نتایج جستجو برای: polak
تعداد نتایج: 361 فیلتر نتایج به سال:
This paper reports the study results on neural network training algorithm of numerical optimization techniques multiface detection in static images. The training algorithms involved are scale gradient conjugate backpropagation, conjugate gradient backpropagation with Polak-Riebre updates, conjugate gradient backpropagation with Fletcher-Reeves updates, one secant backpropagation and resilent ba...
http://www.jstor.org Velocity-Modulation Infrared Laser Spectroscopy of Molecular Anions Author(s): J. Owrutsky, N. Rosenbaum, L. Tack, M. Gruebele, M. Polak and R. J. Saykally Source: Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 324, No. 1578, The Spectroscopy of Molecular Ions (Jan. 26, 1988), pp. 97108 Published by: Royal Socie...
BY J. A. VAN DER VELDEN-, J. A. GROOT, G. FLIK, P. POLAK AND Z. I. KOLAR Department of Radiochemistry, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands, Department of Animal Physiology, Faculty of Science, University of Nijmegen, Nijmegen, The Netherlands, Department of Experimental Zoology, Faculty of Biology, University of Amsterdam, ...
Nitzan Rosenfeld1,8, Ranit Aharonov1,8, Eti Meiri1,8, Shai Rosenwald1,8, Yael Spector1, Merav Zepeniuk1, Hila Benjamin1, Norberto Shabes1, Sarit Tabak1, Asaf Levy1, Danit Lebanony1, Yaron Goren1, Erez Silberschein1, Nurit Targan1, Alex Ben-Ari1, Shlomit Gilad1, Netta Sion-Vardy2, Ana Tobar3, Meora Feinmesser3, Oleg Kharenko4, Ofer Nativ5, Dvora Nass6,7, Marina Perelman6,7, Ady Yosepovich6,7, Br...
This paper explores the convergence of nonlinear conjugate gradient methods without restarts, and with practical line searches. The analysis covers two classes of methods that are globally convergent on smooth, nonconvex functions. Some properties of the Fletcher-Reeves method play an important role in the first family, whereas the second family shares an important property with the Polak-Ribir...
in this paper the optimal control of boundary heat flux in a 2-d solid body with an arbitrary shape is performed in order to achieve the desired temperature distribution at a given time interval. the boundary of the body is subdivided into a number of components. on each component a time-dependent heat flux is applied which is independent of the others. since the thermophysical properties are t...
A hybrid method of the Polak-Ribière-Polyak (PRP) method and the Wei-Yao-Liu (WYL) method is proposed for unconstrained optimization problems, which possesses the following properties: i) This method inherits an important property of the well known PRP method: the tendency to turn towards the steepest descent direction if a small step is generated away from the solution, preventing a sequence o...
This paper benefitted from presentations at the American Law and Economics Association Meetings, the National Bureau of Economics Law & Economics Summer Session (2003), the NYU Law and Finance Workshop and the University of San Diego Law and Political Theory Workshop, and from comments by Barry Adler, Jennifer Arlen, Ian Ayres, Richard Brooks, Allen Ferrell, Michael Klausner, Alvin Klevorick, J...
Abstract A Polak–Ribière–Polyak (PRP) algorithm is one of the oldest and popular conjugate gradient algorithms for solving nonlinear unconstrained optimization problems. In this paper, we present a q -variant PRP ( -PRP) method which both sufficient conjugacy conditions are satisfied at every iteration. The proposed convergent globally with standard Wolfe strong conditions. numerical results sh...
Eosinophilic granuloma was formerly mistaken for “eosinophilic myeloma” (Finzi 1929) or for “osteomyelitis with eosinophilic reaction” (Schairer 1938). It was described as a new distinct entity by Otani and Ehrlich (1940) under the denomination solitary granuloma of bone and by Jaffe and Lichtenstein (1944) as eosinophilic granuloma ofbone. Farber(l94l) and Green and Farber (1942) showed that e...
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