systems science
DESCRIPTION
Overview of the coverging trends of huge data sets, crowdsourcing, and human computation.TRANSCRIPT
Systems ScienceTackling Complexity in the 21st Century
Jeffrey P. BighamROC HCI Group
Computer ScienceUniversity of Rochester
DATA!90s and Today
Examples
data.gov
onebusaway.org
512kb of memory1970s
Terabytes of memory2000s
CLOUD OF DATA
Data + Algorithms(machine learning)
NetFlix
Pandora
eHarmonyGMail
Yelp
Where is my bus?
NetFlix
NetFlix Prize!
Linking IMDB and NetFlix
Arvind Narayanan and Vitaly Shmatikov “Robust De-anonymization of Large Sparse Datasets.” 2008.
When Good Recommendations Go Bad
USA Today. January 5, 2006
Wall Street Journal. November 26, 2002
“…a team at Google couldn’t decide between two blues, so they’re testing 41 shades between each blue to see which one performs better. I had a recent debate over whether a border should be 3, 4 or 5 pixels wide, and was asked to prove my case. I can’t operate in an environment like that. I’ve grown tired of debating such miniscule design decisions. There are more exciting design problems in this world to tackle.”
Doug BowmanFormer Google Designerhttp://stopdesign.com
NetFlix Prize Winners
$1 Million to the best team
Teams collaborated, mixed, and joined
Winner used “meta-learning”
Combined multiple virtual “experts”
THE CROWD
Wikipedia
Barnstar
http://www.cs.cornell.edu/~crandall/photomap/
The Anatomy of a Social Search Engine
vark.com
Foursquare
“Congratulations! You just became the mayor of your house!”
Please don’t Rob Me?
HUMAN COMPUTATION
Google Image Labeler(ESP Game)
Make Big Money!
Mturk.com
Middle Management
Why wouldn’t a tenured professor want a virtual farm?
400 m
80 m
20 m
… …
Summary
• Data (LOTS OF DATA)
• Algorithms leverage data
• Humans use computers– Can computers use humans?
• Social context and privacy– These change quickly!
