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Chiu-Yen Kao

February 2019

Estimating the physical location of Twitter users with the von Mises-Fisher distribution (Mike Izbicki, UC Riverside)

February 4 @ 4:15 pm - 5:15 pm
Emmy Noether Room, Millikan 1021, Pomona College, 610 N. College Ave.
Claremont, California 91711
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Approximately 500 million tweets are sent everyday.  Scientists monitor these tweets to predict the spread of disease, better allocate social welfare services, help first responders during natural disasters, and many other important tasks.  A key step in each of these tasks is estimating the location the tweet was sent from.  In this talk, I discuss how to combine machine learning and the von Mises-Fisher distribution to estimate this location.  The von Mises-Fisher distribution is the spherical analog of the Gaussian distribution, and this distribution lets us exploit…

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