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Estimating a largest eigenvector by Lanczos and polynomial algorithms with a random start
Numerical Linear Algebra with Applications, 1998The authors study methods for estimating an eigenvector \(u\) corresponding to the largest eigenvalue \(\lambda _1\) of an \(n\times n\) large symmetric positive definite matrix \(A\). Denoting the \(\lambda _1\)-eigenspace by \(V\) and an approximation of \(u\) by \(u_k(b)\), where \(b\) stands for a random initial vector, they define the randomized ...
Zbigniew Leyk, Henryk Wozniakowski
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On modified schemes of systematic sampling with several random starts
Communications in Statistics - Theory and Methods, 1973A troublesome question in the design of systematic sampling is the choice of the number of random starts. A small number leads to an un-acceptaiily low precision of the estimated error of estimate, but a larger number may increase the error of estimate too much.
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Phaseless near-field techniques from a random starting point
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science, 2020In this paper we address the problem of reconstructing the far field radiated by focusing sources from the knowledge of square amplitude samples of the radiated field on more measurement lines in near zone. We show that it is possible to estimate the angular sector where the far field is significantly different from zero.
Rocco Pierri +2 more
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Improved random-starting method for the EM algorithm for finite mixtures of regressions
Behavior Research Methods, 2014Two methods for generating random starting values for the expectation maximization (EM) algorithm are compared in terms of yielding maximum likelihood parameter estimates in finite mixtures of regressions. One of these methods is ubiquitous in applications of finite mixture regression, whereas the other method is an alternative that appears not to have
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RANDOM-START PROTOCOL IS EFFECTIVE IN ONCOFERTILITY PATIENTS
Fertility and Sterility, 2022Nafiye Yilmaz +2 more
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Power calculation for randomized start design
Controlled Clinical Trials, 1998Yin M. Kean +2 more
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The Theory of Replicated Systematic Cluster Sampling with Random Start
Revue de l'Institut International de Statistique / Review of the International Statistical Institute, 1963L. Törnqvist, L. Tornqvist
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Inventory Policies for Non-Instantaneous Deteriorating Items With Random Start Time of Deterioration
Inventory Optimization, 2021Nita H Shah, Pratik H Shāh
exaly