Taschenbuch. Etat : Gut. nice book ex Library Sprache: Englisch Gewicht in Gramm: 550 Auflage: Softcover reprint of the original 1st ed. 1976. N� de r�f. du vendeur 338640

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Optimization and Operations Research : Proceedings of a Conference Held at Oberwolfach, July 27?august 2, 1975

Oettli, W. (EDT); Ritter, K. (EDT)

Edit� par Springer, 1976

ISBN 10 : 3540076166 ISBN 13 : 9783540076162

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Optimization and Operations Research: Proceedings of a Conference held at Oberwolfach, July 27 - August 2, 1975 (Lecture Notes in Economics and Mathematical Systems) (English and German Edition)

Oettli, W. (Editor) / Ritter, K. (Editor)

Edit� par Springer, 1976

ISBN 10 : 3540076166 ISBN 13 : 9783540076162

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Paperback. Etat : Brand New. rep blg edition. 328 pages. German language. 9.60x6.69x0.74 inches. In Stock. N� de r�f. du vendeur x-3540076166

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Optimization and Operations Research

. Ed(s): Oettli, W.; Ritter, K.

Edit� par Springer-Verlag Berlin and Heidelberg GmbH & Co. KG, 1976

ISBN 10 : 3540076166 ISBN 13 : 9783540076162

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Etat : New. Editor(s): Oettli, W.; Ritter, K. Series: Lecture Notes in Economics and Mathematical Systems. Num Pages: 322 pages, 8 black & white illustrations, biography. Category: (P) Professional & Vocational. Dimension: 244 x 170 x 18. Weight in Grams: 567. . 1976. Softcover reprint of the original 1st ed. 1976. Paperback. . . . . N� de r�f. du vendeur V9783540076162

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Optimization and Operations Research : Proceedings of a Conference Held at Oberwolfach, July 27�August 2, 1975

K. Ritter

Edit� par Springer Berlin Heidelberg, 1976

ISBN 10 : 3540076166 ISBN 13 : 9783540076162

Neuf Taschenbuch

Vendeur : AHA-BUCH GmbH, Einbeck, Allemagne

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Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - 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. N� de r�f. du vendeur 9783540076162

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