29 Jul 2004 / Proceedings of the Third International Workshop on the Evaluation of Systems for the Semantic Analysis of Text (SENSEVAL-3), (2004), Barcelona, Spain, 239-242
20 Feb 2002 / Twelfth Conference on Uncertainty in Artificial Intelligence, E. Horvitz and F. Jensen eds., Morgan Kaufmann, pp. 381-388, Portland, Oregon, August 1996