Agents and Peer-to-Peer Computing Second International Workshop,
Peer-to-peer (P2P) computing is currently attracting enormous public attention, spurred by the popularity of file-sharing systems such as Napster, Gnutella, Morpheus, Kaza, and several others. In P2P systems, a very large number of autonomous computing no
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Subseries of Lecture Notes in Computer Science
2872
Gianluca Moro Claudio Sartori Munindar P. Singh (Eds.)
Agents and Peer-to-Peer Computing Second International Workshop, AP2PC 2003 Melbourne, Australia, July 14, 2003 Revised and Invited Papers
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Series Editors Jaime G. Carbonell, Carnegie Mellon University, Pittsburgh, PA, USA Jörg Siekmann, University of Saarland, Saarbrücken, Germany Volume Editors Gianluca Moro Università di Bologna Dipartimento di Informatica, Elettronica e Sistemistica (DEIS) Via Venezia 52, 47023 Cesena, Italy E-mail: [email protected] Claudio Sartori Università di Bologna CSITE - CNR Viale Risorgimento, 2, 40136 Bologna, Italy E-mail: [email protected] Munindar P. Singh North Carolina State University Department of Computer Science Raleigh, NC 27695-7535, USA E-mail: [email protected]
Library of Congress Control Number: 2004116524
CR Subject Classification (1998): I.2.11, I.2, C.2.4, C.2 ISSN 0302-9743 ISBN 3-540-24053-5 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 is a part of Springer Science+Business Media springeronline.com © Springer-Verlag Berlin Heidelberg 2004 Printed in Germany Typesetting: Camera-ready by author, data conversion by PTP-Berlin, Protago-TeX-Production GmbH Printed on acid-free paper SPIN: 11365105 06/3142 543210
Preface
Peer-to-peer (P2P) computing is attracting enormous media attention. Typical applications are file sharing, as in Gnutella, and exploiting distributed computing power, as in the SETI (Search for Extra Terrestrial Intelligence) project. The most popular applications at present are limited in their scope, but they are highlighting some of the key challenges of P2P computing and exposing the limitations of traditional approaches to addressing such challenges. First, the peers are autonomous entities: they can cooperatively participate or not according to their own choice. Second, the peers are heterogeneous, meaning that in general we would not be justified in making strong assumptions about how they are designed or how their information structures are conceptually modeled. The applications of P2P computing go beyond file sharing or load balancing of computing resources. Understood more generally, P2P computing is a natural approach to the development of large systems from autonomous, heterogeneous components. The obvious idea would be for entities to function as peers that provide services or expose resources for sharing. Services or resources can then be compose
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