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Unifying Simulation and Inference with Normalizing Flows

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arxiv 2404.18992 v3 pith:2QH3SCWW submitted 2024-04-29 hep-ph hep-exphysics.data-anphysics.ins-detstat.ML

classification hep-phhep-exphysics.data-anphysics.ins-detstat.ML
keywords calorimeterdeepdetectorenergygenerativelikelihoodmaximummodels
verification ladder T0 review T1 audit T2 compute T3 formal
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There have been many applications of deep neural networks to detector calibrations and a growing number of studies that propose deep generative models as automated fast detector simulators. We show that these two tasks can be unified by using maximum likelihood estimation (MLE) from conditional generative models for energy regression. Unlike direct regression techniques, the MLE approach is prior-independent and non-Gaussian resolutions can be determined from the shape of the likelihood near the maximum. Using an ATLAS-like calorimeter simulation, we demonstrate this concept in the context of calorimeter energy calibration.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. GPT-like transformer model for silicon tracking detector simulation

    physics.ins-det 2025-12 conditional novelty 6.0 of 10

    A decoder-only transformer trained on tokenized Geant4 hit sequences generates silicon tracker hits that reconstruct to near-Geant4-quality tracks for single muons.

  2. Toward an event-level analysis of hadron structure using differential programming

    hep-ph 2025-07 conditional novelty 4.0 of 10

    LOITS is a differentiable sampling method, demonstrated in a GAN closure test, that maps sampled events back to the parameters of a target density for event-level inference.

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