1Soderland S.Learning information extraction rules for semistructured and Free Text[J].Machine Learning,1999,34(1):233-272. 被引量：1
2Freitag D.Machine learning for information extraction in information domains[J].Machine Learning,2000,39(2):169-202. 被引量：1
3Muslea I,Minton S,Craig A,et al.Active learning for hierarchical wrapper induction[Z].In Proceedings of the Sixteenth National Conference on Artificial Intelligence and Eleventh Conference on Innovative Applications of Artificial Intelligence,Orlando,Flor ida,USA,2007. 被引量：1
4Kushmerick N.Wrapper induction:efficiency and expressiveness[J].Artincal Intelligence Journal,2000:15-68. 被引量：1
5McCallum A,Fritag D and peraeira F.Maximum entropy Markov models for information extraction and segmentation.Proc.ICML2000:591-598. 被引量：1
