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Mining the Sky: Discovering the Unexpected in Exascale Data

PDE and Applied Math Seminar

Speaker: Tony Tyson, UC Davis
Location: 1147 MSB
Start time: Fri, Apr 15 2016, 4:10PM

Fueled by advances in software, microelectronics, and large optics fabrication, a new type of sky survey will soon begin. In a relentless campaign of 15 second exposures, the Large Synoptic Survey Telescope will cover the sky deeply every week, opening a movie-like window on objects that change or move on rapid timescales. The superb images from the LSST will chart billions of remote galaxies in 4-D, providing multiple probes of the mysterious Dark Matter and Dark Energy. Hundreds of petabytes will be mined and compared with Exascale simulations. This will require: complex analyses on large databases using fast approximate algorithms, and the solution of large statistical inverse problems. I will describe a novel high dimensional database and the computational challenge.