Next Thursday at UW CSE or view remotely:

Computer Science and Engineering

SPEAKER:   David Kotz, Dartmouth College

TITLE:     Amulet: An Energy-Efficient, Multi-Application Wearable

DATE:      Thursday, December 1, 2016
TIME:      3:30pm
PLACE:     EEB-105
HOST:      Tadayoshi Kohno

Wearable technology enables a range of exciting new applications in
health, commerce, and beyond. For many important applications, wearables
must have battery life measured in weeks or months, not hours and days as
in most current devices. Our vision of wearable platforms aims for long
battery life but with the flexibility and security to support multiple
applications. To achieve long battery life with a workload comprising apps
from multiple developers, these platforms must have robust mechanisms for
app isolation and developer tools for optimizing resource usage.

We introduce the Amulet Platform for constrained wearable devices, which
includes an ultra-low-power hardware architecture and a companion software
framework, including a highly efficient event-driven programming model,
low-power operating system, and developer tools for profiling
ultra-low-power applications at compile time. We present the design and
evaluation of our prototype Amulet hardware and software, and show how the
framework enables developers to write energy-efficient applications. Our
prototype has battery lifetime lasting weeks or even months, depending on
the application, and our interactive resource-profiling tool predicts
battery lifetime within 6-10% of the measured lifetime.

(Featured image: Seattle photo from University of Washington web site at

David Kotz is the Champion International Professor in the Department of
Computer Science at Dartmouth College. He served as Associate Dean of the
Faculty for the Sciences for six years and as the Executive Director of
the Institute for Security Technology Studies for four years. In 2013 he
was appointed to the US Healthcare IT Policy Committee. His research
interests include security and privacy, pervasive computing for
healthcare, and wireless networks.  He has published over 100 refereed
journal and conference papers and obtained over $65m in grant funding.  He
is PI of a $10m grant from the NSF Secure and Trustworthy Cyberspace
program and leads a five-university team investigating Trustworthy Health
& Wellness technology (see He is an IEEE Fellow, a Senior
Member of the ACM, a 2008 Fulbright Fellow to India, and an elected member
of Phi Beta Kappa.
After receiving his A.B. in Computer Science and Physics from Dartmouth in
1986, he completed his Ph.D in Computer Science from Duke University in
1991 and returned to Dartmouth to join the faculty. For more information

Refreshments to be served in room prior to talk.

*NOTE* This lecture will be broadcast live via the Internet. See for more information.

By EdwardM