[Colloquium] Reminder: Seminar Announcement: Local Gaussian Process Approximation for Large Computer Experiments
Ninfa Mayorga
ninfa at ci.uchicago.edu
Wed Jul 10 14:41:57 CDT 2013
~Reminder
Computation Institute Presentation
Speaker: Robert B. Gramacy, Assistant Professor, Econometrics and Statistics, Booth School of Business, University of Chicago
Date: July 11, 2013
Time: 1:00 PM - 2:00 PM
Location: The University of Chicago, Searle 240A, 5735 S. Ellis Ave., This talk will be broadcast via Adobe Connect.
Local Gaussian Process Approximation for Large Computer Experiments
Abstract: We provide a new approach to approximate emulation of large computer experiments. By focusing expressly on desirable properties of the predictive equations, we derive a family of local sequential design schemes that dynamically define the support of a Gaussian process predictor based on a local subset of the data. We further derive expressions for fast sequential updating of all needed quantities as the local designs are built-up iteratively. Then we show how independent application of our local design strategy across the elements of a vast predictive grid facilitates a trivially parallel implementation. The end result is a global predictor able to take advantage of modern multicore architectures, while at the same time allowing for a nonstationary modeling feature as a bonus. We demonstrate our method on two examples utilizing designs sized in the thousands, and tens of thousands of data points. Comparisons are made to the method of compactly supported covariances.
Information: This talk will be broadcast to Argonne National Laboratory, TCS Building 240, Room 5172. You may also join the broadcast from your location by joining Adobe Connect Meeting.
To join the meeting:
http://anl.adobeconnect.com/tcs-ci
-Enter as a guest
If you have never attended an Adobe Connect meeting before:
Test your connection:
http://anl.adobeconnect.com/common/help/en/support/meeting_test.htm
Get a quick overview: http://www.adobe.com/go/connectpro_overview
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.cs.uchicago.edu/pipermail/colloquium/attachments/20130710/7d4740b0/attachment.htm
More information about the Colloquium
mailing list