Results 21 to 30 of about 40,778 (262)

A New Conformal Map for Polynomial Chaos Applied to Direction-of-Arrival Estimation via UCA Root-MUSIC

open access: yesSensors, 2022
The effects of random array deformations on Direction-of-Arrival (DOA) estimation with root-Multiple Signal Classification for uniform circular arrays (UCA root-MUSIC) are characterized by a conformally mapped generalized Polynomial Chaos (gPC) algorithm.
Seppe Van Brandt   +3 more
doaj   +1 more source

Skew Generalized Secant Hyperbolic Distributions: Unconditional and Conditional Fit to Asset Returns

open access: yesAustrian Journal of Statistics, 2016
A generalization of the hyperbolic secant distribution which allows for both skewness and leptokurtosis was given by Morris (1982). Recently, Vaughan (2002) proposed another flexible generalization of the hyperbolic secant distribution which has a lot of
Matthias Fischer
doaj   +1 more source

Analysis of the Romanian Capital Market Using the Fractal Dimension

open access: yesFractal and Fractional, 2022
The surrounding reality can be analyzed due to the interaction of complex nonlinear dynamic systems. The article’s main objective is to develop and analyze the models that best describe the efficient behavior of the Romanian capital market that generated
Valentin Radu   +5 more
doaj   +1 more source

On the modulation instability analysis and deeper properties of the cubic nonlinear Schrödinger’s equation with repulsive δ-potential

open access: yesResults in Physics, 2021
This projected work applies the generalized exponential rational function method to extract the complex, trigonometric, hyperbolic, dark bright soliton solutions of the cubic nonlinear Schrödinger’s equation.
Yi-Xia Li   +4 more
doaj   +1 more source

Discriminating between the normal inverse Gaussian and generalized hyperbolic skew-t distributions with a follow-up the stock exchange data [PDF]

open access: yesYugoslav Journal of Operations Research, 2018
The statistical methods for the financial returns play a key role in measuring the goodness-of-fit of a given distribution to real data. As is well known, the normal inverse Gaussian (NIG) and generalized hyperbolic skew-t (GHST) distributions have been ...
Panahi Hanieh
doaj   +1 more source

A Monte Carlo Approach to Bitcoin Price Prediction with Fractional Ornstein–Uhlenbeck Lévy Process

open access: yesForecasting, 2022
Since its inception in 2009, Bitcoin has increasingly gained main stream attention from the general population to institutional investors. Several models, from GARCH type to jump-diffusion type, have been developed to dynamically capture the price ...
Jules Clément Mba   +2 more
doaj   +1 more source

On the Basel Liquidity Formula for Elliptical Distributions

open access: yesRisks, 2018
A justification of the Basel liquidity formula for risk capital in the trading book is given under the assumption that market risk-factor changes form a Gaussian white noise process over 10-day time steps and changes to P&L (profit-and-loss) are ...
Janine Balter, Alexander J. McNeil
doaj   +1 more source

Modeling Insurance Claim Distribution via Mixture Distribution and Copula [PDF]

open access: yesتحقیقات مالی, 2017
This paper analyses whether joint probability distribution function of losses due to different exposures covered under the same policy could be modeled in an appropriate manner via mixture distribution proposed and copula concept.
Saeed Bajalan   +2 more
doaj   +1 more source

Tail dependence coefficient of generalized hyperbolic distribution [PDF]

open access: yesJournal of Statistical Theory and Applications, 2017
The tail dependence describes the limiting proportion of exceeding one margin over a certain threshold given that the other margin has already exceeded that threshold. In this paper, we obtain the limit tail dependence coefficient for the generalized hyperbolic distribution.
Aleiyouka, Mohalilou   +2 more
openaire   +4 more sources

Statistical Analysis of the Exchange Rate of Bitcoin.

open access: yesPLoS ONE, 2015
Bitcoin, the first electronic payment system, is becoming a popular currency. We provide a statistical analysis of the log-returns of the exchange rate of Bitcoin versus the United States Dollar.
Jeffrey Chu   +2 more
doaj   +1 more source

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