Truly Parallel Understanding of Text. - Yeong-Ho Yu; Robert F. Simmons (AAAI, 1990)

Extra output biased learning. - Yeong-Ho Yu; Robert F. Simmons (IJCNN, 1990)

Descending epsilon in back-propagation: a technique for better generalization. - Yeong-Ho Yu; R. F. Simmond (IJCNN, 1990)

The Acquisition and Application of Context Sensitive Grammar for English. - Robert F. Simmons; Yeong-Ho Yu (ACL, 1991)

The Acquisition and Use of Context-Dependent Grammars for English. - Robert F. Simmons; Yeong-Ho Yu (Comput. Linguistics, 1992)