COMETA Colloquium: Jonas Spinner

Monday 27 Jan 2025, 16:00 → 18:00 Europe/Zurich

Zoom room: https://cern.zoom.us/j/63628931616?pwd=YnlaRzlQck84b2szN2lPUlVqOGoxZz09

 

This event is organised by the COMETA COST Action, a EU-funded networking initiative that promotes knowledge sharing and cooperation across the theory, experiment, and ML communities, with the aim of improving the measurement and interpretation of multiboson processes at the LHC.

Find recordings of all COMETA Colloquia on our youtube channel @multibosons!

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Featuring Jonas Spinner introducing the LGATr architecture

16:00 → 17:00 A Lorentz-Equivariant Transformer for All of the LHC

We show that the Lorentz-Equivariant Geometric Algebra Transformer (L-GATr) yields state-of-the-art performance for a wide range of machine learning tasks at the Large Hadron Collider. L-GATr represents data in a geometric algebra over space-time and is equivariant under Lorentz transformations. The underlying architecture is a versatile and scalable transformer, which is able to break symmetries if needed. We demonstrate the power of L-GATr for amplitude regression and jet classification, and then benchmark it as the first Lorentz-equivariant generative network. For all three LHC tasks, we find significant improvements over previous architectures.

Speaker: Jonas Spinner

lgatr-cometa.pdf