FERRET: Interactive Question-Answering for Real-World Environments Andrew Hickl author Patrick Wang author John Lehmann author Sanda Harabagiu author 2006-07 text Proceedings of the COLING/ACL 2006 Interactive Presentation Sessions James Curran editor Association for Computational Linguistics Sydney, Australia conference publication hickl-etal-2006-ferret 10.3115/1225403.1225410 https://aclanthology.org/P06-4007/ 2006-07 25 28