<div dir="ltr">Hi Olivier,<div><br></div><div>a temporal expression is defined in:</div><ul><li><a href="ftp://ftp.dcs.shef.ac.uk/home/robertg/theses/setzer_thesis.pdf" target="_blank">Setzer, A. Temporal Information in Newswire Articles; An Annotation Scheme and Corpus Study. PhD thesis, University of Sheffield, 2001.</a></li>
<li><a href="http://dl.acm.org/citation.cfm?id=1289202" target="_blank">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.</a></li>
<li><a href="http://www.timeml.org/tempeval2/tempeval2-trial/guidelines/timex3guidelines-072009.pdf">http://www.timeml.org/tempeval2/tempeval2-trial/guidelines/timex3guidelines-072009.pdf</a> (section 2)<br></li></ul>
<div class="gmail_extra">The annotation standard for temporal information (temporal expressions, events and temporal links) is ISO-TimeML.</div><div class="gmail_extra">If you are interested in temporal information extraction systems I suggest you to have a look at TempEval-3 challenge:</div>
<div class="gmail_extra"><ul><li><a href="http://aclweb.org/aclwiki/index.php?title=Temporal_Expression_Recognition_and_Normalisation_(State_of_the_art)">http://aclweb.org/aclwiki/index.php?title=Temporal_Expression_Recognition_and_Normalisation_(State_of_the_art)</a><br>
</li><li><a href="http://derczynski.com/sheffield/papers/tempeval-3.pdf">http://derczynski.com/sheffield/papers/tempeval-3.pdf</a><br></li></ul><div>I hope it will help,</div><div>michele.</div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Tue, Mar 11, 2014 at 6:13 PM, Olivier Austina <span dir="ltr"><<a href="mailto:olivier.austina@gmail.com" target="_blank">olivier.austina@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr"><div>Hi,<br></div>Is there a temporal expression definition widely used? I thing about temporal research projects used in NLP applications. Thank you.<br clear="all"><div><div><div><div dir="ltr">Regards<span class=""><font color="#888888"><br>
Olivier<br><br></font></span></div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">Michele Filannino<br><br><font color="#666666">CDT PhD student in Computer Science<br>Room IT301 - IT Building<br>The University of Manchester</font><div>
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