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NOTE:The Center for Mobile Computing is now dormant, and this web site represents a historical view of its activities from 1996-2008. Although there is still mobile-computing research underway at Dartmouth, we no longer update the web site on a regular basis. Please contact Professor David Kotz with any inquiries about the CMC.


 
 
   
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June 2008

Congrats to new Ph.D. graduates!

Congratulations to Udayan Deshpande, Kimo Johnson, Zhengyi Le, Ming Li, Soumandra Nanda, Yi Ouyang, Anna Shubina, Libo Song, and Yurong Xu (alphabetically ordered by last names) for receiving their Ph.D.s on June 8th, 2008!


November 2007

Welcome Minho Shin, new postdoc at the Center for Mobile Computing

Minho Shin recently earned his Ph.D degree in Computer Science from the University of Maryland in November 2007. His graduate research focused on the performance and the security of wireless networks. He received a B.S. degree in Computer Science and Statistics from the Seoul National University, Korea, in 1998 and a M.S. degree in Computer Science from the University of Maryland at College Park in 2003. He joins us as a Post-Doctoral Research Fellow with David Kotz in the ISTS-sponsored MetroSense project.


October 2007

The CMC is launching a new research project: Data Assurance in Medical Sensor Applications.

We expect that wearable, portable, and even embeddable medical sensors will enable long-term continuous medical monitoring for many purposes, such as patients with chronic medical conditions (such as the recently announced blood-sugar sensors for diabetics), people seeking to change behavior (e.g., losing weight, or quitting smoking), or athletes wishing to monitor their condition and performance. The resulting data may be used directly by the person, or shared with others: with a physician for treatment, with an insurance company for coverage, or by a trainer or coach. Such systems have huge potential benefit to the quality of healthcare and quality of life for many people.

Since the sensor data may be gathered through a patient's mobile device (such as a mobile phone), a wireless network, and the Internet, there are many opportunities for the sensor data to be tampered or otherwise inaccurate. How can we assess confidence in sensor data? How can we present that level of confidence, in context, with the sensor data? This project will develop methods to assess confidence in medical sensor data.

Funded by Intel University Research Council.

People: David Kotz, and students TBD.


September 2007

Libo Song, grad student in CMC projects, departs for Bloomberg

All our best wishes to Dr. Libo Song, who defended his Ph.D thesis last month and days later started his new job at Bloomberg in NYC. Good luck, Libo!

Libo's dissertation will be added to the CMC web site once final revisions are complete, in a month or so. Below is the abstract of his dissertation: Evaluating Mobility Predictors in Wireless Networks

Handoff prediction in wireless networks has long been considered as a mechanism to improve the quality of service provided to mobile wireless usages. Most prior studies for the performance of prediction techniques, however, were based on theoretical analysis, simulation with synthetic mobility models, or small wireless network traces.

We tackle the problem by using traces collected at a large production wireless net-work to evaluate several major families of handoff-location prediction techniques (Markov, LZ-based, PPM and SPM predictors), a set of handoff-time predictors (Markov, Moving Average and CDF predictors), and a predictor that jointly predicts handoff location and time. We also propose a fallback mechanism, which uses a lower-order predictor whenever a higher-order predictor fail to predict.

We found that low-order Markov predictors, with our proposed fallback mechanisms, performed as well or better than the more complex and more space-consuming compression-based handoff-location predictors. Although our handoff-time predictor had modest prediction accuracy, in the context of mobile voice applications we found that bandwidth reservation strategies can benefit from the combined location and time handoff predictor for significantly reducing call-drop rate without significantly increasing the call-block rate.

We also developed a prediction-based routing protocol for mobile opportunistic net-works. We evaluated and compared our protocol's performance to five existing routing protocols, by simulations driven by real mobility traces. We found that the basic routing protocols are not practical for large-scale opportunistic networks. Prediction-based routing protocols trade off message delivery ratio against resource usage and performed well and comparable to each other.

Yong Sheng, postdoc in CMC projects, departs for Google

All our best wishes to Dr. Yong Sheng, who received his Ph.D under George Cybenko at the Thayer School of Engineering and then joined the CMC's MAP project for a year-long postdoctoral fellowship. Yong starts next month in the China division of Google, based in Seattle. We will all miss his cheerful disposition and his many contributions to research in the CMC lab. Good luck, Yong!


February 2007

Vijay Bhuse joins Metrosense project as postdoctoral fellow

Vijay received his B. Tech. in Computer Engineering from Dr Babasaheb Ambedkar Technological University, Lonere, India in 2000. He received his Ph. D. in Computer Science from Western Michigan University in 2007. He designed lightweight intrusion detection techniques for wireless sensor networks as part of his Ph. D. dissertation. He joined ISTS as a post-doctoral fellow in February 2007 and is working with Prof. David Kotz and Prof. Andrew Campbell.

He has 12 publications and 3 posters in the areas of intrusion detection for wireless sensor networks, localization, security and privacy. He was an honorable mention at a student research poster competition held at 7th Annual Information Security Symposium (by CERIAS at Purdue University). He was an honorable mention for an excellence in research award at the Department of Computer Science, Western Michigan University for two years 2004-2005 and 2005-2006.

He did internships at ABN Amro (Mumbai), Crompton Greaves (Mumbai) and Manatron (Portage, MI).

He is a member of UPE and served as a vice president of the local chapter at Western Michigan University in 2003-2004.


January 2007

CMC TEAM DEMONSTRATES "MAP" SYSTEM TO AIR FORCE, NAVY, and US Secret Service

At the invitation of the Air Force Information Operations Center, and coordinated by HSARPA in the Department of Homeland Security, the MAP team took their demo on their road. The MAP project - "Measure, Analyze, Protect" aims to detect and respond to attacks on a production Wi-Fi wireless network on an enterprise scale. Since the MAP system is currently deployed throughout Sudikoff Lab for Computer Science, involving 20 wireless access points and two rack-mounted servers, it was no easy feat to make the demo portable! In the end, six laptops, four access points, and countless cables and accessories were shipped to San Antonio and set up at the host site - the Southwest Research Institute. Key researchers from the Air Force Information Operations Center, and guests from the Naval Research Lab (in Washington DC) attended. This demo was possible because of the tireless efforts of Yong Sheng, Keren Tan, Bennet Vance, and Udayan Deshpande. In February the MAP team demonstrated MAP to the US Secret Service in Miami, Florida.


December 2006

Network World just ran the story about a CMC project

Researchers crafting intelligent, scalable WLAN defense. More about our project MAP: Measure, Analyze, Protect, security through measurement for wireless LANs.


October 2006

postdoc Minkyong Kim departs for IBM TJ Watson Research Center


September 2006

Yong Sheng joins MAP project as postdoctoral fellow

Dr. Yong Sheng, who just completed his Ph.D under George Cybenko in the PQS project, begins today as a postdoc in the MAP group. MAP is the "Measure, Analyze, Protect" project, funded by HSARPA, to build a scalable real-time intrusion-detection system for Wi-Fi networks. Yong brings deep mathematical skills and extensive intrusion-detection skills and will be working with the analysis team to develop new and more robust attack detectors.

Yong's thesis, entitled "The Theory of Trackability and Robustness for Process Detection," is available online at http://www.dartmouth.edu/~ysheng/thesis/ysthesis.web.pdf

postdoc Tristan Henderson departs for University of St Andrews in Scotland


August 2006

Post-Doctoral Opening


June 2006

CRAWDAD workshop September 25th, 2006

CALL FOR PARTICIPATION
CRAWDAD Workshop 2006
Community Resource for Archiving Wireless Data At Dartmouth
In Cooperation with ACM SIGMOBILE
http://crawdad.cs.dartmouth.edu/workshop2006
September 25th, 1:30pm-6:00pm
Co-located with MobiCom in Los Angeles, CA, USA

Palm donates hardware to Dartmouth's Center for Mobile Computing

Palm Computing, the leading vendor of personal digital assistants and smart phones, has donated a collection of Treo 650 smart phones and Tungsten E2 PDAs for use in our research and education projects. So far these have been used by software-design students to develop a mobile user-survey application for a local science museum, by a research student to explore secure interactions between PDAs and public kiosk computers, and by the PLACE project. We are grateful to Palm Computing for their generous donation.

Aruba donates hardware to Dartmouth's Center for Mobile Computing

Aruba Networks, a leading vendor of Wi-Fi networking equipment to enterprises around the world, donated several of their AP70-model access points to our wireless networking lab. These APs have immediately been useful for experimental work in security (MAP project) and for sensor-net- work experiments (PLACE project). These versatile APs have two radios and a USB port. We are grateful to Aruba Networks for their generous donation.


November 2005

Jihwang Yeo joins CRAWDAD team

Jihwang Yeo is a programmer and administrator for the CRAWDAD project, working with Professors David Kotz and Tristan Henderson. His current work is focused on providing the research community with a large wireless network resource archive, e.g., data sets and tools. He was a research assistant in the MIND (Maryland Information and Network Dynamics) lab at University of Maryland, where his primary contribution was the development of a wireless monitoring technique for the analysis and modeling of wireless traffic. His professional career also includes developing an XML/SOAP-database gateway when he worked at the IBM Almaden Research Center in summer 2001. He received a master's degree in Computer Science from University of Maryland, College Park MD. He also holds a bachelor's degree and another master's degree in Computer Engineering from Seoul National University in Korea.


October 2005

Apu Kapadia, new CMC Postdoc

Apu Kapadia received his PhD from the University of Illinois at Urbana-Champaign and was the recipient of a four-year High-Performance Computer Science Fellowship from the Department of Energy. His doctoral research focused on trustworthy communication and models for privacy in pervasive environments. In October 2005, Apu joined ISTS as a Post-Doctoral Research Fellow and is working with Profs. David Kotz and Sean Smith on topics related to location privacy, mobile computing, trust-worthy platforms, and public-key infrastructures.

postdoc Arnab Paul departs for Intel Corporation


September 2005

CRAWDAD Workshop 2005 held at Mobicom

September 1, 2005


August 2005

New PhD Openings

Auguest 11,2005


July 2005

Bennet Vance joins MAP team

Bennet Vance was a public school student in Hanover when computing arrived at Dartmouth in the 1960s. Bennet soon acquired the habit of heading over to the computation center after school to try out his latest BASIC programs. His subsequent career as a software developer has included stints at AT&T Bell Laboratories in New Jersey; at True BASIC, the compiler company co-founded by Dartmouth computing pioneers John Kemeny and Thomas Kurtz; and at the IBM Almaden Research Center in Silicon Valley, where he helped extend IBM's DB2 database system. Returning to Hanover in 2001, Bennet worked in Dartmouth's Department of Psychological and Brain Sciences before taking his current position with the CMC. He holds a bachelor's degree in math from Yale and graduate degrees in computer science from Stanford and from the OGI School of Science & Engineering.

CRAWDAD:

July 2, 2005

The CMC just launched a major new effort at Dartmouth College, a Community Resource for Archiving Wireless Data at Dartmouth (CRAWDAD).

NSF has funded this effort to build a community resource, an archive with the capacity to store wireless trace data from many contributing locations, with the staff to develop better tools for collecting, anonymizing, and analyzing the data. This Community Resource for Archiving Wireless Data At Dartmouth, CRAWDAD, will work with community leaders to ensure that the archive meets the needs of the research community, work with the other leading centers that develop network tracing tools and metadata, and work with research organizations and corporations to ensure continuing support for the archive after NSF's funding ends.

Andrew Campbell joins Dartmouth, CMC

July 2, 2005

photo After several years on the faculty at Columbia University, Andrew Campbell is moving to Dartmouth College as an Associate Professor of Computer Science. Andrew brings to the CMC his long track record in mobile computing and wireless networking, and looks forward to working with CMC faculty and students on a variety of new projects.

Andrew is investigating the synthesis between the demands of highly dynamic systems (e.g., mobile and wireless systems), the need to embed better service creation engines into the network infrastructure, and the development of quantitative and scalable resource provisioning models for such environments. His work tends to connect the theoretical with the practical, architecting new networking systems that contribute to the development of the wireless Internet. In his research on QoS (quality of service), he developed a new approach to delivering service differentiation based in wireless networks based on economic theory supporting the notion of incentive engineering in wireless packet networks. And, in the area of programmable networks, Andrew has designed, developed and implemented one of the first programmable mobile networking platforms (Mobiware) with an emphasis on service creation in wireless networks.

One of Andrew's current projects is Armstrong, which is focused on resilient transport and control mechanisms for sensor networks. This project is developing new technologies for wireless sensor and ad hoc networks. This project is developing a new congestion control framework for wireless sensor networks, a new reliable transport protocol for wireless sensor networks, and a new routing scheme for wireless ad hoc networks that is based on dynamic variable transmission range power control.

Andrew is perhaps best known for his work on Cellular IP, which provided an alternative approach to that found in mobile telecommunications (e.g., General Packet Radio Service) and in IP networking (Mobile IP). Cellular IP represents a new mobile host protocol that is optimized to provide access to a Mobile IP enabled Internet in support of fast-moving wireless hosts. Cellular IP incorporates a number of important cellular principles but remains firmly based on IP design principles allowing Cellular IP to scale from pico- to metropolitan-area installations.

Andrew received a prestigious NSF CAREER award in 1999, and his other research grants come from a wide variety of federal and corporate sources.

Andrew has extensively served our scientific community through conference program committees and journal editorial boards. Most recently he was program co-chair for ACM MobiHoc 2005.

The CMC is pleased to have Andrew on the team.

MAP: Measure, Analyze, Protect: Security through measurement for Wireless LANs.

July 2, 2005

With the rise of Voice over wireless LAN (VoWLAN), any complete WiFi security solution must address denial of service attacks, such as kicking off other clients, consuming excessive bandwidth, or spoofing access points, to the detriment of legitimate clients. Even authorized clients may be able to sufficiently disrupt service quality to make the network ineffective for legitimate clients. Our approach provides a new foundation for wireless network security, able to dynamically measure, analyze and protect a WiFi network against existing and novel threats, including rogue clients and access points, with a focus on VoWLAN use cases. Our goal is to support thousands of APs and clients, quickly recognize most new attacks, and generate few false alarms.

funded by HSARPA


June 2005

Post-Doctoral RESEARCH FELLOW POSITION in SOCIOLOGY AVAILABLE
(PDF format)


May 2005

ISTS/CMC postdoctoral fellowships available


February 2005

Arnab Paul joins the CMC

photo Arnab Paul

Arnab Paul is a post-doctoral research associate, working with Prof. David Kotz. His broad research interests lie in mobile and distributed systems. He is investigating various issues arising at the intersection of robustness and security in such systems. He recently finished his PhD from the College of Computing, Georgia Tech, where he worked on various including distributed storage, authentication protocols for wireless systems, cluster computing and distributed programming. His current work is focused on secure and fault tolerant sensor networks.


October 2004

Minkyong Kim joins the CMC

photo Minkyong Kim

Minkyong Kim is currently working as a post-doc with Professor David Kotz. Her research interests include wireless networks, mobile computing, and distributed systems. For her Ph.D. degree, she worked on designing a file system for mobile clients and estimating network capacity for adaptive systems. She received her Ph.D. in Computer Science & Engineering from the University of Michigan. She got her B.S. and M.S. in Computer Engineering from Seoul National University.


Spring 2004

New Scientist Article: Dartmouth Builds Virtual Fences To Herd Wi-Fi Cattle!

June 7, 2004

Virtual, moving fences controlled from a laptop could one day herd cattle to fresh fields for grazing, a Dartmouth roboticist told the MobiSys 2004 conference in Boston, Massachusetts, on Sunday. A farmer would control multiple herds from a single server at home as if they were playing a video game, said Zack Butler, of Dartmouth College in Hanover, New Hampshire.Although static virtual fences already keep dogs inside yards in affluent US neighbourhoods, no-one has attempted a moving virtual fence before, nor attempted to apply the idea to large herds of animals. "Basically we download the fences to the cows," says Butler. "We say: 'Today stay here, tomorrow go somewhere else. Butler and his colleagues have written software that transmits the chosen GPS co-ordinates of a virtual fence to head-collars worn by the cows in the field. The entire article can be found here.

Dartmouth Wins the 2004 EDUCAUSE Award for Excellence in Networking

June 2, 2004


Dartmouth College recently won the 2004 EDUCAUSE Excellence in Networking award based on our wireless network. A representative of the college will be making a presentation about our wireless network at the EDUCAUSE national conference (19-22 October, reception 19 October, presentation on 21 October, Denver). The awards committee was especially struck that in addition to having a robust and pervasive wireless network for so long, we were also making innovative use of it in teaching, and in research that involved students and that inspired a variety of student projects (tools, applications, services), research or otherwise.


Fall 2003

CMC's Brad Noblet named to the Top 50 Most Powerful People in Networking

December 22, 2003

Network World Fusion magazine has named Brad as 44th on the list of most powerful and influential individuals in networking. Brad's name appears on a list which includes many illustrious CEOs and industry leaders such as Steve Ballmer, John Chambers, Bill Gates and Michael Dell. The entire list can be viewed here. Network World Fusion had also run an article on the Dartmouth Network earlier in November.

Cisco Provides Funds For Greenpass Project

November 13, 2003

Congratulations to Sean Smith and his PKI team for receiving a $100,000 cash donation from Cisco Systems to launch the Greenpass project in the Center for Mobile Computing and the PKI lab. This is the largest corporate grant yet to the CMC.

The goal of the Greenpass project is to apply PKI technology to the challenge of authenticating users of WiFi wireless networks, and specifically make it to make it possible to allow users to delegate limited network access to visitors. With Greenpass, we would be able to close Dartmouth's WiFi networks from the drive-by spam artists and yet easily grant full network access to a visiting colleague. There is significant corporate interest in finding a solution to the "guest access" problem that is secure, easy to use, cross plastform, and based on widely adopted standards.

Publc Radio: "Dartmouth tries Voice Over IP on Campus Phones"

November 21, 2003

WBUR (Boston NPR radio station) ran a 5-minute story on Dartmouth VoIP on wireless. A real audio version of the story is available here.

TeleSym SymPhone System Chosen For Campus Wide Use At Dartmouth

October 09, 2003

TeleSym, Inc. announced that its SymPhone System software for voice calling on wireless networks has been selected for campus-wide use at Dartmouth College, Hanover, NH. The announcement coincides with the opening of the college's conference titled Unleashed: The Summit on Wireless and Mobile Computing.

SymPhone adds cordless-phone capability to mobile computers. Under the Dartmouth contract, TeleSym will be supporting thousands of users on one of the world's largest wireless IP telephony installations, expected to eventually serve a community of 13,000 students, faculty and staff.

Dartmouth has been the scene of many 'firsts' in organizational computing, as the first Ivy League institution to be fully wired, then fully wireless. By year-end, it will also be the first college to fully deploy voice-over-IP (VoIP) on its wireless networks. When you call from computer to computer, the quality can be indistinguishable from wired phones and noticeably better than cell phones.

More information can be found at this page.

Unleashed: The Summit on Wireless and Mobile Computing

October 8-10, 2003: "You've got questions - and answers. Join your peers in academia, industry, and the public sector to consider the impact of the global 802.11 wireless revolution on your organization."

The CMC joins with Intel and Cisco to present a workshop to help leaders understand and plan for wireless networking.

September 2003

Dartmouth gives Free Nationwide Long Distance Calling to Students

Dartmouth gives free VoIP software to all students, free local and domestic long-distance calling, and they can all be used on the campus WiFi network. There has been a lot of interest in this in the media with many hailing it as the next wave of the future and others considering adopting similar systems.

August 2003

Brad Noblet joins the CMC

Brad Noblet, Director of Computing Techinical ServiceS, is the seventh and newest member to join the CMC team. Brad, a veteran computer industry manager, will be Dartmouth's new director of computing technical services, with responsibility for Dartmouth's data,telephone and cable TV networks, central machine room operations and software development. A 1982 graduate of Indiana University at Bloomington in computer science, Brad was that school's manager of data communications, with responsibility for the institution's statewide data network. He then left for private industry, working in product development for a number of hardware manufacturers. At Ungerman-Bass,Brad served as director of engineering and general manager overseeing development of the world's first smart hub -- a device that allows computers to share a single network connection.

As vice president of product development at Cayman Systems, Brad led efforts to move that firm away from its dependence on Apple products. He was soon promoted to president by the Cayman board in order to continue the move away from dependency on Apple. He joined Wellfleet, a predecessor of Bay Networks, in 1995 to manage its router products division -- delivering 40 percent of Bay's profit and $600 million in annual revenue. Since leaving Bay Networks in 1998, Brad has been involved in a number of start-up ventures. Brad has responsibility for the campus data, telephone and cable TV networks; the operations of the central computer facility in Berry Library; and the software development group.

Prof. Sean Smith joins the CMC

Sean Smith, Assistant Professor of Computer Science, is now one of six faculty associated with the CMC. His work increasingly addresses the authorization and authentication issues involved with wireless networks and mobile computing.

Sean has been working in information security---attacks and defenses, for industry and government---for over a decade. In graduate school, he worked with the US Postal Inspection Service on postal meter fraud; as a post-doc and staff member at Los Alamos National Laboratory, he performed security reviews, designs, analyses, and briefings for a wide variety of public-sector clients; at IBM T.J. Watson Research Center, he designed the security architecture for (and helped code and test) the IBM 4758 secure coprocessor, and then led the formal modeling and verification work that earned it the world's first FIPS 140-1 Level 4 security validation. Dr. Smith has published numerous refereed papers; given numerous invited talks; and been granted nine patents. His security architecture is used in thousands of financial, e-commerce, and rights managements installations world-wide.

In July 2000, Sean left IBM for Dartmouth since he was convinced that the academic education and research environment is a better venue for changing the world. His current work, as PI of the Dartmouth PKI Lab, investigates how to build trustable systems in the real world.

Sean was educated at Princeton (B.A., Mathematics) and CMU (M.S., Ph.D., Computer Science).

July 2003

Intel joins the CMC

Intel became the latest partner of the CMC, primarily through the research labs in Hillsboro, Oregon. (To learn more about CMC partnership, click here.)

Cisco awards research grant for VoIP

Cisco's University Research Program donated equipment and financial support to CMC researchers David Kotz and Brad Noblet so that they may be able to study the effect of VoIP on our wireless network.

May 2003

Making Markets - An Intel Perspective

photo Les Vadasz, Executive Vice President of Intel Corporation, and President of Intel Capital, spoke on campus on May 16, 2003.

Mr. Vadasz is the #3 employee at Intel. He was visiting Dartmouth and Tuck to review the College's research and development efforts in mobile computing. Intel Capital has been one of the most active strategic technology investors worldwide during the past several years.

Mr. Vadasz's visit was sponsored by: the Center for Mobile Computing, the Dartmouth Entrepreneurial Network, the Department of Computer Science, the Foster Center for Private Equity, the Tuck School of Business, and the Thayer School of Engineering.

April 2003

Wireless network presents location-dependent opportunities

[full story]

April 14, 2003 - Imagine a student entering a research lab and immediately receiving information on his or her laptop about current projects or equipment and safety updates. Or think about a professor keeping tabs on a reference book that a group of students keeps misplacing. These personalized services, which change depending on their location, are now being developed and tested on Dartmouth's wireless campus.


November 2002

Discovery Channel

Discovery Channel Canada broadcast a three-part story about the campus wireless network: one, two, three [be sure to click the image to see the video]

New project descriptions

Sensor networks, tracking stolen wireless devices, and off-campus wireless repeaters...


September 2002

Professor Daniela Rus wins MacArthur Fellowship

The MacArthur Fellows Program awards unrestricted fellowships to talented individuals who have shown extraordinary originality and dedication in their creative pursuits and a marked capacity for self-direction. There are three criteria for selection of Fellows: exceptional creativity, promise for important future advances based on a track record of significant accomplishment, and potential for the fellowship to facilitate subsequent creative work.

Dartmouth's press release.

CMC work featured in Wired Magazine

In a feature story, the October 2002 issue explores
Unplugged U., that is, Dartmouth College. Our research on wireless campus usage mentioned several times.


June 2002

Ayorkor Mills-Tettey wins best student paper award!

photo Ayorkor Mills-Tettey and Prof. David Kotz won the best student paper award at the 21st IEEE International Performance, Computing, and Communications Conference for their paper entitled "Mobile Voice Over IP (MVOIP): An Application-level Protocol for Call Hand-off in Real Time Applications".

Recent graduates

Several students graduated, or passed their Ph.D thesis proposal, this spring.
Kobby Essien A.B. headed for UPenn.

photo Kobby helped to deploy all of the hardware and software necessary to trace the activity of the wireless network over the fall term, and then to write the software necessary to crunch the data. He went on to complete a senior thesis in computational biology, and Fall 2002 he begins a Ph.D program in bioengineering at the University of Pennsylvania.

Chris Masone, A.B. headed for CS Ph.D program at Dartmouth.

photo Chris was awarded High Honors for his work in the Solar project, in which he developed a small language and run-time system that can define "roles" in terms of the changing context. A role is a set of users who should be granted certain access rights associated with that role. For example, one might define a role called "room213" whose membership should be defined to be any user currently located in room 213. Then services, such as the projector, the room lights, and the sound system, might grant access only to users in role "room213".

Kazuhiro Minami, Ph.D candidate.

photo Kazuhiro Minami presented his thesis proposal this spring. His research will focus on the security and privacy issues related to our Solar system for context-aware mobile computing. He will solve two problems: first, controlling access to context information produced by sensors and other information sources, which is critical to protect the privacy of people who are being monitored. Second, using context information to make decisions about access to other services in the environment.

Abe White, A.B., founder of SolarMetric

photo Abe was awarded High Honors for his work in the Solar project, in which he studied the fundamental performance of Solar's event-distribution mechanism, and added an extensible framework to allow events to be distributed in a variety of formats, particularly XML. Abe has founded his own company to develop and market his Java persistence software tools.

News from 2000-01...


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