4-8 November 2019
Adelaide Convention Centre
Australia/Adelaide timezone

Interaction networks for jet characterisation at the LHC

4 Nov 2019, 11:30
Riverbank R6 (Adelaide Convention Centre)

Riverbank R6

Adelaide Convention Centre

Oral Track 2 – Offline Computing Track 2 – Offline Computing


Jean-Roch Vlimant (California Institute of Technology (US))


We study the use of interaction networks to perform tasks related to jet reconstruction. In particular, we consider jet tagging for generic boosted-jet topologies, tagging of large-momentum H$\to$bb decays, and anomalous-jet detection. The achieved performance is compared to state-of-the-art deep learning approaches, based on Convolutional or Recurrent architectures. Unlike these approaches, Interaction Networks allow to reach state-of-the art performance without making assumptions on the underlying data (e.g., detector geometry or resolution, particle ordering criterion, etc.). Given their flexibility, Interaction Networks provide an interesting possibility for deployment-friendly deep learning algorithms for the LHC experiments.

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Primary authors

Maurizio Pierini (CERN) Jennifer Ngadiuba (CERN) Kinga Anna Wozniak (University of Vienna (AT)) Olmo Cerri (California Institute of Technology (US)) Thong Nguyen (California Institute of Technology (US)) Javier Mauricio Duarte (Fermi National Accelerator Lab. (US)) Maria Spiropulu (California Institute of Technology (US)) Eric Moreno (California Institute of Technology) Jean-Roch Vlimant (California Institute of Technology (US))

Presentation Materials