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- Ian Barrodale, F. D. K. Roberts
- Commun. ACM
- 1974

Submittal of an algorithm for consideration for publication in Communications of the ACM implies unrestricted use of the algorithm within a computer is permissible. General permission to republish, but not for profit, all or part of this material is granted provided that ACM's copyright notice is given and that reference is made to the publication, to its… (More)

- Ian Barrodale, D. Skea, M. Berkley, R. Kuwahara, R. Poeckert
- Pattern Recognition
- 1993

- D. Skea, Ian Barrodale, R. Kuwahara, R. Poeckert
- Pattern Recognition
- 1993

- Ian Barrodale, C. Phillips
- ACM Trans. Math. Softw.
- 1975

DESCRIPTION The algorithm calculates a Chebyshev (or l~) solution to an m X n overdetermined system of linear equations Ax = b, i.e. given equations the subroutine determines a vector x* = ['xl*, x~*,..., x,,*'] r which minimizes the maximum absolute value of the residuals (1) The algorithm can be used to solve the linear Chebyshev data fitting problem.… (More)

- Ian Barrodale, F. D. K. Roberts
- ACM Trans. Math. Softw.
- 1980

- Ian Barrodale, R. Kuwahara, R. Poeckert, D. Skea
- Numerical Algorithms
- 1993

- N R Chapman, I Barrodale
- 2006

The trace measured in a marine seismic experiment can be expressed as the convolution of a source wavelet and a sparsely populated spike train which represents the impulse response of the medium. Deconvolu-tion processing using the II norm criterion has been suggested by Taylor, Banks & McCoy to obtain estimates of the impulse response from noisy traces.… (More)

- Fausto Milinazzo, Cedric A. Zala, Ian Barrodale
- IEEE Trans. Acoustics, Speech, and Signal…
- 1987

When analyzing linear systems of equations, the most important indicator of potential instability is the condition number of the matrix. For a convolution matrix W formed from a series w (where Wij defines the stabirity of the deconvolution process. For the larger con-volution matrices commonly encountered in practice, direct computation of the condition… (More)

- Cedric A. Zala, Ian Barrodale
- Adv. Comput. Math.
- 1999

- Ian Barrodale, F. D. K. Roberts, C. R. Hunt
- Comput. J.
- 1970