Results 11 to 20 of about 9,234 (266)

Lorenz Curve-Based Entropy Thresholding on Circular Histogram

open access: yesIEEE Access, 2020
Circular histogram thresholding is a new threshold selection method in color image segmentation. However, the method of the existing circular histogram thresholding based on the Otsu Criteria lacks the generality of using the circular histogram. In order
Chao Kang, Chengmao Wu, Jiulun Fan
doaj   +1 more source

Lorenz-generated bivariate Archimedean copulas

open access: yesDependence Modeling, 2020
A novel generating mechanism for non-strict bivariate Archimedean copulas via the Lorenz curve of a non-negative random variable is proposed. Lorenz curves have been extensively studied in economics and statistics to characterize wealth inequality and ...
Fontanari Andrea   +2 more
doaj   +1 more source

Asymptotic Results in Broken Stick Models: The Approach via Lorenz Curves

open access: yesMathematics, 2020
A stick of length 1 is broken at random into n smaller sticks. How much inequality does this procedure produce? What happens if, instead of breaking a stick, we break a square? What happens asymptotically?
Gheorghiță Zbăganu
doaj   +1 more source

Income inequality measures and the middle class [PDF]

open access: yesSHS Web of Conferences, 2021
We study how the presence of the middle class in the sense of Gevorgyan-Malykhin affects the value of income inequality measures including the Gini coefficient J and the Hoover index H.
Pavlov Oleg I., Pavlova Olga Yu.
doaj   +1 more source

Group averaging and the Gini deviation

open access: yesRUDN Journal of Economics, 2021
It is known that partitioning a society into groups with subsequent averaging in each group decreases the Gini coefficient. The resulting Lorenz function is piecewise linear.
Oleg I. Pavlov, Olga Yu. Pavlova
doaj   +1 more source

Carbon Lorenz curves [PDF]

open access: yesResource and Energy Economics, 2010
The purpose of this paper is twofold. First, it exhibits that standard tools in themeasurement of income inequality, such as the Lorenz curve and the Gini-index,can successfully be applied to the issues of inequality measurement of carbonemissions and the equity of abatement policies across countries.
openaire   +5 more sources

Assessing spatial inequality in cancer service access in regional areas

open access: yesCogent Public Health, 2022
This paper applies economic concepts from measuring income inequality to an exercise in assessing spatial inequality in cancer service access in regional areas. We propose a mathematical model for accessing chemotherapy among local government areas (LGAs)
Ka C. Chan   +2 more
doaj   +1 more source

Cascade of Invariant Curve Doubling Bifurcations and Quasi-Periodic Hénon Attractor in the Discrete Lorenz-84 Model [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2020
Background and Objectives: Chaotic behavior is one of the fundamental properties of nonlinear dynamical systems, including maps. Chaos can be most easily and reliably diagnosed using the largest Lyapunov exponent, which will be positive for the chaotic ...
Popova, Elena Sergeevna   +2 more
doaj   +1 more source

Ranking intersecting Lorenz curves [PDF]

open access: yesSocial Choice and Welfare, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +9 more sources

An alternative method to test scale invariance

open access: yesMethodsX, 2020
We introduce an alternative method that is simple and can be used to test scale invariance or self-similarity in any types of data, irrespective of their distributions.
Thitithep Sitthiyot   +2 more
doaj   +1 more source

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