Bayesflow: Amortized bayesian workflows with neural networks

ST Radev, M Schmitt, L Schumacher… - arXiv preprint arXiv …, 2023 - arxiv.org
Modern Bayesian inference involves a mixture of computational techniques for estimating,
validating, and drawing conclusions from probabilistic models as part of principled …

CaloFlow: fast and accurate generation of calorimeter showers with normalizing flows

C Krause, D Shih - arXiv preprint arXiv:2106.05285, 2021 - arxiv.org
We introduce CaloFlow, a fast detector simulation framework based on normalizing flows.
For the first time, we demonstrate that normalizing flows can reproduce many-channel …

How to understand limitations of generative networks

R Das, L Favaro, T Heimel, C Krause, T Plehn, D Shih - SciPost Physics, 2024 - scipost.org
Well-trained classifiers and their complete weight distributions provide us with a well-
motivated and practicable method to test generative networks in particle physics. We …

Jet Diffusion versus JetGPT--Modern Networks for the LHC

A Butter, N Huetsch, SP Schweitzer, T Plehn… - arXiv preprint arXiv …, 2023 - arxiv.org
We introduce two diffusion models and an autoregressive transformer for LHC physics
simulations. Bayesian versions allow us to control the networks and capture training …

Fast and accurate simulations of calorimeter showers with normalizing flows

C Krause, D Shih - Physical Review D, 2023 - APS
We introduce caloflow, a fast detector simulation framework based on normalizing flows. For
the first time, we demonstrate that normalizing flows can reproduce many-channel …

Generative networks for precision enthusiasts

A Butter, T Heimel, S Hummerich, T Krebs, T Plehn… - SciPost Physics, 2023 - scipost.org
Generative networks are opening new avenues in fast event generation for the LHC. We
show how generative flow networks can reach percent-level precision for kinematic …

JANA: Jointly amortized neural approximation of complex Bayesian models

ST Radev, M Schmitt, V Pratz… - Uncertainty in …, 2023 - proceedings.mlr.press
This work proposes “jointly amortized neural approximation”(JANA) of intractable likelihood
functions and posterior densities arising in Bayesian surrogate modeling and simulation …

Free-form flows: Make any architecture a normalizing flow

F Draxler, P Sorrenson… - International …, 2024 - proceedings.mlr.press
Normalizing Flows are generative models that directly maximize the likelihood. Previously,
the design of normalizing flows was largely constrained by the need for analytical …

Two invertible networks for the matrix element method

A Butter, T Heimel, T Martini, S Peitzsch, T Plehn - SciPost Physics, 2023 - scipost.org
The matrix element method is widely considered the ultimate LHC inference tool for small
event numbers. We show how a combination of two conditional generative neural networks …

MadNIS-Neural multi-channel importance sampling

T Heimel, R Winterhalder, A Butter, J Isaacson… - SciPost Physics, 2023 - scipost.org
Abstract Theory predictions for the LHC require precise numerical phase-space integration
and generation of unweighted events. We combine machine-learned multi-channel weights …