Results 31 to 40 of about 9,392,573 (389)

Searching With Measurement Dependent Noise [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
Consider a target moving at a constant velocity on a unit-circumference circle, starting at an arbitrary location. To acquire the target, any region of the circle can be probed to obtain a noisy measurement of the target's presence, where the noise level increases with the size of the probed region.
Yonatan Kaspi   +2 more
openaire   +4 more sources

A link between Kendall’s τ, the length measure and the surface of bivariate copulas, and a consequence to copulas with self-similar support

open access: yesDependence Modeling, 2023
Working with shuffles, we establish a close link between Kendall’s τ\tau , the so-called length measure, and the surface area of bivariate copulas and derive some consequences.
Sánchez Juan Fernández   +1 more
doaj   +1 more source

A Note on the Maximum Difference Between Schweizer and Wolff's $\sigma$ and the Absolute Value of Spearman's $\rho$ [PDF]

open access: yesTransactions on Fuzzy Sets and Systems, 2022
In this note we correct an error on the possible maximum difference between the (measure of dependence) Schweizer and Wolff's sigma and the absolute value of the (measure of concordance) Spearman's rho given in [B. Schweizer and E. F.
Manuel Ubeda-Flores
doaj   +1 more source

Measurement of tanning dependence [PDF]

open access: yesJournal of the European Academy of Dermatology and Venereology, 2013
AbstractBackgroundIndoor tanning has been found to be addictive. However, the most commonly used tanning dependence measures have not been well validated.ObjectiveThe study's purpose was to explore the psychometric characteristics of and compare the modified Cut‐down, Annoyed, Guilty, Eye‐opener Scale (mCAGE), modified Diagnostic and Statistical Manual
Heckman, C. J.   +7 more
openaire   +2 more sources

Plug-in Estimation of Dependence Characteristics of Archimedean Copula via Bézier Curve

open access: yesRevstat Statistical Journal, 2023
This article introduces measurement of the dependence between variables with a dependence structure defined by Archimedean copulas. The estimation of the dependence measure, such as Kendall’s tau as well as the lower and upper tail dependence, is ...
Selim Orhun Susam   +1 more
doaj   +1 more source

Mutual Information and Dynamic Measure of Inaccuracy between Past Lifetime Distributions [PDF]

open access: yesThe Egyptian Statistical Journal, 2010
The mutual information is a measure of the dependence of two random variables. We propose an extension of this notion to measure the dependence between the inactivity lifetimes of two systems, given that both systems have failure at time t.
Mervat Mahdy Ramadan Mahdy
doaj   +1 more source

A Class of Association Measures for Categorical Variables Based on Weighted Minkowski Distance

open access: yesEntropy, 2019
Measuring and testing association between categorical variables is one of the long-standing problems in multivariate statistics. In this paper, I define a broad class of association measures for categorical variables based on weighted Minkowski distance.
Qingyang Zhang
doaj   +1 more source

Copula Correlation: An Equitable Dependence Measure and Extension of Pearson's Correlation [PDF]

open access: yes, 2013
In Science, Reshef et al. (2011) proposed the concept of equitability for measures of dependence between two random variables. To this end, they proposed a novel measure, the maximal information coefficient (MIC). Recently a PNAS paper (Kinney and Atwal,
A. Ding, Yi Li
semanticscholar   +1 more source

Hidden Markov Models as a Tool for the Assessment of Dependence of Phenomena of Economic Nature

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2018
The assessment of dependence between time series is a common dilemma, which is often solved by the use of the Pearson’s correlation coefficient. Unfortunately, sometimes, the results may be highly misleading.
Michał Bernardelli
doaj   +1 more source

Measurable Sensitivity for Semi-Flows

open access: yesMathematics, 2023
Sensitive dependence on initial conditions is a crucial characteristic of chaos. The concept of measurable sensitivity (MS) was introduced as a measure-theoretic version of sensitive dependence on initial conditions.
Weizhen Quan   +5 more
doaj   +1 more source

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