PKDD 2000 Discovery Challenge Call for Contributions The Discovery Challenge will be held as a part of the 4th European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD2000), September 13-16, Lyon, France. Like last year in Prague, there are two datasets available to prospective participants: one form financial domain, the other from medical domain. The deadline from submissions is August, 20. Only people registered for the PKDD2000 can participate in the Challenge. For more info about the Challenge, visit http://www.cwi.nl/conferences/pkdd2000/ For more info about PKDD2000, visit http://eric.univ-lyon2.fr/~pkdd2000/ Petr Berka and Arno Siebes co-chairs of the Challenge