Lecture Notes in Computer Science Commenced Publication in 1973 Founding and Former Series Editors: Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen Editorial Board David Hutchison Lancaster University, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Alfred Kobsa University of California, Irvine, CA, USA Friedemann Mattern ETH Zurich, Switzerland John C. Mitchell Stanford University, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel Oscar Nierstrasz University of Bern, Switzerland C. Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen TU Dortmund University, Germany Madhu Sudan Microsoft Research, Cambridge, MA, USA Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Gerhard Weikum Max-Planck Institute of Computer Science, Saarbruecken, Germany 5968 Janis Grundspenkis Marite Kirikova Yannis Manolopoulos Leonids Novickis (Eds.) Advances in Databases and Information Systems Associated Workshops and Doctoral Consortium of the 13th East European Conference, ADBIS 2009 Riga, Latvia, September 7-10, 2009 Revised Selected Papers 13 Volume Editors Janis Grundspenkis Riga Technical University, Dept. of Systems Theory and Design Meza str 1/4, Riga, Latvia, LV 1048 E-mail:
[email protected] Marite Kirikova Riga Technical University, Institute of Applied Computer Systems Meza str 1/4, Riga, Latvia, LV 1048 E-mail:
[email protected] Yannis Manolopoulos Aristotle University, Dept. of Informatics Thessaloniki, 54124, Greece E-mail:
[email protected] Leonids Novickis Riga Technical University, Division of Applied Computer Systems Software Meza str 1/4, Riga, Latvia, LV 1048 E-mail:
[email protected] Library of Congress Control Number: 2010922319 CR Subject Classification (1998): H.2, H.3, H.4, H.5, D.2, J.1 LNCS Sublibrary: SL 3 – Information Systems and Application, incl. Internet/Web and HCI ISSN ISBN-10 ISBN-13 0302-9743 3-642-12081-4 Springer Berlin Heidelberg New York 978-3-642-12081-7 Springer Berlin Heidelberg New York This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. springer.com © Springer-Verlag Berlin Heidelberg 2010 Printed in Germany Typesetting: Camera-ready by author, data conversion by Scientific Publishing Services, Chennai, India Printed on acid-free paper 06/3180 Editors’ Preface f