Results 21 to 30 of about 132,311 (233)

Statistical Arbitrage in Emerging Markets: A Global Test of Efficiency

open access: yesMathematics, 2021
In this paper, we use a statistical arbitrage method in different developed and emerging countries to show that the profitability of the strategy is based on the degree of market efficiency.
Karen Balladares   +3 more
doaj   +1 more source

Portfolio Optimization at Damascus Securities Exchange: A Fractal Analysis Approach

open access: yesCogent Economics & Finance, 2023
This paper adopts the fractal analysis approach, specifically a Hurst exponent index in portfolio optimization at the Damascus Securities Exchange (DSE).
Kinda Dooba, Sulaiman Mouselli
doaj   +1 more source

The identification of the long-term dependence in the sale of commodities [PDF]

open access: yesModern Management Review
The paper presents the algorithm and interpretation of Hurst exponent. It has been used during the analysis of sales in selected enterprise. The Hurst exponent was calculated empirically and theoretically, then the data was compared to verify if the ...
Krystyna Skoczylas
doaj   +1 more source

Review Article: On the relation between the seismic activity and the Hurst exponent of the geomagnetic field at the time of the 2000 Izu swarm [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2013
Many papers document the observation of earthquake-related precursory signatures in geomagnetic field data. However, the significance of these findings is ambiguous because the authors did not adequately take into account that these signals could have ...
F. Masci, J. N. Thomas
doaj   +1 more source

Classifying Images of Two-Dimensional Fractional Brownian Motion through Deep Learning and Its Applications

open access: yesApplied Sciences, 2023
Two-dimensional fractional Brownian motion (2D FBM) is an effective model for describing natural scenes and medical images. Essentially, it is characterized by the Hurst exponent (H) or its corresponding fractal dimension (D).
Yen-Ching Chang, Jin-Tsong Jeng
doaj   +1 more source

HURST EXPONENT ESTIMATES ON SMALL SAMPLES: THE SIMPLEST VERSION OF FEDER'S NON-LINEAR METHOD ERROR COMPENSATOR FOR MODELING ECONOMIC AND BIOMETRIC DATA

open access: yesНадежность и качество сложных систем, 2023
Background. Currently, the Hurst exponent is quite easily interpreted in relation to biometric, medical and economic data, but it is customary to evaluate it on large samples.
Aleksandr I. Ivanov   +2 more
doaj   +1 more source

Determination of the Hurst exponent by use of wavelet transforms [PDF]

open access: yesPhysical Review E, 1998
10 pages RevTeX, 13 Postscript figures.
Simonsen, Ingve   +2 more
openaire   +2 more sources

Use of fractal analysis to evaluate the surface quality of agricultural machinery parts

open access: yesBIO Web of Conferences, 2020
The research of the determination of the fractal characteristics of the surface of a material proposes the use of a stationary profilograph and a computer program for calculating the Hurst exponent.
Bavykin Oleg   +4 more
doaj   +1 more source

Complexity signatures in the geomagnetic H component recorded by the Tromsø magnetometer (70° N, 19° E) over the last quarter of a century [PDF]

open access: yesNonlinear Processes in Geophysics, 2014
Solar disturbances, depending on the orientation of the interplanetary magnetic field, typically result in perturbations of the geomagnetic field as observed by magnetometers on the ground.
C. M. Hall
doaj   +1 more source

A Climate-Mathematical Clustering of Rainfall Stations in the Río Bravo-San Juan Basin (Mexico) by Using the Higuchi Fractal Dimension and the Hurst Exponent

open access: yesMathematics, 2021
When conducting an analysis of nature’s time series, such as meteorological ones, an important matter is a long-range dependence to quantify the global behavior of the series and connect it with other physical characteristics of the region of study.
Francisco Gerardo Benavides-Bravo   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy