thelink. The <strong>Link</strong> provides a mosaic of the School of Computer Science: presenting issues, analyzing problems, offering occasional answers, giving exposure to faculty, students, researchers, staff and interdisciplinary partners. The <strong>Link</strong> strives to encourage better understanding of, and involvement in, the computer science community. editor-in-chief Randal E. Bryant editor Jason Togyer contributing Writers Tina Carr, Ken Chiacchia, Mark Dorgan, Meghan Holohan, Mary Lynn Mack, Linda K. Schmitmeyer, Byron Spice photography Ken Andreyo and Tim Kaulen, Carnegie Mellon University (pp. 1, 2, 16 and 37), John W. Barna (p. 14), Jason Dorfman, CSAIL/MIT (p. 33), National Robotics Engineering Center (p. 34, bottom), SURTRAC (both, p. 5), Tartan Rescue Team (p. 34, top) and University of Pennsylvania Archives (p. 38). Other images courtesy John Anderson (p. 35, top), Justin Cranshaw (p. 35, bottom right), Alon Lavie (p. 8), Gary L. Miller (p. 36), Agha Ali Raza (p. 25), Julian Shun (p. 35, bottom left), Pradeep Sindhu (p. 30), Séan Slattery (p. 32), Stefanie Tomko (p. 31) and Daniel H. Wilson (p. 13). graphic design Communications Design & Photography Group office of the dean Gates Center 5113 Carnegie Mellon University 5000 Forbes Avenue Pittsburgh, PA 15213 randal e. bryant, dean tina carr (HNZ’02), director of alumni relations philip l. lehman (CS’78,’84), associate dean for strategic initiatives byron spice, director of media relations Jason togyer (DC’96), editor Phone: 412-268-8721 Email: The<strong>Link</strong>@cs.cmu.edu Web: link.cs.cmu.edu Facebook: facebook.com/SCSatCMU Twitter: twitter.com/SCSatCMU Carnegie Mellon University does not discriminate in admission, employment, or administration of its programs or activities on the basis of race, color, national origin, sex, handicap or disability, age, sexual orientation, gender identity, religion, creed, ancestry, belief, veteran status, or genetic information. Furthermore, Carnegie Mellon University does not discriminate and is <strong>required</strong> not to discriminate in violation of federal, state, or local laws or executive orders. Inquiries concerning the application of and compliance with this statement should be directed to the vice president for campus affairs, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, telephone 412-268-2056. Obtain general information about Carnegie Mellon University by calling 412-268-2000. Produced for the School of Computer Science by the Communications Design & Photography Group, April, 2013, 13-328. ©2013 Carnegie Mellon University, all rights reserved. No part of this publication may be reproduced in any form without written permission from the Office of the Dean, School of Computer Science. 2
contents 2 dean’s message 3 on campus 14 in the loop 16 cover story 25 research notebook 29 alumni 35 scs news in brief 39 screenshot 40 then and <strong>now</strong> 41 calendar of events on the cover Cover illustration by Jordan Bush; photography by Tim Kaulen the link. 1