1Ido D Lillian L, Femando C N P. Similarity- based Models of Word Co- Occurrence Probabilities[J]. Machine Learning, 1999,34:43 - 69.
2Jiang J, Conrath D. Semantic Similarity Based on Corpus Statistics and Lexical Taxonomy[C]. Proceedings of International Conference Research on Computational Linguistics, 1997:19 - 33.