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Participatory Urban SensingSpeakers: Jeff Burke, Mani Srivastava, Deborah Estrin - Center for Embedded Networked Sensing (CENS) - UCLA
Faculty Sponsor: Sharad Mehrotra
Abstract: Two billion people carry mobile phones. These ubiquitous devices can act as sensor nodes: they are increasingly capable of capturing, classifying and transmitting image, acoustic, location and other data, interactively or autonomously. Though there is much interest and research in distributed sensing for the sciences, industry and defense, we know much less about its function and utility in the public sphere, when the components are owned and operated by everyday users. As sensors, network-connected mobile handsets will be embedded near the ultimate elusive subjects: people and their built environments. Instead of being in the hands of a central observer, these sensors are always-on and under their owners’ control. Leveraging them effectively and conscientiously will require models that prioritize user participation in sensing.
Participatory urban sensing tasks everyday mobile devices, such as cellular phones, to form interactive, participatory sensor networks that enable public and professional users to gather, analyze and share local knowledge. This talk presents motivations, applications and an initial architecture to enhance data credibility, quality, privacy and ‘shareability’ in such networks. A campaign application model will be described that encompasses directed sensing applications at personal, social and urban scales. Example applications will be outlined in four areas: urban planning, public health, cultural identity and creative expression, and natural resource management.
BIOS:
Jeff Burke has designed, managed or produced performances, new genre art installations and capital projects in eight countries over the last seven years. He is Executive Director of REMAP, the Center for Research in Engineering, Media and Performance at UCLA, a joint program of the School of Theater, Film and Television and Henry Samueli School of Engineering and Applied Science. He is currently focusing on urban public space uses for mobile, embedded and media technologies, including approaches that involve communities in system specification and design. http://remap.ucla.edu/jburke/
Mani Srivastava received his Ph.D. in EECS from U.C. Berkeley in 1992. Currently he is a Professor on the Electrical Engineering Faculty at UCLA. He is also associated with the UCLA Center for Embedded Networked Sensing (CENS). His current interests are in embedded sensing, wireless systems, power-aware computing and communications, and pervasive computing and sensing. More information about him and his research group is available at his Networked and Embedded Systems Lab's web site http://nesl.ee.ucla.edu.
Deborah Estrin is a Professor of Computer Science and Electrical Engineering at UCLA, holds the Jon Postel Chair in Computer Networks, and is Founding Director of the NSF-funded Center for Embedded Networked Sensing (CENS). Estrin received her Ph.D. (1985) in Computer Science from the Massachusetts Institute of Technology, and her B.S. (1980) from U.C. Berkeley. Before joining UCLA she was a member of the University of Southern California Computer Science Department where much of her research focused on the design of network and routing protocols. Her current research focuses on the application of spatially and temporally dense embedded sensors to environmental monitoring, including participatory-sensing systems, leveraging the installed base of image and acoustic sensors on cell phones.
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Avigdor Gal
Senior Lecturer, Faculty of Industrial Engineering & Management, Technion
Visiting Assistant Professor, University of Maryland
Faculty Sponsor: Chen Li
Abstract:
The talk will focus on efficient scheduling algorithms for monitoring an information source. In a given time period of length
T, we enforce a server-side politeness constraint that we may only probe the source at most n times. This constraint, along
with an optional constraint that no two probes may be spaced less than delta time units apart, is intended to prevent the
monitor from being classified as a nuisance to be "locked out" of the information source.
This is a joint work with Jonathan Eckstein and Sarit Reiner and is based on a paper that was recently accepted for publications at the INFORMS Journal of Computing.
BIO:
Avigdor Gal is a faculty member at the Faculty of Industrial Engineering & Management at the Technion. He received his
D.Sc. degree from the Technion - Israel Institute of Technology in 1995 in the area of temporal active databases. During his
studies, Avigdor has received the Miriam and Aaron Gutwirth Scholarship three years in a row (1993-1995). He has
published more than 50 papers in journals (e.g. Journal of the ACM (JACM), ACM Transactions on Database Systems
(TODS), IEEE Transactions on Knowledge and Data Engineering (TKDE), and the VLDB Journal), books (Temporal
Databases: Research and Practice) and conferences on the topics of data integration, temporal databases, information
systems architectures, and active databases.
Avigdor is a steering committee member of IFCIS, a member of IFIP WG 2.6, and a recipient of the IBM Faculty Award for 2002-2004. He is a member of the ACM and the IEEE computer society.
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Jun Wang
Information and Communication Theory Group,
Faculty of Electrical Engineering, Mathematics and Computer Science,
Delft University of Technology,
The Netherlands
Faculty Sponsor: Ramesh Jain
Multimedia personalization research is dedicated to building an adaptive multimedia system that can adapt multimedia content to the needs of an individual user. One of the first and critical steps is to learn the interest of a user from the historic interactions with the content (item) or from rating information about the content. This talk presents our approaches to the automatic "word-of-mouth" recommendations in multimedia systems. Firstly, with the log-archive data, we introduce a user-item relevance model which re-formulates the recommendation problem from text retrieval domain. Secondly, with the user rating data, we present a unified probabilistic framework which systematically combines the user-based and item-based approaches to encounter the data sparsity. At the end of the talk, two applications (the Wi-Fi Walkman and the Peer-to-Peer Television) are given.
This work has been done jointly with Marcel Reinders of the Delft University of Technology and Arjen de Vries of CWI.
BIO:
Jun Wang received the B.E. degree in electrical engineering from the Southeast University, Nanjing, China, and the M.Sc. degree in computer science from the National University of Singapore. He is currently pursuing the Ph.D. degree with the Information and Communication Theory Group, Faculty of Electrical Engineering, Mathematics and Computer Science (EWI), the Delft University of Technology, Delft, The Netherlands. He has published over 20 research papers in journals and conference proceedings including IEEE Trans. on Multimedia, ACM Multimedia System Journal, ACM SIGMM and ACM SIGIR. He received the best paper award in the doctoral consortium at ACM SIGIR 2006.
His research interests include: collaborative filtering (recommender systems), information retrieval, pattern recognition and multimedia information systems (content analysis, retrieval, and personalization).
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HYDRA - High Performance Data Recording Architecture for Streaming MediaRoger Zimmermann, Research Assistant Professor
Computer Science Department, USC
Faculty Sponsor: Sharad Mehrotra
In recent years, a considerable amount of research has focused on the efficient retrieval of streaming media. Scant attention has been paid to servers that can record and synchronously manipulate such streams in real-time. This talk presents our framework to enable large-scale, multi-modal, real-time media recording support in a broad class of applications. We introduce the High-performance Data Recording Architecture (HYDRA) which aims to provide a unified paradigm that integrates multi-channel media streaming, recording, retrieval and control in a coherent manner. We elaborate on the technology we have developed for live streaming and our experimental experiences. Some of the properties that make the manipulation of continuous media challenging and different from traditional alphanumeric, text, image, and alphanumeric streaming data, are the combination of real-time storage and retrieval, high bandwidth and large size, and inter-stream synchronization requirements. This talk presents some of the technologies that we have developed for HYDRA and our experimental experiences with several applications. For example, our distributed immersive performance (DIP) project explores one of the most challenging goals of networked media technology: creating a seamless environment for remote and synchronous musical collaboration. In another project we are creating and studying a collaborative environment for aircraft maintenance and training.
BIO:
Roger Zimmermann is currently a Research Assistant Professor with the Computer Science Department and a Research Area Director with the Integrated Media Systems Center (IMSC) at the University of Southern California. His research activities focus on streaming media architectures, peer-to-peer systems, immersive environments, collaborative large-scale group communications, and mobile location-based services. Dr. Zimmermann has co-authored a book, a patent and more than eighty conference publications, journal articles and book chapters in the areas of multimedia and databases. He was the co-chair of the ACM Next-generation Residential Broadband Challenges 2004 workshop, the Open Source Software Competition of the ACM Multimedia 2004 conference, and the short paper program systems track of ACM Multimedia 2005. He is co-chairing the Multimedia Computing and Networking conference 2007 and is the proceedings chair of ACM Multimedia 2006. He is on the editorial board of SIGMOD DiSC, the ACM Computers in Entertainment magazine and the International Journal of Multimedia Tools and Applications. He has served on the conference program committees of many leading conferences in multimedia and is a member of ACM and IEEE.
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Faceted Navigation of User-Generated MetadataBradley P. Allen
Founder and CTO
Siderean Software, Inc.
Faculty Sponsor: Naveen Ashish
Faceted navigation depends on metadata to organize and structure access to information. Traditionally, this metadata has come from relational databases, content management repositories and/or labor-intensive processes for the manual generation of subject and asset metadata by authors and/or specialists. However, applications are now appearing that instead involve end users in the generation of metadata, for example, withthe creation of folksonomies through end user tagging. We discuss applications and work processes that blend these types of user-generated metadata with faceted navigation.
BIO:
Bradley P. Allen is founder and CTO of Siderean Software, Inc., a leading provider of digital navigation solutions. Mr. Allen began his career as a member of the research staff at Carnegie-Mellon's Robotics Institute. As a senior member of the technical team at Inference Corporation he created CBR Express, one of the first case-based reasoning solutions for customer support. He was founder and CTO at Limbex Corporation, where he created WebCompass, an Internet search assistant that won Best Of Show at COMDEX Fall '95. Mr. Allen was also founder of TriVida Corporation, a Web site personalization application services provider, serving as CTO until TriVida's acquisition by Be Free, Inc. in 2000. Mr. Allen earned a BS in applied mathematics from Carnegie-Mellon University in 1982.
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Advanced Technology in Orange County Public Safety Speaker: Rich Toro, Orange County Fire Authority
Faculty Sponsor: Sharad Mehrotra
Rich Toro’s talk started with a discussion of the technologies employed by the Orange County Fire Authority in the past, moved to a description of today’s operational technologies and then focused on future requirements.
Orange County’s public safety radio system dates back to 1934. Over the years additional frequencies were allocated, and sharing of channels between fire and police became possible. In 1984 the department moved from 46 MHz communications to an 800 MHz trunked system. Over time, channels became dedicated to either voice or data (mobile data services). Voice channels are now reserved for tactical communication while mobile data channels are used for more routine communications. Although data rates are low (19.2 kbps), the system works well and successfully offloads routine communications from voice channels. Planning is now underway to enable large amounts of data to be transmitted over the air. Situational awareness and information dissemination to field units are very important. The vision is “to bring the office to the incident.” It’s all about getting the right information to the right person at the right time during crisis response.
Rich also discussed opportunities for RESCUE students to serve as paid interns for the OCFA under a grant the Authority has recently received from DHS. Projects of interest include automatic vehicle location and wireless LAN (licensed band.)
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Faceted Metadata in Search User Interfaces Marti Hearst
Associate Professor, School of Information
UC Berkeley
Sponsored by Professor Ramesh Jain
In the debate about how to improve search, the flexible use of metadata has been winning advocates. In this talk I will describe the advantages and pitfalls of using faceted metadata for integrated browsing and search of large information collections. This approach, instantiated in a system called Flamenco, has achieved strong positive results in usability studies and is becoming widely adopted in ecommerce websites. It also is applicable to collections of images, citations, and digital libraries generally. I will also touch on our recent efforts to automatically generate facet hierarchies.
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Context, context, context: the next law of searchSuranga Chandratillake
CTO and Founder
Blinkx
Sponsored by Professor Ramesh Jain
Today search is predominantly a dumbed-down keyword experience. But keyword search is just the easiest way for computers to randomly access unstructured content—be it text, audio, video or people. As the volume of accessible content grows and the nature of that content increases in complexity, technology needs to get better at providing an easier way for humans to random access it. In this presentation Suranga will talk about blinkx’s approach to contextual search and how this technology may represent a valuable new way to look at the search vs find problem.
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Bradley Horowitz
Vice President, Product Strategy Group
Yahoo!
Sponsored by Professor Ramesh Jain
ABSTRACT:
Web search is now entering its second decade. We
identify and discuss several distinct phases of its
evolution. Early attempts at organizing the web (such
as the Yahoo Directory) relied on human editorial to
classify web sites. The next phase introduced massive
automation and applied standard information retrieval
techniques. The next breakthrough was the realization
that the topology and link structure of the web itself
was crucial to improving relevancy. This takes us to
the modern era of web search, and while there are
many dimensions which can be improved
(comprehensiveness, relevancy, freshness, user-experience,
etc.) we will discuss what Yahoo believes
to be the next important phase in the state of the art:
social search. The concept and attendant technical
challenges of social search will be discussed and
presented, as well as disclosing Yahoo’s progress and
strategy in this area.
BIO: Bradley Horowitz, head of Yahoo!’s product strategy group, is responsible for leading the company’s efforts in building innovative products and platforms. Bradley’s expertise helps drive initiatives that enable the company to provide comprehensive and compelling offerings to customers. Previously he managed a portfolio of products for Yahoo!, including media search, desktop search and the Yahoo! Toolbar.
Prior to joining Yahoo!, Bradley served as both the chief technical officer and the vice president of engineering for the Virage division of Autonomy, where he was responsible for the technical delivery of five major product lines. Prior to Autonomy, he co-founded Virage, the company widely recognized as the market creator and leader for advanced media indexing and analysis. Bradley helped grow the company from “a garage startup” through its NASDAQ IPO.
Bradley was a PhD candidate at the MIT Media Lab. While at the Media Lab, he worked on a number of topics related to computer vision, graphics and image processing, which resulted in a patented new technique for the recovery of structure, motion and camera parameters from video sequences. Bradley holds an MS in Media Science from MIT and a BS in Computer Science from the University of Michigan.
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The Confluence of Technology on the Enforcement, Application and Interpretation of Law: Is the Tail Wagging the Dog? Erin E. Kenneally, M.F.S., J.D.
Cyber Forensics Analyst
University of California, San Diego
San Diego Supercomputer Center
Sponsored by Prof. Sharad Mehrotra
ABSTRACT:
This presentation explores case studies and legal controversies related to the ever-increasing application of automated technologies in performing actions traditionally relegated to humans or resigned to the realm of the imagination. Technology is the means by which we manifest our imaginations and it has been directed to make our lives more efficient. The ubiquity of computer technology has challenged us to
re-examine the meaning of “reasonableness” for legal purposes, and forced society to increasingly rely on digital evidence to resolve disputes in the civil and criminal arenas. Whether it involves verification of vehicle speed, breath alcohol levels, or computer transactions, digital evidence is increasingly utilized to resolve legal disputes and act as the lynchpin of proof.
BIO:
Ms. Kenneally is a licensed attorney who consults, researches, publishes, and speaks on prevailing and forthcoming issues at the crossroads of information technology and the law. These include evidentiary, procedural, and policy implications related to digital forensics, information security, and privacy technology. She has lectured and helped coordinate training conferences for officers of the court, law enforcement, and industry professionals concerned with digital evidence and information forensics. Ms. Kenneally is a Cyber Forensics Analyst at the San Diego Supercomputer Center and CEO of Elchemy, Inc., which advises and conducts applied research and development solutions at the intersection of science and technology, the law and policy. She liaises and holds leadership positions with groups such as the Computer and Technology Computer High Tech Task Force (CATCH), the Global Privacy and Information Quality Working Group (GPIQWG), and the Automated Regional Justice Information System (ARJIS), and consults with numerous private and government advisory committees and working groups engaged in information technology law issues. Ms. Kenneally holds Juris Doctorate and Master of Forensic Sciences degrees.
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Dr. Claude Vogel,
Chief Techonology Officer
Mr. Paul Gardner
Convera
Sponsored by Professor Ramesh Jain
ABSTRACT:
Professional search, whether it is research, analysis or
open discovery, is an important trend of web search.
Current search engines provide horizontal access to
multiple sources, but the burden of sorting out these
sources remains a concern. Transforming the web in an"authoritative web" is an interesting way to solve these
issues: Semantic indexing provides a semantic
signature for web documents which can be verticalized
to fit with a specific professional perspective. Additional
mining tools leverage this semantic added value and
provide an even more rewarding search experience.
BIO:
Dr. Claude Vogel is Convera’s Chief
Technology Officer. In this role, he is
broadening the core indexing, categorization
and dynamic classification capabilities of
Convera’s search, retrieval and categorization
technology. Prior to joining Convera, Dr.
Vogel was the founder and former Chief
Technology Officer of Semio Corporation. He
has a background in Anthropology, Semiotics
and Artificial Intelligence. Dr. Vogel engages
in ongoing research and has published more
than 70 pieces, including nine books on the
subjects of software engineering, cognitive
design, social organizations, and semiotics.
Paul Gardner has a B.S. in Applied Mathematics from the University of Rochester. He has spent the past 19 years producing commercial software for visual pattern recognition and search, and has more recently overseen the design of Convera's Excalibur web search engine and developed its distributed filesystem and large-scale crawler.
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Ontologies for the Semantic WebDr. Jerry Hobbs
Information Sciences Institute
University of Southern California
Faculty Sponsor: Naveen Ashish
ABSTRACT:
Broadly shared ontologies are important for the success of the Semantic Web. It won't help to have only one style of data structure if the concepts
expressed in these data structures do not align. In my lecture I will describe several efforts to develop ontologies for very basic and very important
concepts.
Time: OWL-Time is an ontology of time that has been developed in the past four years. It covers the topological properties of time, such as the "before" relation and the relations in Allen's interval calculus; measures of duration; clock and calendar concepts; and temporal aggregates. We are currently developing an approach to the implicit duration information in event descriptions.
Events: In 2004 we developed a language called Video Event Representation Language (VERL) for defining and representing composite events in video data. We are currently extending this to an ontology of processes and events that will mediate among several frameworks for representing events, including the Process Specification Language(PSL) and the abstract event-related predicates of ResearchCyc.
Information Structure and Commonsense Psychology: Another ontology-building effort we are involved in concerns, first of all, the structure of information as exhibited in symbolic systems of various sorts, including language, diagrams, documents, Web pages, and face-to-face conversation. Some issues are the meanings of atomic elements, how elements compose into complex meanings, and coreference relations among elements. Annotation of these things in Web pages, for example, could lead to more accurate searches for images and diagrams. An ontology of information structure should be grounded in an ontology of commonsense psychology, and this is something we are also developing. It is intended to cover such concepts as memory, belief, envisioning, planning, goals, and similarity judgments.
BIO:
Dr. Jerry R. Hobbs is a prominent researcher in the fields of computational linguistics, discourse analysis, and artificial intelligence. He earned his doctor's
degree from New York University in 1974 in computer science. He has taught at Yale University and the City University of New York. From 1977 to 2002
he was with the Artificial Intelligence Center at SRI International, Menlo Park, California, where he was a principal scientist and program director of the
Natural Language Program. He has written numerous papers in the areas of parsing, syntax, semantic interpretation, information extraction, knowledge
representation, encoding commonsense knowledge, discourse analysis, the structure of conversation, and the Semantic Web. He is the author of the
book "Literature and Cognition", and was also editor of the book "Formal Theories of the Commonsense World". He led SRI's text-understanding
research, and directed the development of the abduction-based TACITUS system for text understanding, and the FASTUS system for rapid extraction of
information from text based on finite-state automata. The latter system constituted the basis for an SRI spinoff, Discern Communications. In September
2002 he took a position as senior computer scientist and research professor at the Information Sciences Institute, University of Southern California. He
has been a consulting professor with the Linguistics Department and the Symbolic Systems Program at Stanford University. He has served as general
editor of the Ablex Series on Artificial Intelligence. He is a past president of the Association for Computational Linguistics, and is a Fellow of the American
Association for Artificial Intelligence. In January 2003 he was awarded an honorary Doctorate of Philosophy from the University of Uppsala, Sweden.
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GeoDec: Enabling Geospatial Decision Making Cyrus Shahabi, University of Southern California
Refreshments served at 10:45 a.m. with talk to follow
Calit2 Room 3008
Related Links:
http://infolab.usc.edu/Shahabi/index.html
http://infolab.usc.edu/projects/geodec/index.jsp
Faculty Sponsor: Professor Ramesh Jain
ABSTRACT:
The vision of GeoDec is to enable an information-rich and realistic 3-dimensional visualization and/or simulation of a geographical location (e.g., a city), rapidly and accurately. The idea is not just to allow navigation through a 3-D model, but to be able to ask queries and get information about the area seamlessly and effortlessly. The main challenge is: How to quickly and cheaply integrate, visualize, and simulate all aspects of a geographic region. The ability to create high-fidelity information-rich models of cities is critical for a wide variety of decision makers. For example, in the United States, GeoDec can be used by city managers, city planners, emergency response planners, and first responders.
In this talk, I will first give our motivation for GeoDec and explain its vision. Next, I will briefly discuss our current activities in the realization of GeoDec. Finally I will conclude with a demonstration of the current prototype of GeoDec.
BIO:
Cyrus Shahabi is an Associate Professor and the Director of the Information Laboratory (InfoLAB) at the Computer Science Department and a Research Area Director at the NSF's Integrated Media Systems Center (IMSC) at the University of Southern California. He is also the CTO of Geosemble Technologies. He received his M.S. and Ph.D. degrees in Computer Science from the University of Southern California in May 1993 and August 1996, respectively. He has a B.S. degree is in Computer Engineering from Sharif University of Technology, Iran and has published two books and more than one hundred articles, book chapters, and conference papers in the areas of databases and multimedia. Dr. Shahabi's current research interests include Peer-to-Peer Systems, Streaming Architectures, Geospatial Data Integration and Multidimensional Data Analysis. He is currently an associate editor of the IEEE Transactions on Parallel and Distributed Systems (TPDS) and is on the editorial board of ACM Computers in Entertainment magazine. He is also the program committee chair of ICDE NetDB 2005 and ACM GIS 2005, and serves on many conference program committees such as IEEE ICDE 2006, ACM CIKM 2005, SSTD 2005 and ACM SIGMOD 2004.
Dr. Shahabi is the recipient of the 2002 National Science Foundation CAREER Award and the 2003 Presidential Early Career Awards for Scientists and Engineers (PECASE). He also received an award from the Okawa Foundations in 2001.
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Guest Speaker: Carlo Regazzoni, University of Genoa
Time: 1:30-2:30pm
Location: Calit2 1st Floor, Multi-purpose, Atkinson Hall, UCSD
Sponsored by: Mohan Trivedi
Mikko Särelä, Helsinki University of Technology
2:00pm, Atkinson Hall (Calit2 Building - UCSD) 5th Floor Seminar Space
Host: Per Johansson
DESCRIPTION/ABSTRACT:
This talk will address Host Identity Protocol and the idea of splitting the locator and identifier nature of IP addresses.
In current Internet infrastructure, IP addresses have a dual purpose. They serve both as locators indicating the place a node has in the Internet topology and as identifiers used to identify the communicating host. With mobility and multihoming becoming more common, the traditional assumption of one host with a single unchanging IP address does not hold anymore.
Host Identity Protocol (HIP) studies the idea of splitting this dual nature of IP addresses. A new Host Identity layer is added between IP and Transport layers, which maps IP addresses to cryptographically secure Host Identities and vice versa. Host Identity Protocol is a research effort at IRTF and IETF to research the idea of identity/locator split and its effects on the Internet architecture. (top)
Raghu Ramakrishnan, University of Wisconsin
Talk begins at 11:00 a.m.
Refreshments served at 10:30 a.m.
Computer Science Building, UC Irvine, Room 432
ABSTRACT:
Data Cubes have been widely studied and implemented, and so we
researchers shouldn't be thinking about them anymore, right? Wrong.
this talk, I'll try to convince you that the multidimensional model of
data ("cube" sounds so much cooler) provides the right perspective for
addressing many challenging tasks, including dealing with imprecision,
mining for interesting subsets of data, analysis of historical stream
data, and world peace. The talk will touch upon results from a couple
of VLDB 2005 papers, and some recent ongoing work.
BIO:
Raghu Ramakrishnan is Professor of Computer Sciences at the University of Wisconsin-Madison, and was founder and CTO of QUIQ, a company that pioneered collaborative customer support (acquired by Kanisa). His research is in the area of database systems, with a focus on data retrieval, analysis, and mining. He and his group have developed scalable algorithms for clustering, decision-tree construction, and itemset counting, and were among the first to investigate mining of continuously evolving, stream data. His work on query optimization and deductive databases has found its way into several commercial database systems, and his work on extending SQL to deal with queries over sequences has influenced the design of window functions in SQL:1999.
He is Chair of ACM SIGMOD, on the Board of Directors of ACM SIGKDD and the Board of Trustees of the VLDB Endowment, an associate editor of ACM Transactions on Database Systems, and was previously editor-in-chief of the Journal of Data Mining and Knowledge Discovery and the Database area editor of the Journal of Logic Programming. Dr. Ramakrishnan is a Fellow of the Association for Computing Machinery (ACM), and has received several awards, including a Packard Foundation Fellowship, an NSF Presidential Young Investigator Award, and an ACM SIGMOD Contributions Award. He has authored over 100 technical papers and written the widely-used text "Database Management Systems" (WCB/McGraw-Hill), now in its third edition (with J. Gehrke).
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This material is based upon work supported by the National Science Foundation under Award Numbers 0331707 and 0331690. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation
© 2005 The Regents of the University of California
All Rights Reserved
