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- W3159608712 abstract "When adjusting nuclear data with integral experiments, care must be taken that spurious adjustments are not made by assimilating poorly characterized integral parameters. If there are unaccounted for biases or poorly estimated uncertainties in the calculated and experimental values for an integral parameter, the Bayesian data assimilation may adjust the nuclear data in a manner that does not reflect the physics of the integral parameter. To identify and lessen the impact of these inconsistent integral parameters, we present a Marginal Likelihood Optimization algorithm. In a data-driven way, the marginalized likelihood is used to modulate hyperparameter terms that decrease the influence of inconsistent integral parameters on the adjustment. The advantage of this approach over other methods in the literature is that it incorporates correlation information and does not remove an integral parameter from the adjustment. Herein, we present and motivate the algorithm, and apply it to an integral data assimilation case study." @default.
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- W3159608712 date "2021-09-01" @default.
- W3159608712 modified "2023-09-27" @default.
- W3159608712 title "Development and application of marginal likelihood optimization for integral parameter adjustment" @default.
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- W3159608712 doi "https://doi.org/10.1016/j.anucene.2021.108255" @default.
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