Sean, for temporal expressions specifically, see this paper from BioNLP last year:
http://aclweb.org/anthology/W/W15/W15-3809.pdf Timothy Miller; Steven Bethard; Dmitriy Dligach; Chen Lin; Guergana Savova Extracting Time Expressions from Clinical Text in short, yes the SVM-based BIO taggers showed better performance than the CRF or constituency-tree classifiers. Tim On Tue, 2016-07-05 at 21:41 +0000, Mullane, Sean *HS wrote: > Thank you for the links. Does that mean that the SVM-based approach > from your first link has performed better than the CRF-based approach > in CRFTimeAnnotator.java? > > > > Thanks, > > Sean > > > > From: Savova, Guergana [mailto:[email protected]] > Sent: Friday, June 24, 2016 6:24 PM > To: '[email protected]' > Subject: RE: update on temporal relations > > > > > The best performing methods thus far have been released. They are > described in http://www.ncbi.nlm.nih.gov/pubmed/26521301 > > The results are state-of-the-art, see the recent community shared task > http://alt.qcri.org/semeval2016/task12/ > > > > We are actively working on the topic and will be releasing novel > methods as we investigate them. > > Hope this helps. > > --Guergana > > > > Guergana Savova, PhD, FACMI > > Associate Professor > > PI Natural Language Processing Lab > > Boston Children's Hospital and Harvard Medical School > > 300 Longwood Avenue > > Mailstop: BCH3092 > > Enders 144.1 > > Boston, MA 02115 > > Tel: (617) 919-2972 > > Fax: (617) 730-0817 > > Harvard Scholar: http://scholar.harvard.edu/guergana_k_savova/biocv > > > > From: Mullane, Sean *HS [mailto:[email protected]] > Sent: Friday, June 24, 2016 5:04 PM > To: '[email protected]' <[email protected]> > Subject: update on temporal relations > > > > > There was some mention previously (June 2015, I think) on the mailing > list about the next release of cTAKES including improved temporal > relation extraction. Can anyone share information about what > improvements or new features will be included and when the release is > expected? > > > > Thanks, > > Sean > >
