[talks] CS Colloquium Talk By Alyosha Efros on Monday
Thomas Funkhouser
funk at CS.Princeton.EDU
Wed Dec 5 19:21:09 EST 2012
*What makes Big Visual Data hard?*
*Alexei (Alyosha) Efros*
<http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=1&cad=rja&ved=0CC4QFjAA&url=http%3A%2F%2Fwww.cs.cmu.edu%2F%7Eefros%2F&ei=3OS_UK__LsPO0QHl4oCYCw&usg=AFQjCNEioxKVlyC2wRc-mPV8MfT89GiQ9w&sig2=EMFw28l1AaTHSUskJrvhHA>
Carnegie Mellon University
Princeton CS Colloquium
Monday, Dec 10th
CS 105 (Small Auditorium), 4:30PM
There are an estimated 3.5 trillion photographs in the world, of
which 10% have been taken in the past 12 months. Facebook alone
reports 6 billion photo uploads per month. Every minute, 72 hours of
video are uploaded to YouTube. Cisco estimates that in the next few
years, visual data (photos and video) will account for over 85% of
total internet traffic. Yet, we currently lack effective
computational methods for making sense of all this mass of visual
data. Unlike easily indexed content, such as text, visual content is
not routinely searched or mined; it's not even hyperlinked. Visual
data is Internet's "digital dark matter" [Perona,2010] -- it's just
sitting there!
In this talk, I will first discuss some of the unique challenges
that make Big Visual Data difficult compared to other types of
content. In particular, I will argue that the central problem is the
lack a good measure of similarity for visual data. I will then
present some of our recent work that aims to address this challenge
in the context of visual matching, image retrieval and visual data
mining. As an application of the latter, we used Google Street View
data for an entire city in an attempt to answer that age-old
question which has been vexing poets (and poets-turned-geeks): "What
makes Paris look like Paris?"
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