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 6080 Friedrich Eisenbrand F. Bruce Shepherd (Eds.) Integer Programming and Combinatorial Optimization 14th International Conference, IPCO 2010 Lausanne, Switzerland, June 9-11, 2010 Proceedings 13 Volume Editors Friedrich Eisenbrand École Polytechnique Féderale de Lausanne Institute of Mathematics 1015 Lausanne, Switzerland E-mail:
[email protected] F. Bruce Shepherd McGill University Department of Mathematics and Statistics 805 Sherbrooke West, Montreal, Quebec, H3A 2K6, Canada E-mail:
[email protected] Library of Congress Control Number: 2010926408 CR Subject Classification (1998): F.2, E.1, I.3.5, G.2, G.1.6, F.2.2 LNCS Sublibrary: SL 1 – Theoretical Computer Science and General Issues ISSN ISBN-10 ISBN-13 0302-9743 3-642-13035-6 Springer Berlin Heidelberg New York 978-3-642-13035-9 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 micr