January 1998, Vol. 15, No. 1 Calendar Intelligent Systems Report is an official sponsor of Practical Applications (PA) Expo '98, March 23-27, London, U.K. The PA Expo includes tracks on Intelligent Agent and Multi-Agent Tech-nology (PAAM '98); Prolog and Con- straint Technology (PAP/PACT '98); Knowledge Discovery and Data Mining (PADD '98); and Knowledge Manage-ment (PAKeM '98). Contact The Practical Application Co., P.O. Box 137, Blackpool, FY2 9UN, U.K., tel.: +44 1253 358081, 11; http://www.demon.co.uk/ar/TPAC. AI Feb. 11-13: Engineering of Intelligent Systems (EIS '98) Tenerife, Spain. Contact [email protected]