7Chapelle O. Scholkopf B. Zien A. Semi-Supervised Learning [M]. Cambridge. MA: MIT Press. 2006.
8Shahshahani B. Landgrebe D. The effect of unlabeled samples in reducing the small sample size problem and mitigating the Hughes phenomenon [J]. IEEE Trans on GeoScience and Remote Sensing. 1994. 32(5): 1087-1095.
9Miller D J. Uyar H S. A mixture of experts classifier with learning based on both labelled and unlabelled data [C] // Advances in Neural Information Processing System 9. Cambridge, MA: MIT Press, 1997: 571-577.
10Joachirns T. Transductive inference for text classification using support vector machines [G] //Bratko I. Dzerski S, eds. Proc of ICML'99. San Francisco: Morgan Kaufmann, 1999: 200-209.