[Corpora-List] tools for QLF?

Mark A. Greenwood mark at dcs.shef.ac.uk
Sat Jul 16 16:27:00 CEST 2005


Hi,
You might be interested in the BuChart parser which is shipped with the
GATE framework (http://gate.ac.uk). This produces both syntactic parse
trees and a simplified QLF representation. It also includes grammar
rules specifically designed to handle questions (although I can't
remember exactly how it deals with why questions).

For example parsing the question "Who wrote Hamlet?" gives the following
representation:

qvar(e1), qatr(e1,name), person(e1), lsubj(e2,e1), write(e2),
time(e2,past), aspect(e2,simple), voice(e2,active), lobj(e2,e3),
name(e3,'Hamlet')

Here the qvar represents the entity sought by the question and you can
see that entity e1 is a person, so the question is looking for a person
as an answer.

Hope this is helpful,

Mark A. Greenwood


Suzan Verberne wrote:

> Hi all,

>

> I am a PhD student working on a question answering approach for

> why-questions.

> When looking for a semantic representation formalism, I ran into QLF

> (Alshawi, 1990). It would be great to have a tool for creating a QLF

> from a syntactic parse tree. Unfortunately, I cannot find any tools that

> can do this.

>

> Does anyone know of a tool for creating QLFs?

> Or does anyone know of any other semantic representation for which tools

> are available?

>

> Thank you for your response!

>

> Suzan Verberne

>







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