Results 21 to 30 of about 136,829,320 (227)

Maximum likelihood parameter estimation for latent variable models using sequential Monte Carlo [PDF]

open access: yes, 2006
We present a sequential Monte Carlo (SMC) method for maximum likelihood (ML) parameter estimation in latent variable models. Standard methods rely on gradient algorithms such as the ExpectationMaximization (EM) algorithm and its Monte Carlo variants. Our
Davy, Manuel   +12 more
core   +2 more sources

Maximum a posteriori vs maximum probability recursive sparse estimation [PDF]

open access: yes2009 European Control Conference (ECC), 2009
Recursive sparse parameter estimates obtained using the author's recent maximum a posteriori (MAP) approach, where the sparse parameter estimates are determined as the a posteriori mode of a Gaussian sum filter, are compared with a new maximum probability (MP) methodology, where the sparse parameter estimates are determined as the component of a ...
Lachlan Blackhall, Michael Rotkowitz
openaire   +1 more source

Maximum-a-Posteriori Estimation with Bayesian Confidence Regions [PDF]

open access: yesSIAM Journal on Imaging Sciences, 2017
Solutions to inverse problems that are ill-conditioned or ill-posed may have significant intrinsic uncertainty. Unfortunately, analyzing and quantifying this uncertainty is very challenging, particularly in high-dimensional problems. As a result, while most modern mathematical imaging methods produce impressive point estimation results, they are ...
openaire   +3 more sources

Adaptive QRS Detection Based on Maximum A Posteriori Estimation [PDF]

open access: yesIEEE Transactions on Biomedical Engineering, 1982
A mathematical model for the occurrence of nonoverlapping pulse-shaped waveforms corrupted with colored Gaussian noise is considered for the purpose of QRS detection. The number of waveforms, the arrival times, amplitudes, and widths are regarded as random variables.
Börjesson, Per Ola   +3 more
openaire   +2 more sources

Applications of single valued trapezoidal neutrosophic maximum a posteriori estimation in real-life problems [PDF]

open access: yesJournal of Fuzzy Extension and Applications
In this paper, we introduce Single-Valued Trapezoidal Neutrosophic Maximum a Posteriori (SVTN-MAP) estimation to deal with uncertainty in prior distribution parameters, where prior parameters are assumed to be Single-Valued Trapezoidal Neutrosophic ...
Nizar Altounji   +2 more
doaj   +1 more source

A Novel Cluster-Analysis Algorithm Based on MAP Framework for Multi-baseline InSAR Height Reconstruction

open access: yesLeida xuebao, 2017
The multi-baseline InSAR can effectively reduce the adverse effect caused by the abrupt change of the target and the large noise disturbance and can obtain the Digital Elevation Model (DEM) that is more accurate than the single baseline InSAR ...
Si Qi   +4 more
doaj   +1 more source

A hybrid machine learning/pharmacokinetic approach outperforms maximum a posteriori Bayesian estimation by selectively flattening model priors

open access: yesCPT: Pharmacometrics & Systems Pharmacology, 2021
Model‐informed precision dosing (MIPD) approaches typically apply maximum a posteriori (MAP) Bayesian estimation to determine individual pharmacokinetic (PK) parameters with the goal of optimizing future dosing regimens.
Jasmine H. Hughes, Ron J. Keizer
doaj   +1 more source

A Posteriori Error Estimates in the Maximum Norm for Parabolic Problems [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2009
We derive a posteriori error estimates in the $L_\infty((0,T];L_\infty(\Omega))$ norm for approximations of solutions to linear parabolic equations. Using the elliptic reconstruction technique introduced by Makridakis and Nochetto and heat kernel estimates for linear parabolic problems, we first prove a posteriori bounds in the maximum norm for ...
Alan Demlow   +2 more
openaire   +3 more sources

On Maximum a Posteriori Estimation of Hidden Markov Processes

open access: yesCoRR, 2009
We present a theoretical analysis of Maximum a Posteriori (MAP) sequence estimation for binary symmetric hidden Markov processes. We reduce the MAP estimation to the energy minimization of an appropriately defined Ising spin model, and focus on the performance of MAP as characterized by its accuracy and the number of solutions corresponding to a ...
Armen E. Allahverdyan, Aram Galstyan
openaire   +3 more sources

Signal waveform estimation in the presence of uncertainties about the steering vector [PDF]

open access: yes, 2004
We consider the problem of signal waveform estimation using an array of sensors where there exist uncertainties about the steering vector of interest. This problem occurs in many situations, including arrays undergoing deformations, uncalibrated arrays ...
Chalus, Christophe   +2 more
core   +1 more source

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