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Re: [xtag-meeting]: Question supertagging
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To: Alexandra Kinyon <kinyon@linc.cis.upenn.edu>
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Subject: Re: [xtag-meeting]: Question supertagging
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From: Anoop Sarkar <anoop@linc.cis.upenn.edu>
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Date: Wed, 07 Aug 2002 17:05:29 EDT
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cc: anoop@linc.cis.upenn.edu
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In-reply-to: Your message of "Wed, 07 Aug 2002 16:29:58 EDT." <3D518346.1958D08C@linc.cis.upenn.edu>
> Hi everyone,
> Three quick questions from Pierre Boullier :
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> -Apart from Srini's, are there any other supertaggers implemented ?
> -If so, does anyone have a reference or know someone we could ask ?
John Chen implemented one a couple of years ago. He has a paper in some conf,
probably on his website as well. Recently, John, Srini and Mike Collins have
used re-ranking to improve on an existing supertagger (either John's or a
newly implemented one) -- the results were reported in TAG+ in Venice.
More recently, Libin Shen (2nd year student of Joshi's) has new numbers on
supertagging that beat previous results. His email is libin@linc.
> -Has there been any attempt to do rule-based supertagging ?
I think Srini tried to use Transformation Based Learning for supertagging. It
was infeasible with the existing Brill implementation due to memory and time
overruns as far as I can remember. I think he probably has a line in this
thesis saying this.
-A
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