2EIKVIK L.Information extraction from World Wide Web:a survey[M].Norway:Norweigan Computing Center,1999:8-9.
3HSU C H,DUNG M T.Generating finite-sate transducers for semi-structured data extraction from the Web[J].Information Systems,1998,23(8):521-538.
4CARDIE C.Empirical methods in information extraction[J].AI Magazine,1997,18(4):65-78.
5MUSLEA I.Extraction patterns for information extraction tasks:a survey:proc.of AAAI Workshop on Machine Learning for Information Extraction[C].Orlando,Florida:[s.n.],1999.
6APPELT D D.Introduction to information extraction[J].AI Commun.1999,12(3):161-172.
7AONE C,HALVERSON L,HAMPTON T,et al.SRA:description of the IE2 system used for MUC-7:proc.of MUC-7[C].Fairfax,Virginia:[s.n.],1998.
8MILLER S,CRYSTAL M,FOX H,et al.Algorithms that learn to extract information-BBN:description of the SIFT system as used for MUC-7:proc.of MUC-7[C].Fairfax,Virginia:[s.n.],1998.
9CIRAVEGNA F.Adaptive information extraction from text by rule induction and generalization:proc.of the 17th International Joint Conf.on Artificial Intelligence[C].Seattle:[s.n.],2001.
10CRISTIANINI N,SHAWE J T.An introduction to support vector machines[M].Cambridge:Cambridge University Press,2000:35-38.
