简介:Thispaperproposesanewwaytoimprovetheperformanceofdependencyparser:subdividingverbsaccordingtotheirgrammaticalfunctionsandintegratingtheinformationofverbsubclassesintolexicalizedparsingmodel.Firstly,theschemeofverbsubdivisionisdescribed.Secondly,amaximumentropymodelispresentedtodistinguishverbsubclasses.Finally,astatisticalparserisdevelopedtoevaluatetheverbsubdivision.Experimentalresultsindicatethattheuseofverbsubclasseshasagoodinfluenceonparsingperformance.