[developers] Handling unknown lexical entries with ACE parsing

Francis Bond bond at ieee.org
Wed Jan 11 06:28:41 CET 2017

There is some discussion here (for PET):

the chart mapping approach also works for ACE.

You have to use an external POS tagger (which you could fake if all unknown
words get the same POS).

We have this working for Zhong and Jacy (and I think INDRA).  I would be
happy to walk you through it if you promise to enhance the documentation

On Tue, Jan 10, 2017 at 4:57 PM, Olga Zamaraeva <olzama at uw.edu> wrote:

> Dear Developers,
> I would like to parse some text (with ACE) using a small grammar and I am
> likely to encounter stems that I do not have in the lexicon. My
> understanding is that it is possible to add a generic lexical entry for
> e.g. "verb", and analyze some of the unknown words morphologically this
> way. I am looking for any documentation/advice on how this is done. Would
> anyone be able to point me to anything?
> Thank you,
> Olga

Francis Bond <http://www3.ntu.edu.sg/home/fcbond/>
Division of Linguistics and Multilingual Studies
Nanyang Technological University
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