This book constitutes the refereed proceedings of the 11th European Conference on Principles and Practice of Knowledge Discovery in Databases, PKDD 2007, held in Warsaw, Poland, in September 2007, co-located with ECML 2007, the 18th European Conference on Machine Learning.
The 28 revised full papers and 35 revised short papers presented together with abstracts of 4 invited talks were carefully reviewed and selected from 592 papers submitted to both, ECML and PKDD. The papers present original results on leading-edge subjects of knowledge discovery from conventional and complex data and address all current issues in the area.