Preface

This is the third edition of the international workshop on Management of Uncertain Data. The previous editions took place in Vienna, Austria and Auckland, New Zealand. The edition in Auckland was a combined event with the workshop on Quality in Databases. Research on uncertain data has grown over the past few years. Since the prequel to this workshop, the Twente Data Management workshop on Uncertain Data, the number of submissions about management of uncertain data to large conferences has grown rapidly. Also, more workshops on the topic are being organized, e.g. MOUND at ICDE and U’09 at KDD. This is a clear indication that there is much interest in the topic, not only from the database community, but also datamining, AI and IR. This edition, we have five research talks addressing different topics in uncertain data. In addition, we have two tutorials. The first tutorial is about probabilistic databases and is given by Christoph Koch. The second tutorial is about possibilistic databases and is given by Olivier Pivert. The second tutorial is followed by a discussion on the differences and commonalities between probabilistic and possibilistic databases. We would like to thank the reviewers for their time and effort. We would also like to thank the Centre Telematics and Information Technology for sponsoring the proceedings of the workshop.