Results 11 to 20 of about 732,139 (286)

Shape-constrained Estimation of Value Functions [PDF]

open access: yesSSRN Electronic Journal, 2013
We present a fully nonparametric method to estimate the value function, via simulation, in the context of expected infinite-horizon discounted rewards for Markov chains.
Glynn, Peter W., Mousavi, Mohammad
core   +3 more sources

A significance test for graph-constrained estimation. [PDF]

open access: yesBiometrics, 2016
Summary Graph-constrained estimation methods encourage similarities among neighboring covariates presented as nodes of a graph, and can result in more accurate estimates, especially in high-dimensional settings. Variable selection approaches can then be utilized to select a subset of variables that are associated with the response ...
Zhao S, Shojaie A.
europepmc   +6 more sources

Minimum variance constrained estimator [PDF]

open access: yesAutomatica, 2022
This paper is concerned with the problem of state estimation for discrete-time linear systems in the presence of additional (equality or inequality) constraints on the state (or estimate). By use of the minimum variance duality, the estimation problem is converted into an optimal control problem.
Mishra, Prabhat K.   +2 more
openaire   +3 more sources

Gamut Constrained Illuminant Estimation [PDF]

open access: yesInternational Journal of Computer Vision, 2006
This paper presents a novel solution to the illuminant estimation problem: the problem of how, given an image of a scene taken under an unknown illuminant, we can recover an estimate of that light. The work is founded on previous gamut mapping solutions to the problem which solve for a scene illuminant by determining the set of diagonal mappings which ...
Finlayson, Graham   +2 more
openaire   +3 more sources

New alternative derivations of Cramér–Rao bound for equality‐constrained estimation

open access: yesElectronics Letters, 2022
This paper presents new alternative derivations of the well‐known constrained Cramér–Rao bound for estimating parameters that satisfy a set of deterministic and differentiable equality constraints.
Xi Li, Yi Liu, Le Yang
doaj   +1 more source

Nonlinear Constrained Moving Horizon Estimation Applied to Vehicle Position Estimation

open access: yesSensors, 2019
The design of high–performance state estimators for future autonomous vehicles constitutes a challenging task, because of the rising complexity and demand for operational safety.
Jonathan Brembeck
doaj   +1 more source

A Physical Model-Based Observer Framework for Nonlinear Constrained State Estimation Applied to Battery State Estimation

open access: yesSensors, 2019
Future electrified autonomous vehicles demand higly accurate knowledge of their system states to guarantee a high-fidelity and reliable control. This constitutes a challenging task—firstly, due to rising complexity and operational safeness, and ...
Jonathan Brembeck
doaj   +1 more source

Efficient estimation of smoothing spline with exact shape constraints

open access: yesStatistical Theory and Related Fields, 2021
Smoothing spline is a popular method in non-parametric function estimation. For the analysis of data from real applications, specific shapes on the estimated function are often required to ensure the estimated function undeviating from the domain ...
Vincent Chan   +4 more
doaj   +1 more source

Robust Control of Underwater Vehicle-Manipulator System Using Grey Wolf Optimizer-Based Nonlinear Disturbance Observer and H-Infinity Controller

open access: yesComplexity, 2020
This paper proposes a new trajectory tracking scheme for the constrained nonlinear underwater vehicle-manipulator system (UVMS). For overcoming the unmodeled uncertainties, external disturbances, and constraints of control inputs in the operation of UVMS,
Yong Dai   +3 more
doaj   +1 more source

Two-stage Estimation for Quantum Detector Tomography: Error Analysis, Numerical and Experimental Results

open access: yes, 2021
Quantum detector tomography is a fundamental technique for calibrating quantum devices and performing quantum engineering tasks. In this paper, a novel quantum detector tomography method is proposed.
Dong, Daoyi   +5 more
core   +2 more sources

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