The element-wise weighted total least squares problem


Markovsky, I., Rastello, M., Premoli, P. and Van Huffel, S., Barlow, J.(ed.) (2006) The element-wise weighted total least squares problem Computational Statistics and Data Analysis, 51, (1), 181 -209.

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Description/Abstract

A new technique for parameter estimation is considered in a linear measurement error model AX approx B, A = A0 + tilde A, B = B0 + tilde B, with row-wise independent and non-identically distributed measurement errors tilde A, tilde B. The total least squares method yields an inconsistent estimate of the parameter X in this case. We formulate a modified total least squares problem, called element-wise weighted total least squares, which provides a consistent estimator, and propose two iterative algorithms for its solution. A local convergence and the rate of convergence of the algorithms is discussed. As a computationally cheap initial approximation we use the generalized total least squares estimate.

Item Type: Article
ISSNs: 0167-9473 (print)
Related URLs:
Keywords: Total least squares, Multivariate errors-in-variables model, Unequally sized errors, Non-convex optimization, Re-weighted least-squares
Organisations: Southampton Wireless Group
ePrint ID: 263293
Date :
Date Event
January 2006Published
Date Deposited: 06 Jan 2007
Last Modified: 17 Apr 2017 19:57
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/263293

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