammatical definitions or the results of analysis. The latter is achieved by means of a printer specifically designed for representing information in conventional linguistic terms, e.g. attribute-value diagrams, trees, sets, sequences and arrangements of these. We are making Pleuk available to the computational linguistics community in the hope that it will provide a set of facilities for the production of new grammar formalisms. We also expect that certain of its components will be easily reused in other systems. Pleuk requires SICStus prolog version 2.1#6 or later, plus a variety of ancillary programs available free of charge from many FTP servers. Pleuk is available via FTP from the University of Georgia Artificial Intelligence FTP library, hostname ai.uga.edu. The directory /ai.natural.language contains (amongst other things) the files: pleuk.1.0.tar.Z pleuk.PSmanuals.tar.Z pleuk.README The first of these contains the system, the second system manuals in tarred compressed PostScript format, and the third contains information and instructions for unpacking the system. Thanks to Michael Covington for providing this service. Pleuk will also be available shortly from the Natural Language Software Registry, German Research Institute for Artificial Intelligence (DKFI), Saarbruecken. For more information, send email to For more information, send email to pleuk@cogsci.ed.ac.uk. Jo Calder jcalder@cs.sfu.ca School of Computing Science Simon Fraser University Burnaby, BC Canada, V5A 1S6 Kevin Humphreys kwh@cogsci.ed.ac.uk Centre for Cognitive Science University of Edinburgh 2 Buccleuch Place Edinburgh Scotland EH8 9LW Chris Brew chrisbr@cogsci.ed.ac.uk Language Technology Group Human Communication Research Centre University of Edinburgh 2 Buccleuch Place Edinburgh Scotland EH8 9LW Mike Reape mreape@cs.tcd.ie Department of Computer Science, O'Reilly Institute, Trinity College Dublin, 0.5 Westland Row, Dublin 2, Ireland ---------------------------------------------------------------------- -- Gerrit M. Rentier Institute for Language Technology and Artificial Intelligence (ITK) & Center for Language Studies (CLS) Tilburg University, PO Box 90153, NL-5000 LE Tilburg The Netherlands Tel. (+31) 013 662970 Fax. (+31) 013 662537 Email rentier@kub.nl
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