4–8 Nov 2024
LPNHE, Paris, France
Europe/Paris timezone

Fast Perfekt: Regression-based refinement of fast simulation

6 Nov 2024, 09:00
20m
Salle séminaire

Salle séminaire

Speaker

Lars Stietz (Hamburg University of Technology (DE))

Description

As data sets grow in size and complexity, simulated data play an increasingly important role in analysis. In many fields, two or more distinct simulation software applications are developed that trade off with each other in terms of accuracy and speed. The quality of insights extracted from the data stand to increase if the accuracy of faster, more economical simulation could be improved to parity or near parity with more resource-intensive but accurate simulation. We present Fast Perfekt, a machine-learned regression-based model for refining fast simulations that employs residual neural networks. A deterministic network is trained using a unique schedule that combines ensemble-based and pair-based loss functions. We explore this methodology in the context of an abstract analytical model and in terms of a realistic particle physics application based on jet properties in hadron collisions at the Large Hadron Collider.

Track Detector simulation & event generation

Authors

Lars Stietz (Hamburg University of Technology (DE)) Moritz Jonas Wolf (Hamburg University (DE))

Co-authors

Patrick Louis S Connor (University Hamburg (DE)) Peter Schleper (Hamburg University (DE)) Samuel Louis Bein (Hamburg University (DE))

Presentation materials