[Corpora-List] ProbBank purpose role: PNC or PRP?

alueckin luecking at em.uni-frankfurt.de
Fri Mar 11 09:51:33 CET 2022


Thanks for your replies! That clarifies matters a lot. I pushed an issue and very likely will collapse both labels, as suggested in the cool Mark Neumann post!

Best,

Andy

Am 02.03.22 um 15:48 schrieb Nathan Schneider:
> All,
>
> I suggest opening an issue on the PropBank issue tracker:
> https://github.com/propbank/propbank-release/issues/
>
> Best,
> Nathan
>
> On Wed, Mar 2, 2022 at 9:40 AM Amir Zeldes
> <Amir.Zeldes at georgetown.edu> wrote:
>
> Hi Andy,
>
> My own impression is that there is no reliable difference between
> PNC and PRP (at least not in OntoNotes, which is the corpus I know
> best). The emphasis of “purpose not cause” (PNC) seems to come
> from disagreements on how to annotate modifiers like “why”, which
> are often ambiguous between cause and purpose, so the label PNC
> says “not just purpose but also definitely not cause”. In
> OntoNotes 3 “PRP” was introduced next to PNC, but looking at
> examples, I see no real basis for the difference, except maybe as
> an ambiguity class (if you read “PRP” to mean
> ‘purpose-maybe-also-cause’). You can also notice that PNC is
> defined here as follows:
>
> https://catalog.ldc.upenn.edu/docs/LDC2007T21/propbank/english-propbank.pdf
>
> 3.8 *PNC*: “Purpose clauses are used to show the motivation for
> some action. Clauses beginning with "in order to" are canonical
> purpose clauses”
>
> But here:
>
> http://clear.colorado.edu/compsem/documents/propbank_guidelines.pdf
>
> 1.4.10: *PRP* “Purpose clauses are used to show the motivation for
> some action. Clauses beginning with ‘in order to’ and ‘so that’
> are canonical purpose clauses.”
>
> So some versions of the guidelines clearly used the exact same
> definition for the different labels. This has been noticed before,
> see this post (search for PNC, it’s a bit long):
>
> http://markneumann.xyz/blog/syntax/
>
> The author of this post suggests collapsing PRP an PNC (and also
> CAU, but that part I think is wrong).
>
> Hope this is helpful!
>
> Amir
>
> ------------
>
> Dr. Amir Zeldes
>
> Assoc. Prof. of Computational Linguistics
>
> Department of Linguistics
>
> Georgetown University
>
> 1437 37th St. NW
>
> Washington, DC 20057
>
> https://corpling.uis.georgetown.edu/amir
>
> *From:* corpora-bounces at uib.no <corpora-bounces at uib.no> *On Behalf
> Of *Christian Chiarcos
> *Sent:* Wednesday, March 2, 2022 5:07 AM
> *To:* alueckin <Luecking at em.uni-frankfurt.de>
> *Cc:* corpora at uib.no
> *Subject:* Re: [Corpora-List] ProbBank purpose role: PNC or PRP?
>
> Am Mi., 2. März 2022 um 11:01 Uhr schrieb Christian Chiarcos
> <christian.chiarcos at gmail.com>:
>
> Hi Andy,
>
> according to the 2010 guidelines
> (http://clear.colorado.edu/compsem/documents/propbank_guidelines.pdf),
> both are two different tags, see Tab. 5.2. And in the current
> frameset, both continue to be used, e.g., in
> http://verbs.colorado.edu/propbank/framesets-english-aliases/come.html
> (PRP) and
> http://verbs.colorado.edu/propbank/framesets-english-aliases/open.html
> (PNC).
>
> I guess that should have been
> https://github.com/propbank/propbank-frames/blob/master/frames/come.xml
> and
> https://github.com/propbank/propbank-frames/blob/master/frames/open.xml,
> but these role identifier haven't changed.
>
> Best,
>
> Christian
>
> In the reality of annotation, the difference can be hard to
> make at times, so that there will always be an inclination to
> generalize the one or the other.
>
> Best,
>
> Christian
>
> Am Mi., 2. März 2022 um 10:21 Uhr schrieb alueckin
> <luecking at em.uni-frankfurt.de>:
>
> Dear list,
>
> a clarification question regarding semantic role labeling
> according to
> PropBank as used, e.g., in CONLL 2012: there are two
> labels used for the
> purpose role, ARGM-PNC and ARGM-PRP. Are they used
> interchangeably?
>
> Some philology:
>
> The guidelines of CONLL 2014/15 mention only ARGM-PNC. The
> current
> PropBank guidelines (http://propbank.github.io) mention
> only ARGM-PRP. A
> break occurred in the 2005 CL paper
> (https://aclanthology.org/J05-1004/)
> where PNC is used in tab.1, p.77 but PRP is used in
> tab.13, p.99.
>
> Thanks for clarifying clues!
>
> Andy
>
>
> _______________________________________________
> UNSUBSCRIBE from this page:
> http://mailman.uib.no/options/corpora
> Corpora mailing list
> Corpora at uib.no
> https://mailman.uib.no/listinfo/corpora
>
> _______________________________________________
> UNSUBSCRIBE from this page: http://mailman.uib.no/options/corpora
> Corpora mailing list
> Corpora at uib.no
> https://mailman.uib.no/listinfo/corpora
>
>
>
> --
> Nathan Schneider
> Assistant Professor of Linguistics and Computer Science, Georgetown
> University
> http://nathan.cl
-------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/html Size: 18978 bytes Desc: not available URL: <https://mailman.uib.no/public/corpora/attachments/20220311/46f7921a/attachment.txt>



More information about the Corpora mailing list