Results 21 to 30 of about 3,934 (193)

Forecasting the Disturbance Storm Time Index with Bayesian Deep Learning

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2022
The disturbance storm time (Dst) index is an important and useful measurement in space weather research. It has been used to characterize the size and intensity of a geomagnetic storm.
Yasser Abduallah   +5 more
doaj   +1 more source

Bayesian losses for homoscedastic aleatoric uncertainty modeling in pollen image detection [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The paper investigates the homoscedastic aleatoric uncertainty modeling for the detection of pollen in images. The new uncertainty modeling loss functions are presented, which are based on the focal and smooth L1 losses.
Natalia E. Khanzhina
doaj   +1 more source

Intrinsic randomness in epidemic modelling beyond statistical uncertainty

open access: yesCommunications Physics, 2023
Uncertainty can be classified as either aleatoric (intrinsic randomness) or epistemic (imperfect knowledge of parameters). The majority of frameworks assessing infectious disease risk consider only epistemic uncertainty.
Matthew J. Penn   +9 more
doaj   +1 more source

Cohesion: A Measure of Organisation and Epistemic Uncertainty of Incoherent Ensembles

open access: yesEntropy, 2023
This paper offers a measure of how organised a system is, as defined by self-consistency. Complex dynamics such as tipping points and feedback loops can cause systems with identical initial parameters to vary greatly by their final state.
Timothy Davey
doaj   +1 more source

JOINT ESTIMATION OF DEPTH AND ITS UNCERTAINTY FROM STEREO IMAGES USING BAYESIAN DEEP LEARNING [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
The necessity to identify errors in the context of image-based 3D reconstruction has motivated the development of various methods for the estimation of uncertainty associated with depth estimates in recent years.
M. Mehltretter
doaj   +1 more source

Looking at the posterior: accuracy and uncertainty of neural-network predictions

open access: yesMachine Learning: Science and Technology, 2023
Bayesian inference can quantify uncertainty in the predictions of neural networks using posterior distributions for model parameters and network output.
Hampus Linander   +3 more
doaj   +1 more source

Epistemic and aleatoric uncertainties reduction with rotation variation for medical image segmentation with ConvNets

open access: yesSN Applied Sciences, 2022
The deep convolutional neural network (ConvNet) achieves significant segmentation performance on medical images of various modalities. However, the isolated errors in a large testing set with various tumor conditions are not acceptable in clinical ...
Ge Zhang, Hao Dang, Yulong Xu
doaj   +1 more source

Human Activity Recognition Based on Improved Bayesian Convolution Network to Analyze Health Care Data Using Wearable IoT Device

open access: yesIEEE Access, 2020
In the current scenario, it is significant to design active learning paradigms for analyzing human activities using Wearable Internet of Things (W-IoT) sensors for health parameter analysis.
Zhiqing Zhou, Heng Yu, Hesheng Shi
doaj   +1 more source

Cold Posteriors and Aleatoric Uncertainty

open access: yesCoRR, 2020
5 pages, 3 ...
Ben Adlam, Jasper Snoek, Samuel L. Smith
openaire   +2 more sources

Achieving Robustness to Aleatoric Uncertainty with Heteroscedastic Bayesian Optimisation [PDF]

open access: yes, 2021
Bayesian optimisation is a sample-efficient search methodology that holds great promise for accelerating drug and materials discovery programs.
Lalchand, Vidhi R.   +4 more
core   +6 more sources

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