Results 41 to 50 of about 908 (194)
A Structure Topology Optimization With the First-Order Saddlepoint Approximation
IEEE Access, 2019 In practical engineering, uncertain loads usually cause the variations of structure stiffness to affect the security of the structure. To enhance the reliability and find the optimum structure in engineering, a topology optimization method is developed ...
Dongyan Shi, Hui Ma, Xiaoyan Teng
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The Stability of the Aggregate Loss Distribution
Risks, 2018 In this article we introduce the stability analysis of a compound sum: it consists of computing the standardized variation of the survival function of the sum resulting from an infinitesimal perturbation of the common distribution of the summands ...
Riccardo Gatto
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A Conditional Saddlepoint Approximation for Testing Problems [PDF]
, 1999 A saddlepoint approximation is provided for the distribution function of one M statistic conditional on another M statistic. Many interesting statistics based on dependent quantities (e.g., spacings, multinomial frequencies, rank differences) can be ...
Gatto, Riccardo, Jammalamadaka, S Rao
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Saddlepoint approximation for data in simplices: a review with new applications [PDF]
, 2019 This article provides a review of the saddlepoint approximation for a M-statistic of a sample of nonnegative random variables with fixed sum. The sample vector follows the multinomial, the multivariate hypergeometric, the multivariate Polya or the ...
Gatto, Riccardo, Riccardo Gatto
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Advances in Mechanical Engineering, 2020 In view of the lack of reliability research with correlated failure modes of the hoist disk shoes, the stochastic finite element method was used to analyze the reliability of multi-failure mode under emergency braking condition of disk shoe for deep well
Fengbin Ren +3 more
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Saddlepoint Approximation for Sensor Network Optimization [PDF]
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006 The task of detection optimization in sensor networks is hindered by the large computational cost of evaluating the performance criteria, e.g. the probability of making wrong decisions. We present an approach that avoids these obstacles by considering a rather accurate approximation to computing the detection performance.
Saeed A. Aldosari, José M. F. Moura
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Replica Wormholes and Quantum Hair
Fortschritte der Physik, Volume 74, Issue 1, January 2026.Abstract The recent applications of Euclidean path integrals to the black hole information problem are discussed. In calculations with replica wormholes as the next‐to‐leading order correction to the Gibbons–Hawking saddlepoint, the radiation density matrix approaches a pure state at late times, following the Page curve.
Xavier Calmet, Stephen D. H. Hsu
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On the Approximation of Saddlepoint Expansions in Statistics [PDF]
, 2018 The exact saddlepoint approximation as developed by Daniels [4], is an extremely accurate method for approximating probability distributions. Recent applications of the technique to densities of statistics of interest have been hindered by the ...
Lieberman, Offer
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Second order exponential asymptotic expansion for probabilistic load flow analysis
International Journal of Electrical Power & Energy SystemsDue to the inherent randomness in certain resources and load demands, load flow analysis must be performed using efficient and robust probabilistic methods to accurately capture power system uncertainties.
Hooman Basirat +2 more
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Saddlepoint Approximations in Statistics
The Annals of Mathematical Statistics, 1954 It is often required to approximate to the distribution of some statistic whose exact distribution cannot be conveniently obtained. When the first few moments are known, a common procedure is to fit a law of the Pearson or Edgeworth type having the same moments as far as they are given.
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