نتایج جستجو برای: polak
تعداد نتایج: 361 فیلتر نتایج به سال:
Based on the secant condition often satisfied by quasi-Newton methods, two new versions of the Hestenes-Stiefel (HS) nonlinear conjugate gradient method are proposed, which are descent methods even with inexact line searches. The search directions of the proposed methods have the form dk = −θk gk + β H S k dk−1, or dk = −gk + β H S k dk−1 + θk yk−1. When exact line searches are used, the propos...
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Copyright C 2015 by Korean Society of Spine Surgery This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Asian Spine Journal • pISSN 1976-1902 e...
We describe regularization tools for training large-scale artiicial feed-forward neural networks. In a companion paper (in this issue) we give the basic ideas and some theoretical results regarding the Gauss-Newton method compared to other methods such as the Levenberg-Marquardt method applied on small and medium size problems. We propose algorithms that explicitly use a sequence of Tikhonov re...
Nature ofphysical problem A lot of problems in physics, chemistry, applied mathematics as well as in engineering and in other fields, are quite often reduced tominimizing a function of several variables. MERLIN is a system designed to minimize a multidimensional function. Method of solution Six algorithms are implemented. Three of them make use of the function’s gradient and hence are suitable ...
Michael S. Lawrence*, Petar Stojanov*, Paz Polak*, Gregory V. Kryukov, Kristian Cibulskis, Andrey Sivachenko, Scott L. Carter, Chip Stewart, CraigH.Mermel, StevenA.Roberts, AdamKiezun, Peter S.Hammerman, AaronMcKenna, Yotam Drier, Lihua Zou, Alex H. Ramos, Trevor J. Pugh, Nicolas Stransky, Elena Helman, Jaegil Kim, Carrie Sougnez, Lauren Ambrogio, Elizabeth Nickerson, Erica Shefler, Maria L. Co...
In this paper, the problem of reconstructing the electromagnetic properties of unknown scatterers is treated by means of a spatial-domain technique. This technique combines the finite-element method and the Polak–Ribière nonlinear conjugate gradient optimization algorithm. The forward scattering problem is solved via the finite-element method, while the inversion is implemented by minimizing a ...
Tawaw, or welcome, to this special digital edition of the Language and Literacy journal. This issue is a direct result scholarship shared by participants development management 18th annual, but first digital, Researchers Canada (LLRC/ACCLL) pre-conference co-chairs[1] (Jing Jin, Lara Polak, Velvalee Georges, Yina Liu). The theme, Entanglements & Relationality: Time, Space, Place, Identity, ...
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