8Clough P. Plagiarism in Natural and Programming Languages: An Overview of Current Tools and Technologies [R]. Research Memoranda: CS-00-05, Department of Computer Science, University of Sheffield, UK, 2000:1-31.
9Peng F, McCallum A. Information Extraction from Research Papers Using Conditional Random Fields [J]. Information Processing & Management, 2006, 42(4): 963-979.
10Hart H, Giles C L, Manavoglu E, et al. Automatic Document Metadata Extraction Using Support Vector Machines [C]. In: Proceedings of 2003 Joint Conference on Digital Libraries. IEEE, 2003: 37-48.