IEEE Pervasive Computing

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IEEE Pervasive Computing Contents | Zoom in | Zoom outFor navigation instructions please click here Search Issue | Next Page CS ELECTION CANDIDATES, P. 71 IEEE PRESIDENT-ELECT CANDIDATES, P. 79 SOFTWARE-BASED EVENT DETECTION, P. 95 http://www.computer.org ________________________ Contents | Zoom in | Zoom outFor navigation instructions please click here Search Issue | Next Page A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS Running in Circles Looking for a Great Computer Job or Hire? Make the Connection - IEEE Computer Society Jobs is the best niche > Software Engineer > employment source for computer science and engineering jobs, with Member of Technical Staff > Computer Scientist hundreds of jobs viewed by thousands of the finest scientists each > Dean/Professor/Instructor month - in Computer magazine and/or online! > Postdoctoral Researcher > Design Engineer > Consultant http://www.computer.org/jobs IEEE Computer Society Jobs is part of the Physics Today Career Network, a niche job board network for the physical sciences and engineering disciplines. Jobs and resumes are shared with four partner job boards - Physics Today Jobs and the American Association of Physics Teachers (AAPT), American Physical Society (APS), and AVS: Science and Technology of Materials, Interfaces, and Processing Career Centers. A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS Editor in Chief Associate Editor in Chief, Computing Practices 2010 IEEE Computer Carl K. Chang Research Features Rohit Kapur Society President Iowa State University Kathleen Swigger [email protected] James D. Isaak [email protected] University of North Texas [email protected] [email protected] Perspectives Associate Editor Bob Colwell in Chief Associate Editor in Chief, [email protected] Sumi Helal Special Issues University of Florida Bill N. Schilit Web Editor [email protected] Google Ron Vetter [email protected] [email protected] Area Editors Column Editors Software Technologies CS Publications Board Computer Architectures AI Redux Mike Hinchey David A. Grier (chair), David Steven K. Reinhardt Naren Ramakrishnan Lero—the Irish Software Bader, Angela R. Burgess, Jean- AMD Virginia Tech Engineering Research Centre Luc Gaudiot, Phillip Laplante, Databases and Information Education Web Technologies Dejan Milojičić, Linda I. Shafer, Retrieval Ann E.K. Sobel Simon S.Y. Shim Dorée Duncan Seligmann, Don Erich Neuhold Miami University San Jose State University Shafer, Steve Tanimoto, and University of Vienna Embedded Computing Roy Want Distributed Systems Tom Conte Advisory Panel Jean Bacon Georgia Tech Thomas Cain CS Magazine University of Cambridge Green IT University of Pittsburgh Operations Committee Graphics and Multimedia Kirk W. Cameron Doris L. Carver Dorée Duncan Seligmann Oliver Bimber Virginia Tech Louisiana State University (chair), David Albonesi, Johannes Kepler University Linz Industry Perspective Ralph Cavin Isabel Beichl, Carl Chang, High-Performance Computing Sumi Helal Semiconductor Research Corp. Krish Chakrabarty, Vladimir Getov University of Florida Dan Cooke Nigel Davies, Fred Douglis, University of Westminster IT Systems Perspectives Texas Tech University Hakan Erdogmus, Lars Jentsch, Information and Richard G. Mathieu Ron Hoelzeman Carl E. Landwehr, Simon Liu, Data Management James Madison University University of Pittsburgh Dejan Milojičić, John Smith, Naren Ramakrishnan Invisible Computing Naren Ramakrishnan Gabriel Taubin, Fei-Yue Wang, Virginia Tech Albrecht Schmidt Virginia Tech and Jeffrey R. Yost Multimedia University of Duisburg-Essen Ron Vetter Savitha Srinivasan The Known World University of North Carolina, IBM Almaden Research Center David A. Grier Wilmington Networking George Washington University Alf Weaver Ahmed Helmy The Profession University of Virginia University of Florida Neville Holmes Software University of Tasmania Robert B. France Security Colorado State University Jeffrey M. Voas David M. Weiss NIST Iowa State University Editorial Staff Contributing Editors Design and Production Administrative Senior Business Scott Hamilton Lee Garber Larry Bauer Staff Development Manager Senior Acquisitions Editor Bob Ward Design Products and Sandy Brown [email protected] Nancy Talbert Olga D’Astoli Services Director Senior Advertising Judith Prow Cover Design Evan Butterfield Coordinator Managing Editor Kate Wojogbe Senior Manager, Marian Anderson [email protected] Editorial Services Chris Nelson Lars Jentsch Senior Editor Manager, James Sanders Editorial Services Senior Editor Jennifer Stout Circulation: Computer (ISSN 0018-9162) is published monthly by the IEEE Computer Society. IEEE Headquarters, Three Park Avenue, 17th Floor, New York, NY 10016-5997; IEEE Computer Society Publications Office, 10662 Los Vaqueros Circle, PO Box 3014, Los Alamitos, CA 90720-1314; voice +1 714 821 8380; fax +1 714 821 4010; IEEE Computer Society Headquarters, 2001 L Street NW, Suite 700, Washington, DC 20036. IEEE Computer Society membership includes $19 for a subscription to Computer magazine. Nonmember subscription rate available upon request. Single-copy prices: members $20.00; nonmembers $99.00. Postmaster: Send undelivered copies and address changes to Computer, IEEE Membership Processing Dept., 445 Hoes Lane, Piscataway, NJ 08855. Periodicals Postage Paid at New York, New York, and at additional mailing offices. Canadian GST #125634188. Canada Post Corporation (Canadian distribution) publications mail agreement number 40013885. Return undeliverable Canadian addresses to PO Box 122, Niagara Falls, ON L2E 6S8 Canada. Printed in USA. Editorial: Unless otherwise stated, bylined articles, as well as product and service descriptions, reflect the author’s or firm’s opinion. Inclusion in Computer does not necessarily constitute endorsement by the IEEE or the Computer Society. All submissions are subject to editing for style, clarity, and space. AUGUST 2010 1 A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS http://computer.org/computer ABOUT THIS ISSUE n this issue, we look at social multimedia computing, I a new multidisciplinary research area that bridges the social science and multimedia technology; new social-networking connect services that increase access to and enrich user data in the Social Web; and an empiri- cal study of crowd-powered expansion of knowledge— a search function that originated in China—and its uniquely rich online/offline interactions. We also look at real-world distributed computing, scientific computing on the grid, and the limits of Moore’s law. CONTENTS 45 A Study of the Human Flesh Search Engine: Crowd-Powered Expansion of Online Knowledge Fei-Yue Wang, Daniel Zeng, James A. 27 Hendler, Qingpeng Zhang, Zhuo Feng, Yanqing Gao, Hui Wang, and Guanpi Lai This first comprehensive empirical study of PERSPECTIVES a search function that originated in China examines its tremendous growth in recent years 20 Microprocessor Scaling: and its uniquely rich online/offline interactions. What Limits Will Hold? Jacek Izydorczyk and Michael Izydorczyk RESEARCH FEATURES For 40 years, semiconductor technology has followed Moore’s law, but continuing that Real-World Distributed pattern will require a breakthrough in energy- 54 efficient design. Eventually the industry must Computing with Ibis also seek an entirely new paradigm, such as Henri E. Bal, Jason Maassen, Rob V. van creating reliable systems from unreliable Nieuwpoort, Niels Drost, Roelof Kemp, Timo components. van Kessel, Nick Palmer, Gosia Wrzesi n´ska, Thilo Kielmann, Kees van Reeuwijk, COVER FEATURES Frank J. Seinstra, Ceriel J.H. Jacobs, and Kees Verstoep 27 Social Multimedia Computing Ibis allows easy programming and deployment Yonghong Tian, Jaideep Srivastava, of compute-intensive distributed applications, Tiejun Huang, and Noshir Contractor even for dynamic, faulty, and heterogeneous The explosive growth of social multimedia environments. content on the Internet has led to a new research area, called social multimedia 63 Simulating the Universe computing. on an Intercontinental Grid Simon Portegies Zwart, Tomoaki Ishiyama, 37 Social-Networks Connect Derek Groen, Keigo Nitadori, Junichiro Services Makino, Cees de Laat, Stephen McMillan, Moo Nam Ko, Gorrell P. Cheek, Kei Hiraki, Stefan Harfst, and Paola Grosso Mohamed Shehab, and Ravi Sandhu The computational requirements of simulating Social-network connect services increase access a sector of the universe led an international to and enrich user data in the Social Web, but team of researchers to try concurrent they also present several security and privacy processing on two supercomputers half a challenges. world apart. For more information on computing topics, visit the Computer Society Digital Library at www.computer.org/csdl. A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS A Computer Previous Page | Contents | Zoom in | Zoom out | Front Cover | Search Issue | Next Page BEF MaGS Flagship Publication of the IEEE IEEE Computer Society: http://computer.org Computer:
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