Results 11 to 20 of about 1,928,307 (242)

On Linearly Constrained Minimum Variance Beamforming [PDF]

open access: yesJ. Mach. Learn. Res., 2015
Beamforming is a widely used technique for source localization in signal processing and neuroimaging. A number of vector-beamformers have been introduced to localize neuronal activity by using magnetoencephalography (MEG) data in the literature ...
Liu, Chao, Zhang, Jian
core   +5 more sources

Relaxing the Assumptions of Minimum-Variance Hedging

open access: yesJournal of Agricultural and Resource Economics, 1996
The most important minimum-variance hedging ration assumptions are (a) that production is deterministic and (b) that all of the agent's wealth is invested in the cash position. Stochastic production greatly reduces optimal hedge ratios.
Sergio H. Lence
doaj   +4 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.
Prabhat Kumar Mishra   +2 more
openaire   +4 more sources

State-space approach to nonlinear predictive generalized minimum variance control [PDF]

open access: yes, 2010
A Nonlinear Predictive Generalized Minimum Variance (NPGMV) control algorithm is introduced for the control of nonlinear discrete-time multivariable systems.
Majecki, P.M.   +3 more
core   +4 more sources

Design of generalized minimum variance controllers for nonlinear multivariable systems [PDF]

open access: yes, 2006
The design and implementation of Generalized Minimum Variance control laws for nonlinear multivariable systems that can include severe nonlinearities is considered.
Grimble, Michael J.
core   +3 more sources

The Empirical Minimum‐Variance Hedge [PDF]

open access: yesAmerican Journal of Agricultural Economics, 1994
AbstractDecision making under unknown true parameters (estimation risk) is discussed along with Bayes' and parameter certainty equivalent (PCE) criteria. Bayes' criterion incorporates estimation risk in a manner consistent with expected utility maximization.
Hayes, Dermot, Lence, Sergio
openaire   +6 more sources

Robust minimum variance beamforming [PDF]

open access: yesIEEE Transactions on Signal Processing, 2004
This paper introduces an extension of minimum variance beamforming that explicitly uses the a-priori uncertainty in the array response. Sources of this uncertainty include imprecise knowledge of the angle of arrival and uncertainty in the array manifold; this uncertainty is modeled via an ellipsoid.
Robert G. Lorenz, Stephen P. Boyd
openaire   +1 more source

Polynomial approach to nonlinear predictive generalized minimum variance control [PDF]

open access: yes, 2010
A relatively simple approach to non-linear predictive generalised minimum variance (NPGMV) control is introduced for non-linear discrete-time multivariable systems.
Majecki, P.M., Grimble, M.J.
core   +4 more sources

Application of futures in calculating optimal hedge ratio in crude oil market: Comparison between static and dynamic approaches [PDF]

open access: yesمدلسازی اقتصادسنجی, 2020
Futures are used as the most important risk hedge tools to reduce the risk of the crude oil market. The optimal hedging risk strategy is determined by calculating the optimal hedging risk ratio.
Simin Aleali   +3 more
doaj   +1 more source

Novel Unbiased Optimal Receding-Horizon Fixed-Lag Smoothers for Linear Discrete Time-Varying Systems

open access: yesApplied Sciences, 2022
This paper proposes novel unbiased minimum-variance receding-horizon fixed-lag (UMVRHF) smoothers in batch and recursive forms for linear discrete time-varying state space models in order to improve the computational efficiency and the estimation ...
Bokyu Kwon, Pyung Soo Kim
doaj   +1 more source

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