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" <sean.fi...@childrens.harvard.edu> 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:pabramowit...@hearst.com] >Sent: Wednesday, July 13, 2016 2:33 PM >To: dev@ctakes.apache.org >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(CopyPropertiesToTemporalEven >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
