|
| Ruzena Bajcsy |
Advances in technology have
led to development of various sensing, computing and communication devices
that can be woven into the physical environment of our daily lives. Such
systems enable on-body and mobile health-care monitoring, can integrate
information from different sources, and can initiate actions or trigger
alarms when needed. In this talk, we describe a collaborative signal processing
scheme for physical movement monitoring with motion sensors. The signal
processing consists of preprocessing, feature extraction and classification.
We define a measure on feature “significance” as well as features’
correlations. We characterize a graph model for collaborative signal processing
based on the aforementioned measures, and illustrate how this model can
be utilized to efficiently synthesize computation and communication for
highly resource constrained wearable and mobile systems.
|
| Terry Benzel |
The first
talk will be on: The Cyber Defense Technology Experimental
Research Network (DETER).
Suggested readings
beforehand are:
1) Expeience with DETER:
A Testbed for Security Rsearch (pdf)
2) An
Integrated Experimental Environmentfor Distributed Systems and Networks
(pdf)
The second talk will be on:
21st Century Project Management.
Suggested readings
beforehand are:
1) Managing Emergent Work: Revisiting
Jazz Lessons (pdf)
2) Radical
Innovation without Collocation (pdf)
3) National
Science Foundation Facility Plan (pdf)
|
| Deborah Estrin |
| Morning talk: “Wireless Sensing Systems:
From ecosystems to human systems”, Deborah Estrin
Miniaturization and Moore’s law has enabled us to combine sensing,
computation and wireless communication in integrated, low-power devices,
and to embed networks of these devices in the physical world. By placing
sensing devices up close to the physical phenomena we are now able to
study details in space and time that were previously unobservable. Across
a wide array of applications, the ability to observe physical processes
with such high fidelity will allow domain experts to create models, make
predictions, and manage critical resources. Looking back over the past
few years we have made significant progress toward the vision of programmable,
multi-modal, multi-scale, and multi-use observatories. We have made our
greatest strides in these applications using multiscale data and models
as context for the in situ measurements, and in network processing and
mobility to achieve scalability (in terms of communication, energy, latency
and coverage). We found that moving a sensor through a space is the only
way to actually achieve dense sensing. And in network processing was needed
because by processing data near the sensor source we not only make systems
last longer (by conserving communication energy), but make the systems
more reactive and interactive so other elements in the systems (including
humans) can adapt to the varying physical observations of the system.
Please download these articles: Estrin
Articel 1 and Estrin Article 2
Afternoon talk: "Participatory Urban Sensing", Deborah
Estrin
We are applying embedded sensing to human as well as natural systems,
in particular by exploring use of the installed base of image and acoustic
sensors that we all carry around in our pockets or on our belts—mobile
phones. We see these applications as going well beyond the intentional
conversations and postings supported by sites such as Flikr and lifeblog
to automated, programmable, and adaptive collection of both physical and
social parameters at the personal and community level. There are important
overlapping themes with environmental science applications, most critically
the crucial importance of processing of data close to the source so as
to address the varied but persistent needs of individuals to selective
share these direct observations of their lives and spaces. Moreover, we
see the continued importance of mobility to achieve coverage, and the
challenge of verifiable location tagging in the context of mobility.
There are also two papers attached. RWS-Overview-Estrin-Final.pdf
is general for the first talk, the 2nd, Mobiscope-Final.pdf is related
to the 2nd talk.
|
| Stephanie
Forrest |
1. Title: Biologically
Based Approaches to Computer Security
Our software infrastructure confronts a situation increasingly similar
to the challenges faced by living organisms in a biological ecosystem.
Highly dynamic, complex, and hostile environments are placing new demands
on our computational infrastructure. Biological design principles can
potentially change the way we engineer, maintain, and evolve large dynamic
software infrastructures. Examples of such principles include: adaptability,
homeostasis, redundancy, and diversity.
The talk will illustrate how
biological design principles are providing new insights and approaches
in the field of computer security and privacy. The talk will describe
results in intrusion detection, automated diversity and privacy-enhancing
data representations.
2. Technological Networks:
From Empirical Laws to Theory
Technological networks are essential to modern society, and the security
of these networks depends in large part on their connectivity and dynamics.
How do these properties scale with network size? Are there general principles
underlying the growth and structure of technological networks? If such
organizing principles exist, what do they tell us about security, efficiency,
and stability as the networks grow? The talk explores these questions
in the context of three example computational networks: Social networks
on the Internet, the Border Gateway Protocol, and clock tree networks
on computer chips.
|
| Jennifer
Hou |
A Personal Assistant
System for Helping Elder People with Their Assisted Living
PAS: A Wireless-enabled Personal Assistance System for Independent Living
The aging of baby boomers is creating social and economic challenges.
In the United States alone, the number of people over age 65 is expected
to hit 70 million by 2030, doubling from 35 million in 2000. As the population
ages there will be an increasing demand on health care resources, e.g.,
expenditures in the United States for health-care will grow to 15.9% of
the GDP ($2.6 trillion) by 2010 (Digital 4Sight's Healthcare Industry
Study). The ability of the current system to shift the burden of care
to family members will become increasingly limited as a result of the
decrease in birth rate and the increasing number of adults surviving to
old age without living children. Innovative strategies will be needed
to avoid the impending crisis.
Fortunately advances in sensing,
event monitoring, wireless communications technologies make possible the
unobtrusive supervision of basic needs of frail elderly and thereby replicate
services of on-site health care providers and family members. Supported
in part by National Science Foundation and Motorola Research, we have
been in the process of designing, developing, and deploying a wireless-based
software infrastructure, called Personal assistance system (PAS), with
sensing, localization, monitoring, wireless communication, and event/data
management that facilitates preservation of independence and quality of
life of frail elderly. It is postulated that by providing real-time interaction
between elderly people and remote care providers, PAS can delay their
transfers to skilled nursing facilities and improve the quality of their
lives (by preserving independence).
In this talk, we give an overview
on how PAS exploits inexpensive, “off the shelf” technologies
to assist elderly people to maintain the capability of independent living
through time-based reminders of daily activities, non-intrusive monitoring
of physiological functions and mobility profiles, and real-time communications
with remote care providers and clinicians. In particular, we discuss how
we establish in PAS a network of small, low-power devices that integrates
sensors and bluetooth-enabled medical devices, how we equipped PAS with
the capability of tracking in real-time (in addition to locating) humans
and objects, and how we enhance the robustness and ubiquity of PAS by
exploring use of cell phones as both the wireless modem and the local
intelligence for data aggregation and acquisition. We also highlight the
security, privacy, trust, reliability, and user-friendliness issues in
the context of independent living. Finally, we present our findings in
the pilot study carried out (in collaboration with Geriatricians at Washington
University in Saint Louis) in Nazareth Living Center for Assisted Living,
with respect to the effectiveness of PAS and the acceptance level of elder
people towards the use of technologies.
Suggested readings
beforehand are:
1) Personal Assistance System (pdf)
2) WISE PowerPoint Slides (ppt)
|
| Jennifer
King |
|
As new technologies are adopted
by federal and state governments, the process by which decisions regarding
appropriateness are made and reviewed by members of the public as well
as the research community are not always optimal. The recent adoption
of the RF-enabled e-Passport by the US Department of State offers an object
lesson in the risks to the public when technology is introduced without
an adequate technical assessment of the risks and benefits. This case
study highlights the need for academics and other technology experts to
stay abreast of public policy developments and to participate in the process
of shaping public policy.
Jenn's
slides in PDF format.
Reading materials:
M. Meingast, J. King, and D. Mulligan. Embedded RFID and Everyday Things:
A Case Study of the Security and Privacy Risks of the U.S. e-Passport.
In Proceedings of IEEE International Conference on RFID, March 2007.
http://www.law.berkeley.edu/clinics/samuelson/projects_papers/Meingast_King_Mulligan_RFID_2007.pdf
Federal Register,
Vol. 70, No. 33
http://www.law.berkeley.edu/clinics/samuelson/projects_papers/2005sp_electronic_passports_notice.pdf
Federal Register,
Vol. 70, No. 205.
http://a257.g.akamaitech.net/7/257/2422/01jan20051800/edocket.access.gpo.gov/2005/pdf/05-21284.pdf
|
| Deirdre Mulligan |
In Defense of Public
Places: New Perspectives on Visual Privacy in the 21st Century
Worldwide demand for security cameras has expanded greatly since 9/11/2001
and the London transport bombings. Over the same period, consumer demand
for high resolution digital and cell-phone cameras has increased markedly.
Video applications are being incorporated into learning, healthcare, family
and work environments. Engineers are responding with new generations of
highly sophisticated chips, lenses, robotic platforms, and systems.
In a rapidly evolving environment of unblinking eyes, technologically
perfected recollections, and permanent visual records, what will it mean
to have privacy? How will the introduction of unblinking eyes alter how
we experience and behave in public and private spaces?
Camera and video technology are changing who we watch, what we watch,
when we are watched, and redefining the purposes for which we watch. From
crime and terrorism focused networks of security cameras, to human rights
workers and demonstration observers armed with video cameras, to the proliferation
of camera and video phones used to capture and some times share the mundane
and extraordinary images presented by daily life, to real-time video connections
between family, employers and colleagues, technologies of watching are
generating complex questions about both our rights to document and enhance
our lived experiences and our rights to enjoy some aspects of privacy
in public places. Video and still footage of events such as the NYC protests
during the republican convention, the prisoner abuse at Abu Ghraib, images
of the war remind us of the powerful tonic visual images can be - providing
checks on the abuse and misuse of authority, forcing us to reckon with
the consequences of monumental decisions and policy choices, and providing
alternative versions of the "truth." But for some the use of
visual imaging technology by individuals in public places evokes a different
set of images-the "up-skirt photographer," the publication of
intimate moments occurring in public places, the paparazzi-and concerns-privacy,
exploitation, and voyeurism. State use of advanced camera networks to
constantly monitor public space counterpoises our deep desire for safety
and our commitment to a free and open society that demands some limits
on state access to information about citizens' activities. Monitoring
aging family members and domestic workers, and connecting educational
and work environments raise complicated questions about the privacy of
all those who pass through these visually wired environments. Across each
dimension visual imaging technology is outpacing law and public policy,
destabilizing norms and expectations of personal privacy, and redefining
public spaces.
Surveillance and sousveillance (watching from underneath) are becoming
ubiquitous: we are watched by the government, corporations, institutions,
and private individuals. Individuals use cameras to record events, document
experiences, and capture "the moment." Governments are deploying
them as both a counter-terrorism and crime-fighting tool. Businesses both
use and prohibit them -- finding them useful to protect property, but
a threat to intellectual property. The increasingly powerful pan, scan
and zoom features, infrared /night vision and video capabilities as well
as new developments in miniaturization and the embedding of cameras in
small multi-use consumer electronic devices, enable camera users to capture
intimate moments and communication details. The potential to meld biometric
and data-mining technology with vast networks of video cameras conjures
simultaneous fears of constant supervision, secret or public judgment
and hopes that such information can be used to make us safer, better informed,
and more connected to each other.
As we willingly or unwillingly submit to these invasions, we turn cameras
back at our watchers, and we sometimes actively choose to display our
images: publicizing our private lives through web cameras, photo blogs
and other technologies. Video technology will join voice communication
and email as a means of maintaining connection between families, communities,
and workplaces. In this constantly changing environment of unblinking
eyes, technologically perfected recollections, and permanent records,
what will it mean to have privacy? And how we will experience and behave
in public spaces? What degree of visual scrutiny are we willing to undergo
in public spaces? What degree of privacy - absence from watching, fading
of memory, anonymity - does a civil society require? What barriers does
the law erect to surveillance and sousveillance in public places? What
is the effect of pervasive watching on speech, conflict, and relations
between the governed and the government? How does pervasive watching entrench
or alter experiences based on gender, class and race? Can pervasively
watched spaces fulfill
their role as "public spaces?" How are current developments
in and uses of technology challenging our norms and laws and how have
policymakers responded?
Suggested readings
beforehand are:
1) Testimony to PIAB (in PDF)
2) William Rehnquist, Is An Expanded Right of Privacy Consistent With
Fair and Effective Law Enforcement? Or: Privacy You’ve Come a Long
Way, Baby, 31 KAN. L. REV. 1, 23.
3) H. Nissenbaum, "Protecting Privacy in an Information Age: The
Problem of Privacy in Public," (pdf) Law and Philosophy, 17: 559-596,
1998
|
| Maryanne McCormick |
| Demand Response
Energy Systems -- privacy, security, technology and policy
In the wake of the California energy crisis of 2000-2001, the California
Energy Commission (CEC) and California Public Utilities Commission (CPUC)
are aggressively pursuing “demand response” (DR) energy programs
aimed at reducing peak energy demand. Demand response systems convey information
about market conditions through pricing or reliability signals to customers,
who in turn, hopefully, alter their electricity consumption choices. In
particular DR programs are aimed at shifting the time at which customers
use energy through the implementation of time-varying tariffs. Armed with
information about the time-varying cost of electricity residential and
commercial customers are expected to reduce energy usage and/or shift
their usage to non-peak, less costly, hours. Such shifts, even absent
reductions in overall consumption, will hopefully reduce the likelihood
of energy brown and black outs and provide direct savings to consumers.
Technologies to enable the demand response system, including advanced
metering research and development [OpenAMI] and sensor and control technologies
development [DRETD], are under development. These technologies will be
coupled with acommunication and network infrastructure that supports the
multicast of real-time pricing information, and the aggregation of energy
usage and billing information.
A core component of the demand response system is the collection of information
about energy consumption from residential and commercial buildings at
frequent intervals. The analog electric meters prevalent today are unsophisticated
instruments that allow a meter reader to assess electricity use during
the time interval between meter readings. The meters found in basements
and on exterior walls, are typically read once a month by an employee
of the utility who visits on foot.
Over the next years these
meters may be replaced by digital meters that collect data at frequent
intervals, store it for many days, and transmit it wirelessly to the utility.
Meters likely to be installed are expected to contain a data collection
module that will enable hourly readings and wireless transmittal of these
readings to the utilities. Advanced metering installations may be capable
of greater internal processing and have enhanced data storage capability.
These meters are expected to collect data on electricity consumption at
intervals ranging from one hour down to fifteen minutes. There is little
agreement on how often meter readings will be sent to the utility or the
intermediate nodes (concentrators) within the neighborhood, and the period
for which readings will be retained in the meter, the nodes or the utility.
The meters will collect and send a data set including a unique meter identifier,
timestamp, usage data and some form of time synchronization information.
The data is expected to be in a proprietary format unique to the individual
manufacturer or utility, although some participants are looking forward
to the availability of open standards and architecture for meters.
The changes in the frequency, format, contents, storage and transmission
of data about electricity consumption that are integral to the planned
demand response infrastructure raise interesting questions about the ongoing
viability of maintaining, as a technical, practical and legal matter,
the privacy of activities occurring within the home. How will the system
architecture and business models address the increased sensitivity of
meter readings? For example, imagine a future “wardriving”
incident where wardrivers detect and monitor the unencrypted traffic between
household meters and neighborhood level concentrators that relay energy
usage information to the utilities. Monitoring such communications could
provide information about occupancy on a per house, block, or neighborhood
level. Armed with such information a criminal could relatively easily
assess the best time to burglarize homes or engage in other property crimes
in a neighborhood. How will the business models of utilities evolve to
take advantage of the more detailed information that can be gleaned from
energy consumption data taken at fifteen-minute intervals? How will the
increased information about in-home activities generated, transmitted
and stored in DR systems be dealt with under the Fourth Amendment to the
US Constitution?
Reading beforehand:
1) http://ciee.ucop.edu/dretd/documents/DR%20Security%20Final%20Report%20(DRAFT).pdf
OR http://tinyurl.com/y48r8x --
for short
2) http://stlr.stanford.edu/pdf/Mulligan-Lerner-abstract.pdf
|
| Priya Narasimhan |
Session 1: Towards
Fingerpointing in Distributed Systems
This session will focus on multiple aspects of dependability in distributed
systems, including those related to system adaptation and problem diagnosis.
Distributed systems are increasingly growing larger and more complex,
and becoming vulnerable to the propagation of failures due to the inherent
coupling between components. Fingerpointing (i.e., root-cause analysis,
problem determination or failure diagnosis) is especially challenging
in these environments because the resulting fault-manifestations can travel,
obscuring the root-cause of the problem and leading to potential red-herrings
in diagnosis. This session will describe in detail some of our initial
investigations and the lessons learned in fingerpointing the root-cause
of a variety of problems in replicated distributed systems. Our current
approach to diagnosing correlated performance problems combines node-level
(local) anomaly detection with subsequent system-wide (global) fingerpointing.
The session will also cover some of our work in failure prediction, as
well as ongoing and future directions in our fingerpointing research.
Session 2: Assistive Embedded Technologies
This session will focus on multiple aspects of networked embedded-systems
research. In particular, this session will focus on Trinetra, a project
focused on developing assistive technologies through the integration of
commercial off-the-shelf embedded systems. Equipped with a smartphone
and a Bluetooth-enabled barcode scanning device, the initial Trinetra
system provided blind people with an increased degree of independence
in grocery shopping. This session will describe some of the principles
underlying assistive technologies for the blind, through the lessons that
we have learned in developing and deploying Trinetra. Also covered will
be ongoing and future research directions with assistive technologies
for the blind and other target demographics. This session will also highlight
some of our related sensor-network research, particularly in the areas
of embedded sensor middleware and secure code updates.
|
| Diana Smetters |
|
| Dawn Song |
|
1-- Title: Towards an Automatic Immune System for Internet Health
Just as any living organism is constantly threatened by rapacious pathogens,
the Internet is continuously threatened by cyber pathogens (e.g., Internet
worms, botnets, spyware), which have caused billions of dollars of estimated
annual financial losses. Just as any living organism needs a strong immune
system to survive and be healthy, so does the Internet. My research group
has devised various techniques (and systems) towards this goal. In this
talk, I will give one such example---Sting, an automatic immune system
against Internet worms. Sting can automatically and accurately detect
new exploits even for previously unknown vulnerabilities, and generate
effective anti-bodies (including signatures and hardened binaries) to
protect vulnerable hosts and networks from further attacks; with proven
properties, and all just within minutes or even seconds. I will then offer
a glimpse of some of our other results in the area, including automatic
dissection of malicious binaries to discover hidden behaviors and threats.
-------------------------------------------------------------------
2-- Title: Privacy-preserving search, set operations, and beyond
In this talk, I will describe our recent work on designing practical cryptographic
primitives and security mechanisms to enable secure and privacy-preserving
information aggregation and processing. As one example, I will talk about
searching on encrypted data, in particular, how to enable keyword and
range queries on encrypted data without revealing any other information
about the content of the data. As another example, I will describe our
new approach to enable private stream search, and as an application, a
private version of the Google News Service, where users obtain news feeds
that match their keyword queries from the servers without the servers
knowing what keywords the user is searching for or which news articles
actually match the user's query. Finally, I will describe our algorithm
to enable privacy-preserving set operations, where only the result of
the set operations will be revealed and no additional information about
users' private input sets will be leaked. Set operations are among the
most common primitives in database operations; our mechanism provides
the first efficient privacy-preserving solution for a broad spectrum of
different set operations and enables important applications in different
areas such as medical system privacy and privacy in distributed network
monitoring systems. I will conclude with future work and applications
and some intriguing open problems.
|
| Yuan Xue |
Security and Privacy
Issues in Sensor-based Remote Health Care System
Advances in medical monitor
devices, sensors and wireless networking technology have made possible
the development of medical sensor network which allows remote and in-home
health care. Such medical sensor systems have tremendous potential to
improve medical care by reducing costs and increasing life quality. However,
to realize it's potential, many urgent technical issues arise, mainly
due to the privacy nature associated with the medical information and
its high fidelity and reliable transmission requirement. This talk discusses
the system architectures, algorithms and network protocols that are able
to provide high resilience quality-of-service-assured sensor-based health
monitoring service that preserves sensitive patient information.
|
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