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arXiv 2404.18992hep-phhep-exphysics.data-anphysics.ins-detstat.ML
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用归一化流统一模拟与推断

Unifying Simulation and Inference with Normalizing Flows

Haoxing Du, Claudius Krause, Vinicius Mikuni, Benjamin Nachman, Ian Pang, David Shih

AI总结:

本文提出用条件生成模型的最大似然估计统一探测器校准与快速模拟,通过似然形状确定非高斯分辨率,并在类 ATLAS 量能器模拟中验证了能量校准效果。

摘要:

深度神经网络已被广泛应用于探测器校准,同时越来越多的研究提出将深度生成模型用作自动化快速探测器模拟器。我们证明,这两项任务可以通过使用条件生成模型的最大似然估计(MLE)进行能量回归来统一。与直接回归技术不同,MLE 方法不依赖于先验,并且可以从似然函数在最大值附近的形状确定非高斯分辨率。我们使用一个类似 ATLAS 的量能器模拟,在量能器能量校准的背景下展示了这一概念。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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