Results 51 to 60 of about 78,109 (159)

Uncertainty quantification under group sparsity [PDF]

open access: yesBiometrika, 2017
Quantifying the uncertainty in penalized regression under group sparsity is an important open question. We establish, under a high-dimensional scaling, the asymptotic validity of a modified parametric bootstrap method for the group lasso, assuming a Gaussian error model and mild conditions on the design matrix and the true coefficients.
Zhou, Qing, Min, Seunghyun
openaire   +2 more sources

Uncertainty quantification by large language models

open access: yesMachine Learning with Applications
As reasoning capabilities of large language models (LLMs) continue to advance, they are being integrated into increasingly complex scientific workflows, with the goal of developing agents capable of generating evidence-based explanations and testing ...
Dorianis M. Perez   +2 more
doaj   +1 more source

Temporal distribution shift in real-world pharmaceutical data: Implications for uncertainty quantification in QSAR models

open access: yesArtificial Intelligence in the Life Sciences
The estimation of uncertainties associated with predictions from quantitative structure–activity relationship (QSAR) models can accelerate the drug discovery process by identifying promising experiments and allowing an efficient allocation of resources ...
Hannah Rosa Friesacher   +5 more
doaj   +1 more source

Present and Future of Model Uncertainty Quantification in Process Systems Engineering

open access: yesChemical Engineering Transactions, 2019
This contribution investigates the impact of model uncertainty quantification techniques in different areas of process systems engineering (PSE), namely dynamic optimization, predictive maintenance, soft-sensor systems and risk assessment, using three ...
Francesco Rossi   +3 more
doaj   +1 more source

Neural Network-Based Uncertainty Quantification: A Survey of Methodologies and Applications

open access: yesIEEE Access, 2018
Uncertainty quantification plays a critical role in the process of decision making and optimization in many fields of science and engineering. The field has gained an overwhelming attention among researchers in recent years resulting in an arsenal of ...
H. M. Dipu Kabir   +3 more
doaj   +1 more source

Uncertainty quantification and optimal decisions [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017
A mathematical model can be analysed to construct policies for action that are close to optimal for the model. If the model is accurate, such policies will be close to optimal when implemented in the real world. In this paper, the different aspects of an ideal workflow are reviewed: modelling, forecasting, evaluating forecasts, data assimilation and ...
openaire   +4 more sources

Uncertainty quantification for deep learning

open access: yesEnvironmental Data Science
We present a critical survey on the consistency of uncertainty quantification used in deep learning and highlight partial uncertainty coverage and many inconsistencies.
Peter Jan van Leeuwen   +2 more
doaj   +1 more source

Optimal Uncertainty Quantification

open access: yes, 2011
We propose a rigorous framework for Uncertainty Quantification (UQ) in which the UQ objectives and the assumptions/information set are brought to the forefront. This framework, which we call Optimal Uncertainty Quantification (OUQ), is based on the observation that, given a set of assumptions and information about the problem, there exist optimal ...
Owhadi, H.   +4 more
openaire   +2 more sources

An Uncertainty-Aware Visual System for Image Pre-Processing

open access: yesJournal of Imaging, 2018
Due to image reconstruction process of all image capturing methods, image data is inherently affected by uncertainty. This is caused by the underlying image reconstruction model, that is not capable to map all physical properties in its entirety.
Christina Gillmann   +4 more
doaj   +1 more source

Uncertainty Quantification and Sensitivity Analysis of Transonic Aerodynamics with Geometric Uncertainty

open access: yesInternational Journal of Aerospace Engineering, 2017
Airfoil geometric uncertainty can generate aerodynamic characteristics fluctuations. Uncertainty quantification is applied to compute its impact on the aerodynamic characteristics. In addition, the contribution of each uncertainty variable to aerodynamic
Xiaojing Wu, Weiwei Zhang, Shufang Song
doaj   +1 more source

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