Contents Volume 37, 2010 Text Relatedness Based on a Word Thesaurus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 G. Tsatsaronis, I. Varlamis, and M. Vazirgiannis Predicting the Performance of IDA* Using Conditional Distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 U. Zahavi, A. Felner, N. Burch, and R. C. Holte Mechanisms for Multi-Unit Auctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 S. Dobzinski and N. Nisan Interactive Cost Configuration over Decision Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 H. R. Andersen, T. Hadzic, and D. Pisinger From Frequency to Meaning: Vector Space Models of Semantics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 P. D. Turney and P. Pantel On Action Theory Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 I. J. Varzinczak Context-based Word Acquisition for Situated Dialogue in a Virtual World . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247 S. Qu and J. Y. Chai Join-Graph Propagation Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 R. Mateescu, K. Kask, V. Gogate, and R. Dechter An Investigation into Mathematical Programming for Finite Horizon Decentralized POMDPs . . . . . . . . . . . . 329 R. Aras and A. Dutech Training a Multilingual Sportscaster: Using Perceptual Context to Learn Language . . . . . . . . . . . . . . . . . . . . 397 D. L. Chen, J. Kim, and R. J. Mooney Reasoning about the Transfer of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437 W. van der Hoek, D. Walther, and M. Wooldridge Multiattribute Auctions Based on Generalized Additive Independence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479 Y. Engel and M. P. Wellman Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527 J ournal of Artificial Intelligence Research AN INTERNATIONAL ELECTRONIC AND PRINT JOURNAL Editors and Staff, 2010 Editor-in-Chief Adnan Darwiche Associate Editor-in-Chief Shlomo Zilberstein Associate Editors Chitta Baral Regina Barzilay Christian Bessiere Michael Bowling Ronen Brafman Gerhard Brewka Vincent Conitzer Giuseppe De Giacomo Dieter Fox Hector Geffner Joerg Hoffmann Adele Howe Thorsten Joachims Jerome Lang Lillian Lee Kevin Leyton-Brown Shaul Markovitch Pierre Marquis Chris Meek Pedro Meseguer Andrew Ng Dragomir Radev Jeff Rosenschein Dale Schuurmans Sylvie Thiebaux Gerard Verfaillie Michael Wooldridge Editorial Board David Blei Blai Bonet Xiaoping Chen Yiling Chen Yixin Chen David Chiang Alessandro Cimatti Minh Binh Do Prashant Doshi Stefan Edelkamp Edith Elkind Alan Fern Amir Globerson Judy Goldsmith Eric Hansen Patrik Haslum Malte Helmert Holger Hoos Manfred Jaeger Kristian Kersting Dan Klein Javier Larrosa Kathryn Laskey Felip Manya Lluis Marquez Hwee Tou Ng Ilkka Niemela Bo Pang Simon Parsons Joelle Pineau Pascal Poupart Ariel Procaccia Daniel Reeves Riccardo Rosati Wheeler Ruml Ashish Sabharwal Lakhdar Sais Torsten Schaub Tobias Scheffer Thomas Schiex Christian Shelton Ben Taskar Kristen Venable Kiri Wagstaff Jia-Huai You Advisory Board Fahiem Bacchus Peter Bartlett Walter Daelemans Rina Dechter Luc De Raedt Oren Etzioni Boi Faltings Maria Fox Russell Greiner Subbarao Kambhampati Sven Koenig Gerhard Lakemeyer Paolo Liberatore Fangzhen Lin Daniel Marcu Steven Minton Martha Pollack Francesca Rossi Diana Spears Milind Tambe Moshe Tennenholtz Michael Wellman Makoto Yokoo Nevin Zhang Toby Walsh Dan Weld Managing Editor Steven Minton Electronic Publishing Editor Daniel Bryce Special Projects Toby Walsh Production Supervisor Lillian Bluestein About JAIR Subscriptions JAIR’s editorial board is dedicated to the rapid dissemination of important research results to the global AI community. The journal's scope encompasses all areas of artificial intelligence, including automated reasoning, cognitive modeling, knowledge representation, learning, natural language, neural networks, perception, and robotics. For information regarding submissions, AI Access Foundation, or the JAIR editorial charter, please see jair.org JAIR (ISSN 1076-975) is published three times a year by the Association for the Advancement of Artificial Intelligence (AAAI), 445 Burgess Drive, Suite 100 Menlo Park, CA 94025-3442, telephone (650) 328-3123. Members of AAAI receive a discount on JAIR subscriptions. The JAIR subscription price is $85.00 per volume or issue. Inquiries regarding membership in the AAAI should be sent to the AAAI at the above address. Microfilm, Back, or Replacement Copies Back issues of JAIR (from volume 18 onward) are available from the Association for the Advancement of Artificial Intelligence. Send requests to AAAI, 445 Burgess Drive, Menlo Park, California 94025. Microform copies are available from ProQuest Information and Learning, 300 North Zeeb Road, Ann Arbor, MI 48106. Telephone (800) 521-3044 or (734) 761-4700. Copying Articles for Personal Use Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, or for educational classroom use, is granted by AI Access Foundation. This consent does not extend to other kinds of copying, such as for general distribution, resale, advertising, or for creating new collective works. Please contact AAAI for such permission. Address Change Please notify AAAI eight weeks in advance of a change of address. Send old label with new address to AAAI, 445 Burgess Drive, Suite 100, Menlo Park, CA 94025-3442. Periodicals Postage paid at Menlo Park, CA and additional mailing offices. Postmaster: Change Service Requested. Send address changes to AAAI, 445 Burgess Drive, Suite 100, Menlo Park, CA 94025-3442. Copyright © 2010 by AI Access Foundation and the Association for the Advancement of Artificial Intelligence. All rights reserved. No part of this publication may be reproduced in whole or in part without prior written permission. Unless otherwise stated, the views expressed in published material are those of the authors and do not necessarily reflect the policies or opinions of JAIR, its editors and staff, AI Access Foundation, or the Association for the Advancement of Artificial Intelligence. ISBN 978-1-57735-480-2