Advanced Statistical Methods to Fit Nuclear Models

Advanced Statistical Methods to Fit Nuclear Models
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DOI:
10.5506/aphyspolbsupp.12.649
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发表时间:
2018-11
期刊:
Acta Physica Polonica B Proceedings Supplement
影响因子:
--
通讯作者:
M. Shelley;Pascal Becker;A. Gration;A. Pastore
M. Shelley;Pascal Becker;A. Gration;A. Pastore
中科院分区:
其他
文献类型:
--
作者:
M. Shelley;Pascal Becker;A. Gration;A. Pastore

文献摘要

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我们讨论先进的统计方法,以改善核模型的参数估计。特别是,使用液滴模型的核结合能,我们表明,周围的全球最小值的区域可以有效地确定使用高斯过程仿真。我们还演示了如何马尔可夫链蒙特-卡罗抽样是一个有价值的工具,可视化和分析相关的多维似然曲面。
We discuss advanced statistical methods to improve parameter estimation of nuclear models. In particular, using the Liquid Drop Model for nuclear binding energies, we show that the area around the global $\chi^2$ minimum can be efficiently identified using Gaussian Process Emulation. We also demonstrate how Markov-chain Monte-Carlo sampling is a valuable tool for visualising and analysing the associated multidimensional likelihood surface.