Following is a note to Corpora list with references to some articles
and studies about temporal expressions in NL texts. (01)
For a good compendium of the many ways of representing and reasoning
about time, I recommend the 60-page "Catalog of Temporal Theories"
by Pat Hayes: http://www.ihmc.us/users/phayes/docs/timeCatalog.pdf (02)
At the end of that catalog, Pat includes a very important disclaimer:
> There is almost no end to the temporal structures that could be defined
> and that might be useful. For example, this document has not considered
> intermittent intervals, or developed the idea of branching-time clocks,
> or transitivity tables for relativistic time. However, these ideas are
> clearly capable of considerable expressive power, and I hope that the
> careful comparative development might be of some utility to future
> temporal formalizers. (03)
In short, don't expect, imagine, or hope that any particular formulation
is, will be, or can be the final, definitive, word on time. (04)
John (05)
-------- Original Message --------
Subject: Re: [Corpora-List] Temporal expression definition
Date: Tue, 11 Mar 2014 18:54:56 +0000
From: Michele Filannino <michele.filannino@xxxxxxxxxxxxxxxxxxx>
To: corpora@xxxxxxxxxxxx (06)
Hi Olivier, (07)
a temporal expression is defined in: (08)
* Setzer, A. Temporal Information in Newswire Articles; An Annotation
Scheme and Corpus Study. PhD thesis, University of Sheffield, 2001.
<ftp://ftp.dcs.shef.ac.uk/home/robertg/theses/setzer_thesis.pdf> (09)
* Lisa Ferro, Robyn Kozierok, Laurie Gerber, Beth Sundheim, Inderjeet
Mani, and George Wilson. 2002. Annotating temporal information: from
theory to practice. In Proceedings of the second international
conference on Human Language Technology Research (HLT '02). Morgan
Kaufmann Publishers Inc., San Francisco, CA, USA, 226-230.
<http://dl.acm.org/citation.cfm?id=1289202> (010)
*
http://www.timeml.org/tempeval2/tempeval2-trial/guidelines/timex3guidelines-072009.pdf (011)
(section
2) (012)
The annotation standard for temporal information (temporal expressions,
events and temporal links) is ISO-TimeML.
If you are interested in temporal information extraction systems I
suggest you to have a look at TempEval-3 challenge: (013)
*
http://aclweb.org/aclwiki/index.php?title=Temporal_Expression_Recognition_and_Normalisation_(State_of_the_art) (014)
* http://derczynski.com/sheffield/papers/tempeval-3.pdf (015)
I hope it will help,
michele. (016)
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