Research Topics in Ubiquitous Computing Jason I. Hong jasonh at cs cmu edu f2004/readings.html

Ubiquitous Computing is Coming Devices in all form factors Sensors everywhere Rich variety of inputs and outputs All wirelessly connected Integrate computation, communication, and sensing with physical world

Ubiquitous Computing is Coming Devices in All Form Factors

Ubiquitous Computing is Coming Sensors Everywhere E911Find a PlaceFind Friend

RFIDs already in greater use than you may realize Wal-Mart mandate of Jan 2005 Ubiquitous Computing is Coming Sensors Everywhere

Ubiquitous Computing is Coming Rich Variety of Inputs and Outputs Read my important

Short-range wireless for consumers –Bluetooth, HomeRF, Near Field Networks Personal Area Networks –Transmit data thru the body Ubiquitous Computing is Coming All Wirelessly Connected

Ubicomp field currently very disparate –Systems, networking, HCI, Machine Learning, … –Different communities, different vocabulary, different papers Goals of this course –Establish a common foundation for ubicomp research –Help advance state of the art Difficult, but many opportunities for defining the field! Just Where Are We Heading?

Undergrad at Georgia Tech, CS and Math –Cyberguide, first mobile tour guide PhD in Computer Science from Berkeley –Dissertation work on privacy and ubicomp systems New faculty at HCII –Interests in ubicomp, focusing on privacy, rapid prototyping, end-user programming, and deployability issues –Office at NSH 3613 –jasonh at cs cmu edu Who Am I?

Name Background –PhD, MS, or undergrad? –What year? –Which unit? (ie CSD, HCII, CALD, RI, etc) Interests –What kinds of research are you doing (if applicable)? –What do you want to get out of this course? Who Are You?

Research = analysis + synthesis –Analysis: understanding other’s work, the good and the bad Difficulty is that there are few provably correct answers –Synthesis: finding new ways to advance state of the art Literature survey Mini-projects Course project Structure of this Course

Read, analyze, critique papers –All research projects fail in some way –Successful projects get some interesting results anyway Class preparation –Reading papers is hard, especially at first –Read before class –Brief review of each paper (bring a printout) ½ page or less 2 most important things about that paper 1 major flaw (or ideas for extension / verification) Will see if can switch to Blackboard online discussions Literature Survey

Each person will do 10-20min presentation for a day –Overview of readings –Highlight what you think are interesting points –Outline some questions for discussion Rest of time devoted to discussion –What are the problems this paper addresses? –How well does it address them? Realistic? Deployable? –How to extend this research? –Grad class, material may be controversial I’ll do occasional presentations too Class Format

Visions and Challenges of Ubiquitous Computing Context-Awareness –Location sensing, uncertainty, prototyping tools Applications –Home, workspaces, smart mobs, developing countries Privacy System Architectures –Sensor networks, RFIDs Overview of Course Topics

Small projects to give you a flavor of ubicomp –A few days of work –Encouraged to work in groups Basis of mini-projects –Topiary –Place Lab Mini-Projects

Quickly create mockups of location-based apps “Run” these mockups with real users to get feedback Mini-Projects Topiary

PlaceLab location via local database of WiFi Points –Unique WiFi MAC Address -> Latitude, Longitude –Periodically update your local copy ABC –Works indoors and in urban canyons –Works with encrypted nodes –No special equipment –Privacy-sensitive –Rides the WiFi wave PlaceLab for Acquiring Location

PlaceLab SF Bay Area ~60000 Nodes (~4 Megs)

PlaceLab University of California Berkeley Berkeley Campus ~1000 Nodes

Do a small piece of real research –Teams of 2-3 –“Conference paper” as deliverable –Want best papers to be published in a real conference (With some extra work) Will put some project ideas online at website –You can choose your own projects as well Course Project

Read papers before class –½ page summaries for each paper –Signup to do a presentation Mini-projects Course project Summary of Your Responsibilities

Monday is Labor Day, no class until next Wed Readings –The Computer for the Twenty-First Century, by Mark Weiser –Synthetic Serendipity, by Vernor Vinge –Mike Villa's World, by Harry Goldstein Only two summaries for next time –One for Weiser’s paper –One for Synthetic Serendipity and Mike Villa’s World Will see if I can get coffee, tea, and snacks Next Course

Original vision of ubicomp written in 1991! –Why don’t we have it today? What would it take? How to manage this complexity? –Things are barely interoperable today –Can barely manage the flow of info today What are the core devices? –Buy it at Home Depot, plug it in, and you’re good to go! What are the core services of this world? –Equivalent of Google, Yahoo, and Ebay? What are the programming abstractions? Is this really a world we want to live in? Important Questions to Think About

The Future of Ubicomp?

Office at NSH Questions?

Auto-fill location info on web sites Starbucks MapQuest PageModification URL= txtCity=CityName txtState=RegionCode txtZip=ZIPCode Bootstrapping – Initial Apps Web Page Location Auto-Fill

What does ubicomp enable? New Forms of Entertainment

We will reach a point where the combination of powerful processors, limitless data-storage capacity, ubiquitous sensor networks, and deeply embedded user interfaces will create a bond between human and machine “so intimate that users may reasonably be considered superhumanly intelligent.” - Vernor Vinge One Vision of Ubicomp