View source for DATR

{{more citations needed|date=February 2013}}

'''DATR''' is a language for [[lexicon|lexical]] [[knowledge representation]].<ref name="Y.1998">{{cite book|author=Vincent Ooi (B. Y.)|title=Computer Corpus Lexicography|url=https://books.google.com/books?id=C9Wu7Zz8Ec4C&pg=PA97|access-date=20 February 2013|year=1998|publisher=Edinburgh University Press|isbn=978-0-7486-0815-7|pages=97–100}}</ref> The lexical knowledge is encoded in a network of nodes. Each node has a set of attributes encoded with it. A node can represent a [[word]] or a word form.

DATR was developed in the late 1980s by Roger Evans, Gerald Gazdar and Bill Keller,<ref name=DATR>{{cite journal |last=Evans |first=Roger |last2=Gazdar |first2=Gerald |title=DATR: A language for lexical knowledge representation |journal=Computational Linguistics |year=1996 |volume=22 |issue=2 |pages=167–216 |url=http://acl.ldc.upenn.edu/J/J96/J96-2002.pdf |access-date=2014-03-17 |url-status=dead |archive-url=https://web.archive.org/web/20060619140838/http://acl.ldc.upenn.edu/J/J96/J96-2002.pdf |archive-date=2006-06-19 }}</ref><ref>{{cite conference|url=http://acl.ldc.upenn.edu/C/C96/C96-2109.pdf |title=An evaluation semantics for DATR theories |first=Bill |last=Keller |year=1996 |conference=Proceedings of the 16th conference on Computational linguistics-Volume 2. Association for Computational Linguistics |archive-url=https://web.archive.org/web/20140317122538/http://acl.ldc.upenn.edu/C/C96/C96-2109.pdf |archive-date=2014-03-17 |access-date=2014-03-17 |url-status=dead }}</ref> and used extensively in the 1990s; the standard specification is contained in the Evans and Gazdar RFC, available on the Sussex website (below). DATR has been implemented in a variety of programming languages, and several implementations are available on the internet, including an RFC compliant implementation at the Bielefeld website (below).

DATR is still used for encoding inheritance networks in various linguistic and non-linguistic domains and is under discussion as a standard notation for the representation of lexical information.

==References==
{{Reflist}}

==External links==
*[http://www.datr.org.uk/ DATR at the University of Sussex] {{Webarchive|url=https://web.archive.org/web/20160304085525/http://www.datr.org.uk/ |date=2016-03-04 }}
*[https://web.archive.org/web/20110719101756/http://www.spectrum.uni-bielefeld.de/DATR/index.html DATR repository and RFC compliant ZDATR implementation at Universität Bielefeld]

[[Category:Natural language processing]]
[[Category:Domain-specific knowledge representation languages]]


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