University of Sheffield: Description of the LaSIE-II System as Used for MUC-7 K Humphreys author R Gaizauskas author S Azzam author C Huyck author B Mitchell author H Cunningham author Y Wilks author 1998 text Seventh Message Understanding Conference (MUC-7): Proceedings of a Conference Held in Fairfax, Virginia, April 29 - May 1, 1998 conference publication humphreys-etal-1998-university https://aclanthology.org/M98-1007/ 1998