Results 11 to 20 of about 2,188,866 (304)
Exact Minimax Estimation for Phase Synchronization [PDF]
IEEE Transactions on Information Theory, 2021 We study the phase synchronization problem with measurements $Y=z^*z^{*H}+σW\in\mathbb{C}^{n\times n}$, where $z^*$ is an $n$-dimensional complex unit-modulus vector and $W$ is a complex-valued Gaussian random matrix. It is assumed that each entry $Y_{jk}$ is observed with probability $p$. We prove that the minimax lower bound of estimating $z^*$ under
Chao Gao 0005, Anderson Y. Zhang
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Exact error estimates and optimal randomized algorithms for integration
, 2007 Exact error estimates for evaluating multi-dimensional integrals are considered. An estimate is called exact if the rates of convergence for the low- and upper-bound estimate coincide. The algorithm with such an exact rate is called optimal.
Atanassov, E., Dimov, I.T.
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Exact Smooth Term-Structure Estimation [PDF]
SIAM Journal on Financial Mathematics, 2016 We present a nonparametric method to estimate the discount curve from market quotes based on the Moore--Penrose pseudoinverse. The discount curve reproduces the market quotes perfectly, has maximal smoothness, and is given in closed-form. The method is easy to implement and requires only basic linear algebra operations.
Filipovic, Damir, Willems, Sander
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On the problem of determining the parameter of an elliptic equation in a Banach space
Nonlinear Analysis, 2014 The boundary value problem of determining the parameter of an elliptic equation -u''(t)+Au(t)=f(t)+p (0⩽t⩽T), u(0)=φ, u(T)=ψ, u(λ)=ξ ...
Allaberen Ashyralyev +1 more
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Estimation of Parameters of Lomax Distribution Based on Record Values [PDF]
The Egyptian Statistical Journal, 2001 In this paper, we derive exact explicit expressions for the single and double moments of the upper record values from Lomax distribution. We then use these expressions to compute t?
Nagi Abd El-Hakim +2 more
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International Journal of Population Data Science, 2022 Objectives Problem drug use (PDU) prevalence is an essential part of evidence base to formulate policy, inform service provision, and assess interventions. Opiate and crack use, particularly injecting, is associated with infectious diseases.
Abdelmajid Djennad +3 more
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Two approximation methods for fractional order Pseudo-Parabolic differential equations
Alexandria Engineering Journal, 2022 In this study, fractional order pseudo-parabolic partial differential equation defined by Caputo derivative is investigated with initial-boundary conditions. Modified double Laplace decomposition method is used to find the exact solution of this equation.
Mahmut. Modanli +4 more
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A Second-Order Accurate Numerical Approximation for a Two-Sided Space-Fractional Diffusion Equation
Mathematics, 2023 In this paper, we investigate a practical numerical method for solving a one-dimensional two-sided space-fractional diffusion equation with variable coefficients in a finite domain, which is based on the classical Crank-Nicolson (CN) method combined with
Taohua Liu +3 more
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CONDITIONS FOR EXACT CAVALIERI ESTIMATION
Image Analysis & Stereology, 2014 Exact Cavalieri estimation amounts to zero variance estimation of an integral with systematic observations along a sampling axis. A sufficient condition is given, both in the continuous and the discrete cases, for exact Cavalieri sampling. The conclusions suggest improvements on the current stereological application of fractionator-type sampling.
Cruz-Orive, Luis M. +2 more
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Breakdown and asymptotic properties of resampled estimates [PDF]
, 1995 In this paper we study the breakdown and asymptotic properties of resampled t-estimates. We find that they retain the finite breakdown point of the exact estimator.
Blanco, Ana M., Adrover, Jorge
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