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index-3.html
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index-3.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML>
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<HEAD>
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<META NAME="generator" CONTENT="http://txt2tags.sf.net">
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</HEAD><BODY BGCOLOR="white" TEXT="black">
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<FONT SIZE="4">
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</FONT></CENTER>
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<P>
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<center>
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</P>
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<P>
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<IMG ALIGN="middle" SRC="doc/gf-logo.png" BORDER="0" ALT="">
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</P>
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<H1>Grammatical Framework</H1>
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<P>
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Version 3.0
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</P>
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<P>
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June 2008
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</P>
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<P>
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</center>
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</P>
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<P>
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<CODE>|</CODE> <A HREF="demos/">Demos</A>
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<CODE>|</CODE> <A HREF="download">Download</A>
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<CODE>|</CODE> <A HREF="download">Development</A>
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<CODE>|</CODE> <A HREF="doc/events.html">Events</A>
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<CODE>|</CODE> <A HREF="lib/">Libraries</A>
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<CODE>|</CODE> <A HREF="doc/gf-people.html">People</A>
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<CODE>|</CODE> <A HREF="doc/projects.html">Projects</A>
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<CODE>|</CODE> <A HREF="doc/gf-tutorial.html">Publications</A>
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<CODE>|</CODE> <A HREF="doc/gf-refman.html">Reference</A>
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<CODE>|</CODE> <A HREF="doc/gf-tutorial.html">Tutorial</A>
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<CODE>|</CODE>
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</P>
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<P>
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<font size=-1>
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</P>
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<H2>News</H2>
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<P>
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27 June 2008: release of GF 3.0 and a new web page; the old web page is
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<A HREF="index-2.html">here</A>.
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</P>
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<P>
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</font>
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</P>
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<H2>What is GF</H2>
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<P>
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GF, Grammatical Framework, is a programming language for
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<B>multilingual grammar applications</B>. It is
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</P>
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<UL>
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<LI>a <B>special-purpose language for grammars</B>, like YACC, Bison, Happy, BNFC
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<LI>a <B>functional language</B>, like Haskell, Lisp, OCaml, Scheme, SML
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<LI>a <B>natural language processing framework</B>, like LKB, XLE, Regulus
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<LI>a <B>categorial grammar formalism</B>, like ACG, CCG
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<LI>a <B>logical framework</B>, like Agda, Coq, Isabelle
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</UL>
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<P>
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Don't worry if you don't know most of the references above - but if you do know at
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least one, it may help you to get a first idea of what GF is.
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</P>
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<H2>Applications</H2>
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<P>
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GF can be used for building
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</P>
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<UL>
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<LI>[text translators ]
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<LI>[speech translators ]
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<LI>[natural-language interfaces ]
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<LI>[multilingual web pages ]
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<LI>[multilingual authoring systems ]
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<LI>[dialogue systems ]
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<LI>[language training systems ]
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<LI>[natural language resources ]
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</UL>
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<H2>Availability</H2>
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<P>
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GF is <B>open-source</B>, licensed under [GPL ] (the program) and [LGPL ] (the libraries). It
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is available for
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</P>
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<UL>
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<LI>[Linux ]
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<LI>[Mac OS X ]
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<LI>[Windows ]
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<LI>via compilation to [JavaScript ], almost any platform that has a web browser
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</UL>
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<H2>Projects</H2>
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<P>
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GF was born in 1998 at Xerox Research Centre Europe, Grenoble in the project
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Multilingual Document Authoring. At Xerox, it was used for prototypes including
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</P>
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<UL>
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<LI>restaurant phrase book in 6 languages
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<LI>database queries in 7 languages
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<LI>alarm system instructions in 5 languages
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<LI>medical drug descriptions in 2 languages
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</UL>
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<P>
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Later projects using GF and involving third parties include, in chronological order,
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</P>
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<UL>
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<LI>GF-Alfa: natural language interface to formal proofs
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<LI>GF-KeY: authoring and translation of software specifications
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<LI>TALK: multilingual and multimodal spoken dialogue systems
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<LI>WebALT: multilingual generation of mathematical exercises (commercial project)
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<LI>MultiWiki: multilingual Wiki for restaurant reviews
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<LI>SALDO: Swedish morphological dictionary based on tools developed for GF
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</UL>
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<P>
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Academically, GF has been used in four [PhD theses ], and resulted in around
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fifty [scientific publications ].
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</P>
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<H2>Programming in GF</H2>
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<P>
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GF is easy to learn by following the <A HREF="doc/gf-tutorial.html">tutorial</A>. You can write your
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first translator in 15 minutes.
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</P>
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<P>
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GF has an interactive command interpreter, as well as a batch compiler. Grammars can be
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compiled to parser and translator code in many different formats. These components can
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then be embedded in applications written in other programming languages. The formats
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currently supported are:
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</P>
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<UL>
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<LI>Haskell
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<LI>Java
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<LI>JavaScript
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<LI>Prolog
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<LI>Speech recognition: HTK/ATK, Nuance, JSGF
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</UL>
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<P>
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The GF programming language is high-level and advanced, featuring
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</P>
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<UL>
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<LI>static type checking
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<LI>higher-order functions
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<LI>dependent types
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<LI>pattern matching with data constructors and regular expressions
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<LI>module system with multiple inheritance and parametrized modules
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</UL>
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<H2>Libraries</H2>
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<P>
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Libraries are at the heart of modern software engineering. In natural language
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applications, libraries are a way to cope with thousands of details involved in
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syntax, lexicon, and inflection. The <A HREF="lib/">GF resource grammar library</A> has
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support for an increasing number of languages, currently including
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</P>
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<UL>
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<LI>Arabic (partial)
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<LI>Bulgarian
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<LI>Catalan (partial)
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<LI>Danish
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<LI>English
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<LI>Finnish
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<LI>French
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<LI>German
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<LI>Hindi/Urdu (partial)
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<LI><A HREF="http://www.interlingua.com/">Interlingua</A>
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<LI>Italian
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<LI>Norwegian bokmål
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<LI>Russian
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<LI>Spanish
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<LI>Swedish
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</UL>
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<P>
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Adding a language to the resource library takes 3 to 9
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months - <A HREF="doc/projects.html">contributions</A>
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are welcome!
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</P>
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<!-- html code generated by txt2tags 2.4 (http://txt2tags.sf.net) -->
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<!-- cmdline: txt2tags -thtml index-3.txt -->
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</BODY></HTML>
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157
index-3.txt
Normal file
157
index-3.txt
Normal file
@@ -0,0 +1,157 @@
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%!postproc(html): "#BECE" "<center>"
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%!postproc(html): "#ENCE" "</center>"
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%!postproc(html): "#BESMALL" "<font size=-1>"
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%!postproc(html): "#ENSMALL" "</font>"
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#BECE
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[doc/gf-logo.png]
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=Grammatical Framework=
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Version 3.0
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June 2008
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#ENCE
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``|`` [Demos demos/]
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``|`` [Download download]
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``|`` [Development download]
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``|`` [Events doc/events.html]
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``|`` [Libraries lib/]
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``|`` [People doc/gf-people.html]
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``|`` [Projects doc/projects.html]
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``|`` [Publications doc/gf-tutorial.html]
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``|`` [Reference doc/gf-refman.html]
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``|`` [Tutorial doc/gf-tutorial.html]
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``|``
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#BESMALL
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==News==
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27 June 2008: release of GF 3.0 and a new web page; the old web page is
|
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[here index-2.html].
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#ENSMALL
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==What is GF==
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GF, Grammatical Framework, is a programming language for
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**multilingual grammar applications**. It is
|
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- a **special-purpose language for grammars**, like YACC, Bison, Happy, BNFC
|
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- a **functional language**, like Haskell, Lisp, OCaml, Scheme, SML
|
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- a **natural language processing framework**, like LKB, XLE, Regulus
|
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- a **categorial grammar formalism**, like ACG, CCG
|
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- a **logical framework**, like Agda, Coq, Isabelle
|
||||
|
||||
|
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Don't worry if you don't know most of the references above - but if you do know at
|
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least one, it may help you to get a first idea of what GF is.
|
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|
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|
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==Applications==
|
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|
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GF can be used for building
|
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- [text translators ]
|
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- [speech translators ]
|
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- [natural-language interfaces ]
|
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- [multilingual web pages ]
|
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- [multilingual authoring systems ]
|
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- [dialogue systems ]
|
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- [language training systems ]
|
||||
- [natural language resources ]
|
||||
|
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|
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==Availability==
|
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|
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GF is **open-source**, licensed under [GPL ] (the program) and [LGPL ] (the libraries). It
|
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is available for
|
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- [Linux ]
|
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- [Mac OS X ]
|
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- [Windows ]
|
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- via compilation to [JavaScript ], almost any platform that has a web browser
|
||||
|
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|
||||
==Projects==
|
||||
|
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GF was born in 1998 at Xerox Research Centre Europe, Grenoble in the project
|
||||
Multilingual Document Authoring. At Xerox, it was used for prototypes including
|
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- restaurant phrase book in 6 languages
|
||||
- database queries in 7 languages
|
||||
- alarm system instructions in 5 languages
|
||||
- medical drug descriptions in 2 languages
|
||||
|
||||
|
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Later projects using GF and involving third parties include, in chronological order,
|
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- GF-Alfa: natural language interface to formal proofs
|
||||
- GF-KeY: authoring and translation of software specifications
|
||||
- TALK: multilingual and multimodal spoken dialogue systems
|
||||
- WebALT: multilingual generation of mathematical exercises (commercial project)
|
||||
- MultiWiki: multilingual Wiki for restaurant reviews
|
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- SALDO: Swedish morphological dictionary based on tools developed for GF
|
||||
|
||||
|
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Academically, GF has been used in four [PhD theses ], and resulted in around
|
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fifty [scientific publications ].
|
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|
||||
|
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==Programming in GF==
|
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|
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GF is easy to learn by following the [tutorial doc/gf-tutorial.html]. You can write your
|
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first translator in 15 minutes.
|
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|
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GF has an interactive command interpreter, as well as a batch compiler. Grammars can be
|
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compiled to parser and translator code in many different formats. These components can
|
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then be embedded in applications written in other programming languages. The formats
|
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currently supported are:
|
||||
- Haskell
|
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- Java
|
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- JavaScript
|
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- Prolog
|
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- Speech recognition: HTK/ATK, Nuance, JSGF
|
||||
|
||||
|
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The GF programming language is high-level and advanced, featuring
|
||||
- static type checking
|
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- higher-order functions
|
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- dependent types
|
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- pattern matching with data constructors and regular expressions
|
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- module system with multiple inheritance and parametrized modules
|
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|
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|
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==Libraries==
|
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|
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Libraries are at the heart of modern software engineering. In natural language
|
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applications, libraries are a way to cope with thousands of details involved in
|
||||
syntax, lexicon, and inflection. The [GF resource grammar library lib/] has
|
||||
support for an increasing number of languages, currently including
|
||||
- Arabic (partial)
|
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- Bulgarian
|
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- Catalan (partial)
|
||||
- Danish
|
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- English
|
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- Finnish
|
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- French
|
||||
- German
|
||||
- Hindi/Urdu (partial)
|
||||
- [Interlingua http://www.interlingua.com/]
|
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- Italian
|
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- Norwegian bokmål
|
||||
- Russian
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- Spanish
|
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- Swedish
|
||||
|
||||
|
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Adding a language to the resource library takes 3 to 9
|
||||
months - [contributions doc/projects.html]
|
||||
are welcome!
|
||||
|
||||
|
||||
|
||||
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