Results 11 to 20 of about 531,785 (265)

Estimation error of the constrained lasso [PDF]

open access: yes2016 54th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2016
This paper presents a non-asymptotic upper bound for the estimation error of the constrained lasso, under the high-dimensional (n ≪ p) setting. In contrast to existing results, the error bound in this paper is sharp, is valid when the parameter to be estimated is not exactly sparse (e.g., when it is weakly sparse), and shows explicitly the effect of ...
Nissim Zerbib   +3 more
openaire   +2 more sources

Robust Relative Error Estimation [PDF]

open access: yesEntropy, 2018
Relative error estimation has been recently used in regression analysis. A crucial issue of the existing relative error estimation procedures is that they are sensitive to outliers. To address this issue, we employ the γ -likelihood function, which is constructed through γ -cross entropy with keeping the original statistical model in use. The
Kei Hirose, Hiroki Masuda
openaire   +4 more sources

Error Analysis of Model-based State-of-Charge Estimation for Lithium-Ion Batteries at Different Temperatures

open access: yesInternational Journal of Electrochemical Science, 2020
State-of-charge (SOC) estimation of lithium-ion batteries (LIBs) is one of the core functions of a battery management system (BMS). Until now, numerous approaches have been proposed to achieve high- accuracy SOC estimation, among which the model-based ...
Zhong Ren   +3 more
doaj   +1 more source

The estimation of truncation error by τ-estimation revisited [PDF]

open access: yesJournal of Computational Physics, 2012
The aim of this paper was to accurately estimate the local truncation error of partial differential equations, that are numerically solved using a finite difference or finite volume approach on structured and unstructured meshes. In this work, we approximated the local truncation error using the @t-estimation procedure, which aims to compare the ...
Fraysse, François   +2 more
openaire   +3 more sources

Accuracy of an Artificial Intelligence–Based Model for Estimating Leftover Liquid Food in Hospitals: Validation Study

open access: yesJMIR Formative Research, 2022
BackgroundAn accurate evaluation of the nutritional status of malnourished hospitalized patients at a higher risk of complications, such as frailty or disability, is crucial.
Masato Tagi   +10 more
doaj   +1 more source

Parameter estimation for nonlinear sandwich system using instantaneous performance principle.

open access: yesPLoS ONE, 2022
The vast majority of reports mainly focus on the steady-state performance of parameter estimation. Few findings are reported for the instantaneous performance of parameter estimation because the instantaneous performance is difficult to quantify by using
Zhengbin Li, Lijun Ma, Yongqiang Wang
doaj   +1 more source

Recursive weighted least squares estimation algorithm based on minimum model error principle

open access: yesDefence Technology, 2021
Kalman filter is commonly used in data filtering and parameters estimation of nonlinear system, such as projectile's trajectory estimation and control. While there is a drawback that the prior error covariance matrix and filter parameters are difficult ...
Xiaoyun Lei, Zhian Zhang
doaj   +1 more source

IMU Shoulder Angle Estimation: Effects of Sensor-to-Segment Misalignment and Sensor Orientation Error

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
Accurate shoulder joint angle estimation is crucial for analyzing joint kinematics and kinetics across a spectrum of movement applications including in athletic performance evaluation, injury prevention, and rehabilitation.
Kezhe Zhu   +4 more
doaj   +1 more source

Accurate error estimation in CG [PDF]

open access: yesNumerical Algorithms, 2021
In practical computations, the (preconditioned) conjugate gradient (P)CG method is the iterative method of choice for solving systems of linear algebraic equations $Ax=b$ with a real symmetric positive definite matrix $A$. During the iterations it is important to monitor the quality of the approximate solution $x_k$ so that the process could be stopped
Gérard Meurant, Jan Papez, Petr Tichý
openaire   +3 more sources

Asymptotic Performance Analysis of Maximum Likelihood Algorithm for Direction-of-Arrival Estimation: Explicit Expression of Estimation Error and Mean Square Error

open access: yesApplied Sciences, 2020
This paper proposes a new method to get explicit expressions of some quantities associated with performance analysis of the maximum likelihood DOA algorithm in the presence of an additive Gaussian noise on the antenna elements.
Ji Woong Paik, Kyu-Ho Lee, Joon-Ho Lee
doaj   +1 more source

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