Jul 16 – 21, 2017
Embassy Suites Buffalo
US/Eastern timezone

Pileup Mitigation with Machine Learning

Jul 19, 2017, 4:00 PM
Embassy Suites Buffalo

Embassy Suites Buffalo

200 Delaware Avenue Buffalo, NY 14202


Eric Metodiev (Massachusetts Institute of Technology)


We develop a new pileup mitigation technique based on multi-channel jet images using convolutional neural nets. The input to the network is a three-channel jet image: the calorimeter "pixel" information of charged leading vertex particles, charged pileup particles, and neutral particles . We compare our algorithm to existing methods on a wide range of simple and complex jet observables up to 140 collisions per bunch crossing. In addition, we investigate what aspects of the event our algorithms are utilizing and also test the method robustness.

Primary authors

Eric Metodiev (Massachusetts Institute of Technology) Patrick Komiske (Massachusetts Institute of Technology) Ben Nachman (Lawrence Berkeley National Lab. (US)) Matthew Schwartz

Presentation materials