Combining Statistical and Knowledge-Based Spoken Language Understanding in Conditional Models Ye-Yi Wang author Alex Acero author Milind Mahajan author John Lee author 2006-07 text Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions Association for Computational Linguistics Sydney, Australia conference publication wang-etal-2006-combining https://aclanthology.org/P06-2113/ 2006-07 882 889