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Optimization and Operations Research - Proceedings of a Conference Held at Oberwolfach, July 27-August 2, 1975 (English, German, Paperback, Softcover reprint of the original 1st ed. 1976) Loot Price: R1,544
Discovery Miles 15 440
Optimization and Operations Research - Proceedings of a Conference Held at Oberwolfach, July 27-August 2, 1975 (English,...

Optimization and Operations Research - Proceedings of a Conference Held at Oberwolfach, July 27-August 2, 1975 (English, German, Paperback, Softcover reprint of the original 1st ed. 1976)

W. Oettli, K Ritter

Series: Lecture Notes in Economics and Mathematical Systems, 117

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Loot Price R1,544 Discovery Miles 15 440 | Repayment Terms: R145 pm x 12*

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The variable metric algorithm is widely recognised as one of the most efficient ways of solving the following problem:- Locate x* a local minimum point n ( 1) of f(x) x E R Considerable attention has been given to the study of the convergence prop- ties of this algorithm especially for the case where analytic expressions are avai- ble for the derivatives g. = af/ax. i 1 *** n * (2) ~ ~ In particular we shall mention the results of Wolfe (1969) and Powell (1972), (1975). Wolfe established general conditions under which a descent algorithm will converge to a stationary point and Powell showed that two particular very efficient algorithms that cannot be shown to satisfy \,olfe's conditions do in fact converge to the minimum of convex functions under certain conditions. These results will be st- ed more completely in Section 2. In most practical problems analytic expressions for the gradient vector g (Equ. 2) are not available and numerical derivatives are subject to truncation error. In Section 3 we shall consider the effects of these errors on Wolfe's convergent prop- ties and will discuss possible modifications of the algorithms to make them reliable in these circumstances. The effects of rounding error are considered in Section 4, whilst in Section 5 these thoughts are extended to include the case of on-line fu- tion minimisation where each function evaluation is subject to random noise.

General

Imprint: Springer-Verlag
Country of origin: Germany
Series: Lecture Notes in Economics and Mathematical Systems, 117
Release date: February 1976
First published: 1976
Editors: W. Oettli • K Ritter
Dimensions: 244 x 170 x 18mm (L x W x T)
Format: Paperback
Pages: 318
Edition: Softcover reprint of the original 1st ed. 1976
ISBN-13: 978-3-540-07616-2
Languages: English • German
Categories: Books > Business & Economics > General
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LSN: 3-540-07616-6
Barcode: 9783540076162

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