[Corpora-List] Looking for toolkit for verb tense detection

[Alexander Yeh]

Qi Li wrote:
> Hi Corpora members,
>
> Does anyone know if there are some toolkits for word tense detection?
> I'm doing research on IE system, and need tense of verbs as feature in
> classifier. There are lot of papers mentioned word tense, but nobody
> said how they got the tense, it seems easy to do and even get high
> performance.

Many part-of-speech (p-o-s) finders will differentiate between certain 
tenses of verbs.

For example, part-of-speech finders trained on the Penn Tree bank will 
try to distinguish between the following (from
http://www.ling.upenn.edu/courses/Fall_2003/ling001/penn_treebank_pos.html):

27.  	VB  	Verb, base form
28. 	VBD 	Verb, past tense
29. 	VBG 	Verb, gerund or present participle
30. 	VBN 	Verb, past participle
31. 	VBP 	Verb, non-3rd person singular present
32. 	VBZ 	Verb, 3rd person singular present

Hope this helps
-Alex Yeh



>
> Thanks much for any help.
>
> best,
>
> Qi Li
> ==========================
> Department of Computer Sci.
> Graduate Center, CUNY
> Email: liqiearth at gmail.com <mailto:liqiearth at gmail.com>



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