How to do coreference resolution in NLTK?

[archit agrawal]

Hi,

Does NLTK support coreference resolution and if yes how can I use it. I tried to google it but wasn't able to find anything relevant. What I want to do is to replace a pronoun in a sentence with its antecedent. For e.g "Ram bought a mobile. Now he wants to sell it."

What I want to do in the above sentence is to replace 'he' in the second sentence with 'Ram'. Can this be done?

[mohamed lichouri]

Hello Archit;

Your probleme is handeled by the NLTK, precisely in "Anaphora & Presupposition Resolution: Extension of the NLTK DRT System".
http://code.google.com/p/nltk-drt/

[archit agrawal]

Thanks Mohamed, will look at it. :-)

[Abhijeet104]

Where do I get usage information related to usage of NLTK DRT system?
I've downloaded it but stuck with its usage.

[Mohamed Lichouri]

http://nltk-drt.googlecode.com/files/NLTK-DRT.pdf

http://docs.huihoo.com/nltk/0.9.5/guides/drt.html

http://nltk.googlecode.com/svn-/trunk/doc/book/ch10.html

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[Abhijeet104]

I am not able to understand the usage of NLTK-DRT. Sorry I'm being very dumb.


Can somebody give an example and explain?
(e.g. John is a Doctor. He lives in Chicago.)

Want to replace 'He' with 'John'.