Acquiring and Exploiting the User’s Knowledge in Guidance Interactions Eyal Shifroni author Uzzi Ornan author 1992-03 text Third Conference on Applied Natural Language Processing Association for Computational Linguistics Trento, Italy conference publication shifroni-ornan-1992-acquiring 10.3115/974499.974551 https://aclanthology.org/A92-1042/ 1992-03 249 250