3Sutton C,McCallum A,Rohanimanesh K.Dynamic Conditional Random Fields:Factorized Probabilistic Models for Labeling and Segmenting Sequence Data[J].The Journal of Machine Learning Research,2007,8(3):693-723.
4The ACE 2008 Evaluation Plan.Assessment of Detection and Recognition of Entities and Relations Within and Across Documents[EB/OL].[2008-08-08].http:/ /www.Itl.nist.gov/iad/mig//tests/ace/ace08/doc/ace08-evalplan.v1.2d.pdf.