Results 21 to 30 of about 168,286 (265)
Stochastic permutation ordering watershed [PDF]
2021 29th European Signal Processing Conference (EUSIPCO), 2021 The stochastic watershed is a morphological approach to segmentation that repeats the application of a seeded watershed from series of uniform random markers. The obtained watershed boundaries are combined to construct a probability density function. We propose an alternative approach called stochastic permutation ordering watershed.
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Stochastic Orderings of the Idle Time of Inactive Standby Systems
Mathematics, 2023 In this paper, we consider a failed cold standby system and obtain stochastic bounds on the idle time of such systems. We state and prove that if the last spare in the system is exponentially distributed and if the components have log-concave lifetime ...
Mansour Shrahili, Mohamed Kayid
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Trading Cryptocurrencies Using Second Order Stochastic Dominance
Mathematics, 2021 This research is the first attempt to customize a trading system that is based on second order stochastic dominance (SSD) to five known cryptocurrencies’ daily data: Bitcoin, Ethereum, XRP, Binance Coin, and Cardano.
Gil Cohen
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On stochastic orders defined by other stochastic orders and transformations of probabilities
Mathematical Inequalities & Applications, 2022 This research is supported by the Spanish Ministry of Science and Innovation (Grants MTM2015-63971-P, MTM2017-83506-C2-2-P and MTM-PID2019-104486GB-I00) and Principado de Asturias (Grants FC-GRUPIN-IDI/2018/000132 and FC-GRUPIN-IDI/2018/000193). *Corresponding author.
López Díaz, María Concepción +2 more
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Some Order Preserving Inequalities for Cross Entropy and Kullback–Leibler Divergence
Entropy, 2018 Cross entropy and Kullback⁻Leibler (K-L) divergence are fundamental quantities of information theory, and they are widely used in many fields. Since cross entropy is the negated logarithm of likelihood, minimizing cross entropy is equivalent to ...
Mateu Sbert +3 more
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Proportional Itô–Doob Stochastic Fractional Order Systems
Mathematics, 2023 In this article, we discuss the existence and uniqueness of proportional Itô–Doob stochastic fractional order systems (PIDSFOS) by using the Picard iteration method. The paper provides new results using the proportional fractional integral and stochastic
Abdellatif Ben Makhlouf +4 more
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Convexification of stochastic ordering. [PDF]
, 2004 In this paper sets defined by first order stochastic dominance constraints are considered. The authors impose rather general assumptions in order to prove that in the space of integrable random variables the closed convex hull of the set of the usual stochastic ordering relation is equal to the set defined by the second order stochastic dominance ...
Darinka Dentcheva, Andrzej Ruszczynski
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The Improved Stochastic Fractional Order Gradient Descent Algorithm
Fractal and Fractional, 2023 This paper mainly proposes some improved stochastic gradient descent (SGD) algorithms with a fractional order gradient for the online optimization problem.
Yang Yang, Lipo Mo, Yusen Hu, Fei Long
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Stochastically ordered multiple regression [PDF]
Biostatistics, 2010 In various application areas, prior information is available about the direction of the effects of multiple predictors on the conditional response distribution. For example, in epidemiology studies of potentially adverse exposures and continuous health responses, one can typically assume a priori that increasing the level of an exposure does not lead ...
Bornkamp, Björn +2 more
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Cesaro Supermodular Order and Archimedean Copulas [PDF]
Journal of Sciences, Islamic Republic of Iran, 2015 In this paper, we introduce a new kind of order, Cesaro supermodular order, which includes supermodular order and stochastic order. For this new order, we show that it almost fulfils all desirable properties of a multivariate positive dependence order ...
H.R. Nili Sani, M. Amini, M. Khanjari
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