1. [1] Tatebayashi, K., Teshima, S., and Hasegawa, R. (2008). Introduction to MT System, JUSE Publishing Co. (in Japanese)
2. [2] Ohkubo, M., and Nagata, Y. (2015). Methods for analyzing small sample data in MT systems，Journal of Japan Industrial Management Association，66(1), pp.30-38. (in Japanese)
3. [3] Uemura, K. (2014). Application of ensemble learning method for MT method constraint resolution, Waseda University Graduation Thesis．
4. [4] Zhou, Zhi-Hua. (2012). Ensemble Methods: Foundations and Algorithms, CRC Press．
5. [5] Margineantu, Dragos D., and Thomas G. Dietterich (1997). Pruning adaptive boosting, ICML. 97.