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[ontolog-forum] Time expressions

To: "'[ontolog-forum] '" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: John F Sowa <sowa@xxxxxxxxxxx>
Date: Tue, 18 Mar 2014 09:22:09 -0400
Message-id: <53284881.8040102@xxxxxxxxxxx>
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)

     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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