Results 1 to 10 of about 28,374 (231)
Study of partial and average conditional Kendall’s tau
When the interest is in studying conditional dependencies, and more precisely the strength of conditional dependencies, some kind of averaging over the conditioning random vector may be needed.
Gijbels Irène, Matterne Margot
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Background The functional impact of breathlessness is assessed using the modified Medical Research Council (mMRC) scale for chronic respiratory disease and with the New York Heart Association Functional Classification (NYHA) scale for heart failure.
Zainab Ahmadi +9 more
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Multiple Ordinal Correlation Based on Kendall’s Tau Measure: A Proposal
The joint analysis of various ordinal variables is necessary in many experimental studies within research fields such as sociology and psychology. Therefore, the necessary measures of multiple ordinal dependence must be easy to interpret and facilitate ...
Juan M. Muñoz-Pichardo +3 more
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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
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In this study, a new market representation from persistence homology, known as the L1-norm time series, is used and applied independently with three critical slowing down indicators [autocorrelation function at lag 1, variance, and mean for power ...
Mohd Sabri Ismail +3 more
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Validation of clinical frailty scale in Chinese translation
Background Identification of frailty is crucial to guide patient care for the elderly. The Clinical Frailty Scale (CFS) is a reliable, synthesis and clinical judgment-based tool. However, a validated Chinese version of CFS (CFS-C) is lacking.
Yi-Chun Chou +8 more
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Le tau de Kendall et deux variantes pour mesurer la cohérence de variation entre deux séries ordinales, leurs propriétés et leurs valeurs critiques "honnêtes" [PDF]
A measure of the consistency of variation in a bivariate series of ordinal data, Kendall's tau (\tau) has properties and exhibits distributional characteristics that are distinct from Pearson's r, each coefficient deserving its own interpretation.
Laurencelle, Louis
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Objective: To examine the correlation between plasma cerebral biomarkers (S100B and neuron-specific enolase (NSE)) and ultrasonographic optic-nerve-sheath-diameter (ONSD) in preeclampsia.
Gabrijela Brzan Simenc +4 more
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We introduce so-called "single-index copulae". They are semi-parametric conditional copulae whose parameter is an unknown "link" function of a univariate index only.
Fermanian, Jean-David, Lopez, Olivier
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Investigator’s Global Assessment of Chronic Prurigo: A New Instrument for Use in Clinical Trials
Chronic prurigo is a pruritic disease characterized by the development of pruriginous lesions due to scratching. The number of lesions is representative of the stage of the disease, while the presence of excoriations reflects the scratching activity. Aim
Claudia Zeidler +4 more
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