Results 61 to 70 of about 5,976,249 (348)
On the Skew-Normal-Cauchy Distribution
Communications in Statistics - Theory and Methods, 2010 In this article, we study further properties of a skew normal distribution, called the skew-normal-Cauchy (SNC) distribution by Nadarajah and Kotz (2003). A stochastic representation is obtained which allows alternative derivations for moments, moments generating function, and skewness and kurtosis coefficients.
Arrue, Jaime +3 more
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Cauchy Single-Valued Neutrosophic Numbers and Their Applications in MAGDM [PDF]
Neutrosophic Sets and Systems, 2022 The neutrosophic sets and numbers have an important role in modeling the problems. Recently, studies on neutrosophic numbers and single-valued neutrosophic numbers which is a subclass of neutrosophic numbers have increased, rapidly.
Faruk Karaaslan, Fatih Karamaz
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Evidence for a normal distribution of normalized gains
Physical Review Physics Education Research, 2023 Recently Burkholder et al. argued that class normalized gains over the entire population of courses is approximated by a Cauchy distribution, not by a normal distribution, and therefore should not be used to compare different classes because means and ...
Vincent P. Coletta
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European Journal of Mathematical Analysis, 2023 The paper estimates the Kolmogorov distance between the distribution of the normalized maximum likelihood estimator of the positive drift parameter in the nonergodic Ornstein-Uhlenbeck process and the standard Cauchy distribution and shows exponential ...
Jaya P. N. Bishwal
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Isotropic cosmological singularities 3: The Cauchy problem for the inhomogeneous conformal Einstein-Vlasov equations [PDF]
, 1999 We consider the conformal Einstein equations for massless collisionless gas cosmologies which admit an isotropic singularity. It is shown that the Cauchy problem for these equations is well-posed with data consisting of the limiting particle distribution
Anguige, K.
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Advanced Cauchy Mutation for Differential Evolution in Numerical Optimization
IEEE Access, 2020 Among many evolutionary algorithms, differential evolution (DE) has received much attention over the last two decades. DE is a simple yet powerful evolutionary algorithm that has been used successfully to optimize various real-world problems.
Tae Jong Choi +2 more
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On the half-Cauchy prior for a global scale parameter [PDF]
, 2010 This paper argues that the half-Cauchy distribution should replace the inverse-Gamma distribution as a default prior for a top-level scale parameter in Bayesian hierarchical models, at least for cases where a proper prior is necessary.
Polson, Nicholas G., Scott, James G.
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A note on invariance of the Cauchy and related distributions [PDF]
Statistics & Probability Letters, 2020 It is known that if $f$ is an analytic self map of the complex upper half-plane which also maps $\mathbb{R}\cup\{\infty\}$ to itself, and $f(i)=i$, then $f$ preserves the Cauchy distribution. This note concerns three results related to the above fact.
Wooyoung Chin, Paul Jung, Greg Markowsky
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Asymptotic behaviour of non-isotropic random walks with heavy tails
Modern Stochastics: Theory and Applications, 2017 A random flight on a plane with non-isotropic displacements at the moments of direction changes is considered. In the case of exponentially distributed flight lengths a Gaussian limit theorem is proved for the position of a particle in the scheme of ...
Mark Kelbert, Enzo Orsingher
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Lévy Flights Diffusion with Drift in Heterogeneous Membranes
Membranes, 2023 The modelling of diffusion in membranes is essential to understanding transport processes through membranes, especially when it comes to improving process efficiency. The purpose of this study is to understand the relationship between membrane structures,
Anna Strzelewicz +2 more
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