Results 31 to 40 of about 65,124 (266)
Hybrid Model-Based BESS Sizing and Control for Wind Energy Ramp Rate Control
Energies, 2022 This paper presents a hybrid model constituting dynamic smoothing technique and particle swarm optimization techniques to optimally size and control battery energy storage systems for wind energy ramp rate control and power system frequency performance ...
Abebe Tilahun Tadie +2 more
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The Smooth Power of the 'Neandertal Method'
The Mathematical IntelligencerAbstract We describe an algorithmic method to transform a Euclidean wallpaper pattern into a \emph{Circle Limit}-style picture à la Escher. The design goals for the method are to be mathematically sound, aesthetically pleasing and fast to compute.
Aaron Montag +2 more
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The Power of First-Order Smooth Optimization for Black-Box Non-Smooth Problems
, 2022 Gradient-free/zeroth-order methods for black-box convex optimization have been extensively studied in the last decade with the main focus on oracle calls complexity. In this paper, besides the oracle complexity, we focus also on iteration complexity, and propose a generic approach that, based on optimal first-order methods, allows to obtain in a black ...
Gasnikov, Alexander +8 more
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Universal Regularization Methods: Varying the Power, the Smoothness and the Accuracy [PDF]
SIAM Journal on Optimization, 2019 Adaptive cubic regularization methods have emerged as a credible alternative to linesearch and trust-region for smooth nonconvex optimization, with optimal complexity amongst second-order methods. Here we consider a general/new class of adaptive regularization methods, that use first- or higher-order local Taylor models of the objective regularized by ...
Cartis, C, Gould, N, Toint, P
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A Smooth Transition from Powerlessness to Absolute Power
Journal of Artificial Intelligence Research, 2013 We study the phase transition of the coalitional manipulation problem for generalized scoring rules. Previously it has been shown that, under some conditions on the distribution of votes, if the number of manipulators is o(sqrt{n}), where n is the number of voters, then the probability that a random profile is manipulable by the coalition goes to zero ...
Elchanan Mossel +2 more
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Frontiers in Energy Research, 2022 Hydrogen production using solar energy is an important way to obtain hydrogen energy. However, the inherent intermittent and random characteristics of solar energy reduce the efficiency of hydrogen production. Therefore, it is necessary to add an energy
Daohong Wei +5 more
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Enhancing Grid Stability in Microgrid Systems with Vehicle-to-Grid Support and EDLC Supercapacitors
BatteriesGrid stability in microgrids represents a critical challenge, particularly with the increasing integration of variable renewable energy sources and the loss of systematic inertia.
Adrián Criollo +4 more
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Active power control strategy of DFIGs in flexible interconnected distribution network
Energy Reports, 2023 In the development of new-type power system, the flexible interconnected distribution network becomes a better inclination. With the continuous increase of wind power generation in the flexible interconnected distribution network, the frequency stability
Yubo Yuan +6 more
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Approximation power of smooth bivariate PP functions
Mathematische Zeitschrift, 1988 Bivariate piecewise polynomials in \(C^{\rho}\) of degree \(\leq k\) on some triangulation \(\Delta\) are shown to approximation to smooth functions to within \(| \Delta | ^{k+1}\) if \(k>3\rho +1\). The argument makes essential use of the Bernstein-Bézier polynomial form.
Boor, C. de, Höllig, K.
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Power Series and Smooth Functions Equivalent to a Polynomial [PDF]
Proceedings of the American Mathematical Society, 1986 An algebraic criterion is given for a power series in n n variables over a field of characteristic 0 to be equivalent to a ...
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