Loglinear models and conditional random fields

作者：Elkan,Charles摘要：Log-linearmodelsareafar-reachingextensionoflogisticregression,whilecon-ditionalrandomfields(CRFs)areaspecialcaseoflog-linearmodelssuitableforso-calledstructuredlearningtasks.Structuredlearningmeanslearningtopredictoutputsthathaveinternalstructure.Forexample,recognizingha