15-18 April 2019
CERN
Europe/Zurich timezone
There is a live webcast for this event.

ParticleNet: Jet Tagging via Particle Clouds

17 Apr 2019, 15:10
20m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map

Speaker

Huilin Qu (Univ. of California Santa Barbara (US))

Description

How to represent a jet is at the core of machine learning on jet physics. Inspired by the notion of point cloud, we propose a new approach that considers a jet as an unordered set of its constituent particles, effectively a "particle cloud". Such particle cloud representation of jets is efficient in incorporating raw information of jets and also explicitly respects the permutation symmetry. Based on the particle cloud representation, we propose ParticleNet, a customized neural network architecture using Dynamic Graph CNN for jet tagging problems. The ParticleNet architecture achieves state-of-the-art performance on two representative jet tagging benchmarks and improves significantly over existing methods.

Preferred contribution length 20 minutes

Primary authors

Huilin Qu (Univ. of California Santa Barbara (US)) Loukas Gouskos (Univ. of California Santa Barbara (US))

Presentation Materials