systems science
DESCRIPTION
Overview of the coverging trends of huge data sets, crowdsourcing, and human computation.TRANSCRIPT
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Systems ScienceTackling Complexity in the 21st Century
Jeffrey P. BighamROC HCI Group
Computer ScienceUniversity of Rochester
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DATA!90s and Today
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Examples
data.gov
onebusaway.org
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512kb of memory1970s
Terabytes of memory2000s
CLOUD OF DATA
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Data + Algorithms(machine learning)
NetFlix
Pandora
eHarmonyGMail
Yelp
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Where is my bus?
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NetFlix
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NetFlix Prize!
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Linking IMDB and NetFlix
Arvind Narayanan and Vitaly Shmatikov “Robust De-anonymization of Large Sparse Datasets.” 2008.
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When Good Recommendations Go Bad
USA Today. January 5, 2006
Wall Street Journal. November 26, 2002
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“…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
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NetFlix Prize Winners
$1 Million to the best team
Teams collaborated, mixed, and joined
Winner used “meta-learning”
Combined multiple virtual “experts”
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THE CROWD
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Wikipedia
Barnstar
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http://www.cs.cornell.edu/~crandall/photomap/
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The Anatomy of a Social Search Engine
vark.com
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Foursquare
“Congratulations! You just became the mayor of your house!”
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Please don’t Rob Me?
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HUMAN COMPUTATION
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Google Image Labeler(ESP Game)
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Make Big Money!
Mturk.com
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Middle Management
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Why wouldn’t a tenured professor want a virtual farm?
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400 m
80 m
20 m
… …
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Summary
• Data (LOTS OF DATA)
• Algorithms leverage data
• Humans use computers– Can computers use humans?
• Social context and privacy– These change quickly!
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