?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=UFPRSheffield%3A+Contrasting+Rule-based+and+Support+Vector+Machine+Approaches+to+Time+Expression+Identification+in+Clinical+TempEval&rft.creator=Tissot%2C+H&rft.creator=Gorrell%2C+G&rft.creator=Roberts%2C+A&rft.creator=Derczynski%2C+L&rft.creator=Fabro%2C+MDD&rft.description=We+present+two+approaches+to+time+expression+identification%2C+as+entered+in+to+SemEval2015+Task+6%2C+Clinical+TempEval.+The+first%0D%0Ais+a+comprehensive+rule-based+approach+that%0D%0Afavoured+recall%2C+and+which+achieved+the+best%0D%0Arecall+for+time+expression+identification+in+Clinical+TempEval.+The+second+is+an+SVM-based%0D%0Asystem+built+using+readily+available+components%2C+which+was+able+to+achieve+a+competitive+F1+in+a+short+development+time.+We+discuss+how+the+two+approaches+perform+relative%0D%0Ato+each+other%2C+and+how+characteristics+of+the%0D%0Acorpus+affect+the+suitability+of+different+approaches+and+their+outcomes.&rft.publisher=Association+for+Computational+Linguistics&rft.contributor=Post%2C+Matt&rft.contributor=Kan%2C+Min-Yen&rft.contributor=Bird%2C+Steven&rft.date=2015-06&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+Post%2C+Matt+and+Kan%2C+Min-Yen+and+Bird%2C+Steven%2C+(eds.)+Proceedings+of+the+9th+International+Workshop+on+Semantic+Evaluation+(SemEval+2015).++(pp.+pp.+835-839).++Association+for+Computational+Linguistics%3A+Denver%2C+Colorado.+(2015)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10065714%2F1%2F2015-SEMEVAL-Contrasting_Rule-based_and_SVM_Approaches_to_Time_Expression_Identification.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10065714%2F&rft.rights=open