Articles with "model uncertainty" as a keyword



Overcoming Model Uncertainty — How Equivalence Tests Can Benefit From Model Averaging

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Published in 2024 at "Statistics in Medicine"

DOI: 10.1002/sim.10309

Abstract: A common problem in numerous research areas, particularly in clinical trials, is to test whether the effect of an explanatory variable on an outcome variable is equivalent across different groups. In practice, these tests are… read more here.

Keywords: model averaging; equivalence; overcoming model; model ... See more keywords

Impact of systematic and amplitude model correlations within and between systems of combined input: a case study with ϕ2 (α)

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep10(2021)110

Abstract: Abstract The pursuit of experimental precision in the CP-violating weak phase ϕ2 (α) is not without its challenges, in part due to the need to combine multiple physical observables from various related decay channels, and… read more here.

Keywords: case; systematic amplitude; model; model uncertainty ... See more keywords

Counterfactual explanation of Bayesian model uncertainty

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Published in 2021 at "Neural Computing and Applications"

DOI: 10.1007/s00521-021-06528-z

Abstract: Artificial intelligence systems are becoming ubiquitous in everyday life as well as in high-risk environments, such as autonomous driving, medical treatment, and medicine. The opaque nature of the deep neural network raises concerns about its… read more here.

Keywords: counterfactual explanation; model; bayesian model; model uncertainty ... See more keywords

Bond of recycled coarse aggregate concrete: Model uncertainty and reliability-based calibration of design equations

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Published in 2021 at "Engineering Structures"

DOI: 10.1016/j.engstruct.2021.112290

Abstract: Abstract This paper concerns the design of lap splice lengths for ribbed steel reinforcement bars embedded in concrete produced with coarse recycled concrete aggregates. Recycled aggregates are weaker and typically lead to concrete with lower… read more here.

Keywords: aggregate concrete; model; model uncertainty; bond ... See more keywords

On the model uncertainty of wave induced platform motions and mooring loads of a semisubmersible based wind turbine

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Published in 2018 at "Ocean Engineering"

DOI: 10.1016/j.oceaneng.2017.11.001

Abstract: Abstract This work quantifies the model uncertainty in the wave-induced motion calculations of the codes in the Offshore Code Comparison Study Phase II, Semisubmersible Platform Based Floating Wind Turbine. Root mean square values are used… read more here.

Keywords: uncertainty; uncertainty wave; wave induced; wind turbine ... See more keywords

Quantification of model uncertainty in RANS simulations: A review

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Published in 2019 at "Progress in Aerospace Sciences"

DOI: 10.1016/j.paerosci.2018.10.001

Abstract: In computational fluid dynamics simulations of industrial flows, models based on the Reynolds-averaged Navier–Stokes (RANS) equations are expected to play an important role in decades to come. However, model uncertainties are still a major obstacle… read more here.

Keywords: simulations review; quantification model; uncertainty; model uncertainty ... See more keywords

Identifying elastoplastic parameters with Bayes’ theorem considering output error, input error and model uncertainty

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Published in 2019 at "Probabilistic Engineering Mechanics"

DOI: 10.1016/j.probengmech.2018.08.004

Abstract: Abstract We discuss Bayesian inference for the identification of elastoplastic material parameters. In addition to errors in the stress measurements, which are commonly considered, we furthermore consider errors in the strain measurements. Since a difference… read more here.

Keywords: input; model; model uncertainty; error model ... See more keywords

Model uncertainty assessment for symmetric and right-skewed distributions

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Published in 2024 at "Scandinavian Actuarial Journal"

DOI: 10.1080/03461238.2024.2421852

Abstract: In actuarial modeling, right-skewed distributions are of paramount importance. Typically, they have the property of becoming unimodal and symmetric after applying some increasing concave transformation $ \mathsf {T} $ T (e.g. log-transformation). In what follows,… read more here.

Keywords: symmetric right; uncertainty assessment; assessment symmetric; right skewed ... See more keywords
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BlindNet: an untrained learning approach toward computational imaging with model uncertainty

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Published in 2021 at "Journal of Physics D: Applied Physics"

DOI: 10.1088/1361-6463/ac2ad4

Abstract: The solution of an inverse problem in computational imaging (CI) often requires the knowledge of the physical model and/or the object. However, in many practical applications, the physical model may not be accurately characterized, leading… read more here.

Keywords: learning approach; model; untrained learning; computational imaging ... See more keywords

Model uncertainty, the COVID-19 pandemic, and the science-policy interface

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Published in 2024 at "Royal Society Open Science"

DOI: 10.1098/rsos.230803

Abstract: The COVID-19 pandemic illustrated many of the challenges with using science to guide planning and policymaking. One such challenge has to do with how to manage, represent and communicate uncertainties in epidemiological models. This is… read more here.

Keywords: covid pandemic; science; policy; science policy ... See more keywords

Comparing Kalman Filters and Observers for Power System Dynamic State Estimation With Model Uncertainty and Malicious Cyber Attacks

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2876883

Abstract: Kalman filters (KFs) and dynamic observers are two main classes of the dynamic state estimation (DSE) routines. The Power system DSE has been implemented by various KFs, such as the extended KF (EKF) and the… read more here.

Keywords: power system; cyber attacks; model uncertainty;