Why corpus-based statistics-oriented machine translation Keh-Yih Su author Jing-Shin Chang author 1992-jun 25-27 text Proceedings of the Fourth Conference on Theoretical and Methodological Issues in Machine Translation of Natural Languages Montréal, Canada conference publication su-chang-1992-corpus https://aclanthology.org/1992.tmi-1.22/ 1992-jun 25-27