Suchergebnisse - UOBYQA algorithm
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CONDOR, a new parallel, constrained extension of Powell's UOBYQA algorithm: Experimental results and comparison with the DFO algorithm
ISSN: 0377-0427, 1879-1778Veröffentlicht: Amsterdam Elsevier B.V 01.09.2005Veröffentlicht in Journal of computational and applied mathematics (01.09.2005)“… This paper presents an algorithmic extension of Powell's UOBYQA algorithm ( Unconstrained Optimization BY Quadratical Approximation …”
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Adaptation of the Uobyqa Algorithm for Noisy Functions
ISBN: 1424405009, 9781424405008ISSN: 0891-7736Veröffentlicht: IEEE 01.12.2006Veröffentlicht in Proceedings of the 2006 Winter Simulation Conference (01.12.2006)“… In this paper, we modify Powell's UOBYQA algorithm to handle those real-world simulation problems …”
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Adaptation of the UOBYQA algorithm for noisy functions
ISBN: 9781424405015, 1424405017Veröffentlicht: Winter Simulation Conference 03.12.2006Veröffentlicht in Proceedings of the 38th conference on Winter simulation (03.12.2006)“… In this paper, we modify Powell's UOBYQA algorithm to handle those real-world simulation problems …”
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Adaptation of the UOBYQA algorithm for noisy functions
ISBN: 9781424405015, 1424405017Veröffentlicht: 01.01.2006Veröffentlicht in Proceedings of the 2006 Winter Simulation Conference (01.01.2006)“… In this paper, we modify Powell's UOBYQA algorithm to handle those real-world simulation problems …”
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UOBYQA: unconstrained optimization by quadratic approximation
ISSN: 0025-5610, 1436-4646Veröffentlicht: Heidelberg Springer 01.05.2002Veröffentlicht in Mathematical programming (01.05.2002)Volltext
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Dual Loop line-focusing solar power plants with supercritical Brayton power cycles
ISSN: 0360-3199, 1879-3487Veröffentlicht: Elsevier Ltd 13.07.2017Veröffentlicht in International journal of hydrogen energy (13.07.2017)“… This study is focused on proposing the combination of a Dual Loop solar field, with Dowtherm A and the Solar Salt as heat transfer fluids in parabolic or …”
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New text comparison between CO2 and other supercritical working fluids (ethane, Xe, CH4 and N2) in line- focusing solar power plants coupled to supercritical Brayton power cycles
ISSN: 0360-3199, 1879-3487Veröffentlicht: Elsevier Ltd 13.07.2017Veröffentlicht in International journal of hydrogen energy (13.07.2017)“… This study is focused on comparing four supercritical fluids: Ethane, Xenon, Methane and Nitrogen, as possible alternative to supercritical Carbon Dioxide …”
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PDFO: a cross-platform package for Powell’s derivative-free optimization solvers
ISSN: 1867-2949, 1867-2957Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2024Veröffentlicht in Mathematical programming computation (01.12.2024)“… The late Professor M. J. D. Powell devised five trust-region methods for derivative-free optimization, namely COBYLA, UOBYQA, NEWUOA, BOBYQA, and LINCOA …”
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Model-Based Derivative-Free Optimization Methods and Analysis of Stochastic Nonlinear Optimization
ISBN: 9798535531786Veröffentlicht: ProQuest Dissertations & Theses 01.01.2021“… Powell in his algorithms such as UOBYQA and NEWUOA. An essential idea from these algorithms is known as poisedness …”
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Combining Optical and X-ray Observations of Galaxy Clusters to Constrain Cosmological Parameters
ISSN: 2331-8422Veröffentlicht: Ithaca Cornell University Library, arXiv.org 28.11.2010Veröffentlicht in arXiv.org (28.11.2010)“… Galaxy clusters have their unique advantages for cosmology. Here we collect a new sample of 10 lensing galaxy clusters with X-ray observations to constrain …”
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Watershed calibration using multistart local optimization and evolutionary optimization with radial basis function approximation
ISSN: 0262-6667, 2150-3435Veröffentlicht: Taylor & Francis Group 01.06.2007Veröffentlicht in Hydrological sciences journal (01.06.2007)“… Calibration of computationally expensive watershed models is more feasible with algorithms that require fewer simulations …”
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Boosters: A Derivative-Free Algorithm Based on Radial Basis Functions
ISSN: 0228-6203, 1925-7082Veröffentlicht: Calgary Taylor & Francis 01.01.2009Veröffentlicht in International journal of modelling & simulation (01.01.2009)“… We have tested the algorithm against the best state-of-the-art methods (UOBYQA, NEWUOA, DFO). The tests on the problems from the CUTEr collection show that BOOSTERS is performing very well on medium-size problems …”
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BOOSTERS: A DERIVATIVE-FREE ALGORITHM BASED ON RADIAL BASIS FUNCTIONS
ISSN: 1925-7082, 0228-6203Veröffentlicht: 2009Veröffentlicht in International journal of modelling & simulation (2009)“… We have tested the algorithm against the best state-of-the-art methods (UOBYQA, NEWUOA, DFO). The tests on the problems from the CUTEr collection show that BOOSTERS is performing very well on medium-size problems …”
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A family-based likelihood ratio test for general pedigree structures that allows for missing data and genotyping errors
ISBN: 9780549914341, 054991434XVeröffentlicht: ProQuest Dissertations & Theses 01.01.2007“… The purpose of this work is to design a likelihood ratio test (LRT) that uses the information of both affected and unaffected individuals from a general …”
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Variable-Number Sample-Path Optimization
ISSN: 0025-5610, 1436-4646Veröffentlicht: Berlin/Heidelberg Springer-Verlag 01.03.2009Veröffentlicht in Mathematical programming (01.03.2009)“… In this paper, we describe a new variant of Powell’s unconstrained optimization by quadratic approximation (UOBYQA …”
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A Stochastic Radial Basis Function Method for the Global Optimization of Expensive Functions
ISSN: 1091-9856, 1526-5528, 1091-9856Veröffentlicht: Linthicum INFORMS 01.11.2007Veröffentlicht in INFORMS journal on computing (01.11.2007)“… We introduce a new framework for the global optimization of computationally expensive multimodal functions when derivatives are unavailable. The proposed …”
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About the Performance of a Calculus-Based Approach to Building Model Functions in a Derivative-Free Trust-Region Algorithm
ISSN: 1999-4893, 1999-4893Veröffentlicht: Basel MDPI AG 01.02.2023Veröffentlicht in Algorithms (01.02.2023)“… This paper examines a calculus-based approach to building model functions in a derivative-free algorithm …”
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Bayesian Calibration and Uncertainty Analysis for Computationally Expensive Models Using Optimization and Radial Basis Function Approximation
ISSN: 1061-8600, 1537-2715Veröffentlicht: Taylor & Francis 01.06.2008Veröffentlicht in Journal of computational and graphical statistics (01.06.2008)“… We presenta Bayesian approach to model calibration when evaluation of the model is computationally expensive. Here, calibration is a nonlinear regression …”
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Parallel radial basis function methods for the global optimization of expensive functions
ISSN: 0377-2217, 1872-6860Veröffentlicht: Amsterdam Elsevier B.V 16.10.2007Veröffentlicht in European journal of operational research (16.10.2007)“… –171] (CORS-RBF). We modify these algorithms so that they can generate multiple points for simultaneous evaluation in parallel …”
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