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Mar 20 – 22, 2018
University of Washington Seattle
US/Pacific timezone

Machine Learning When you Know (Basically) Nothing.

Mar 20, 2018, 5:00 PM
15m
Physics-Astronomy Auditorium A118 (University of Washington Seattle)

Physics-Astronomy Auditorium A118

University of Washington Seattle

Poster 3: Machine learning approaches Poster

Speaker

Ben Nachman (Lawrence Berkeley National Lab. (US))

Description

Machine learning in high energy physics relies heavily on simulation for fully supervised training. This often results in sub-optimal classification when ultimately applied to (unlabeled) data. At CTD2017, we showed how to avoid this problem by training directly on data using as input the fraction of signal and background in each training sample. We now have a new method that does not even require these fractions called Classification Without Labels (CWoLa). In addition to explaining this new method, we show for the first time how to apply these techniques to high-dimensional data, where significant architectural changes are required.

Primary authors

Ben Nachman (Lawrence Berkeley National Lab. (US)) Eric Metodiev (Massachusetts Institute of Technology) Patrick Komiske (Massachusetts Institute of Technology) Francesco Rubbo (SLAC National Accelerator Laboratory (US)) Matthew Schwartz Jesse Thaler Lucio Dery (Stanford University)

Presentation materials