Basically, you just want to create a TimeMention.
Here is a short example:
final String docText = jcas.getDocumentText();
final Matcher dateMatcher = DATE_PATTERN.matcher( docText );
if ( dateMatcher.matches() ) {
final TimeMention docTime = new TimeMention( jcas );
docTime.setBegin( dateMatcher.start( 1 ) );
docTime.setEnd( dateMatcher.end( 2 ) );
docTime.setId( 0 );
docTime.addToIndexes();
}
If you do want to use the org.cleartk.timeml.type.DocumentCreationTime class
then you can do so. For later fetching and use, with a TimeMention you'll rely
on the class type and id while on the DocumentCreationTime you can just use the
class type.
Sean
-----Original Message-----
From: Abramowitsch, Peter [mailto:[email protected]]
Sent: Wednesday, July 13, 2016 2:47 PM
To: [email protected]
Subject: Re: Help needed with document creation time/date
Thanks Sean. Great advice.
I have a regexNER, but didn't go that route because it looked as if there was
an inbuilt mechanism waiting to be activated.
Say I know the time from some external source, is there a kosher way I can
inject it into the CAS as a creation time property so that it can be retrieved
later by a client that knows only the serialized CAS?
Peter
On 7/13/16, 11:41 AM, "Finan, Sean" <[email protected]>
wrote:
>Hi Peter,
>
>Our group has used two different approaches, depending upon the note type:
>1. Use a custom AE that creates creation time based upon a regex.
>This works well for notes that have a header or footer with a known format.
>2. Use the last normalized temporal expression. For my test notes
>this worked more frequently than you would think (~90%), but I would
>not go this route unless you have thoroughly thought about what is in
>your notes and how you are going to use the document creation time.
>
>That is all that we've done with respect to getting the creation time
>from the actual text. If you have any kind of structured data tied to
>the note that indicates date, then you can tie things (e.g. doctimerel,
>doctime) together post-process. We are doing this in one project.
>
>Sean
>
>-----Original Message-----
>From: Abramowitsch, Peter [mailto:[email protected]]
>Sent: Wednesday, July 13, 2016 2:33 PM
>To: [email protected]
>Subject: Help needed with document creation time/date
>
>Hello All
>
>How can I get Ctakes to deduce the document creation datetime from the
>text. I have a pipeline including the following engines Basic Token
>Processing FastUMLS
>
>Zoner
>
>ClearNLPDependencyParserAE
>
>PolarityCleartkAnalysisEngine
>
>UncertaintyCleartkAnalysisEngine
>
>HistoryCleartkAnalysisEngine
>
>ConditionalCleartkAnalysisEngine
>
>GenericCleartkAnalysisEngine
>
>SubjectCleartkAnalysisEngine
>
>EventAnnotator
>
>AnalysisEngineFactory.createEngineDescription(CopyPropertiesToTemporalE
>ven
>tAnnotator.class)
>
>DocTimeRelAnnotator
>
>BackwardsTimeAnnotator
>
>EventTimeRelationAnnotator
>
>EventEventRelationAnnotator
>
>
>I see that there is a DocumentCreationTime type, but it seems to be
>initialized from inside one of the ClearTKAnnotators.
>
>I cannot find any documentation and don't know if it is looking for
>particular manifestations in the text or whether a property needs to be
>set externally on the JCAS or one of the SOFAs.
>
>
>Any help out there? Examples?
>
>
>Many thanks,
>
>Peter
