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<TITLE>Dialogue system grammars using GF resource.</TITLE>
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<P ALIGN="center"><CENTER><H1>Dialogue system grammars using GF resource.</H1>
<FONT SIZE="4">
AR 16/5/2006
</FONT></CENTER>
<H2>Functionality and purpose</H2>
<P>
Dialogue system abstract syntax + concrete syntaxes for
different languages. One of them is Prolog (with some resemblance to
dialogue moves in GoDiS).
</P>
<P>
The purpose is to show how new systems can be built for new domains just
by specifying just two things:
</P>
<UL>
<LI>a domain ontology in abstract syntax
<LI>a domain terminologies in concrete syntaxes
</UL>
<P>
This is based on two library elements
</P>
<UL>
<LI>base dialogue grammars
<LI>resource grammar libraries
</UL>
<P>
In general, the only kind of elements that need to be added are
constants (0-place fun's) of the following categories from Dialogue.gf.
</P>
<PRE>
Kind ; -- e.g. Room
Object Kind ; -- e.g. Kitchen
Oper0 ; -- e.g. Stop
Oper1 Kind ; -- e.g. Play
Oper2 Kind Kind ; -- e.g. Add
Move ; -- e.g. MorningMode
</PRE>
<P></P>
<H2>Files in this directory</H2>
<P>
Files (for X = Eng, Fin, Fre, Prolog, Swe):
</P>
<P>
Files provided as library to build on:
</P>
<PRE>
Dialogue.gf -- base dialogue grammar
DialogueX.gf -- implementation instance
DialogueI.gf -- implementation functor
ResProlog.gf -- help constructs for Prolog terms
Weekday.gf -- untility grammar with weekdays
WeekdayX.gf
AuxDialogue.gf-- interface of auxiliary resource-defined opers
AuxX.gf -- instances for different languages
</PRE>
<P>
Files implementing two examples.
</P>
<PRE>
Agenda.gf -- application grammar for agenda
AgendaX.gf
Lights.gf -- application grammar for lights
Lights.gf
</PRE>
<P></P>
<H2>Files needed to build a new application</H2>
<P>
To build a new application for domain Dom, you thus need
</P>
<PRE>
Dom.gf -- introduce fun's in Kind, Object, Oper0, Oper1, Oper2
DomX.gf -- concrete syntax of the new fun's for language X
</PRE>
<P></P>
<H2>Some tests</H2>
<P>
You first need to do, with the latest resource grammar version,
</P>
<UL>
<LI><CODE>make present</CODE> in <CODE>lib/resource-1.0</CODE>
<P></P>
To test an application in GF, do e.g.
<LI><CODE>make lights</CODE> to make a package with all the Lights grammars
<LI><CODE>make engcorpus</CODE> to generate an English corpus
<LI><CODE>make swecorpus</CODE> to generate a Swedish corpus
</UL>
<P>
Here are some other commands:
</P>
<UL>
<LI><CODE>i LightsEng.gf</CODE> in current dir, to load a grammar
<LI><CODE>gr | l -all</CODE> to random-generate
<LI><CODE>gt -depth=4 | pt -transform=typecheck | l -all</CODE> to generate a corpus
<LI><CODE>p "switch off all lights in the kitchen"</CODE> to parse
<LI><CODE>i LightsProlog.gf</CODE> to load the Prolog version
<LI><CODE>pg -printer=gsl -startcat=Move</CODE> to print a Nuance grammar
<LI><CODE>p -lang=LightsEng "switch off all lights" | pt -transform=solve | l -lang=LightsProlog</CODE>
to translate from English to Prolog
<LI><CODE>si -tr -lang=LightsEng | p -cat=Move -lang=LightsEng | pt -transform=solve | l -lang=LightsProlog</CODE>
to translate English speech into Prolog
</UL>
<P>
The last one is the coolest - but you may need to enable the <CODE>speech_input</CODE> command by installing ATK
and recompiling GF.
</P>
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