Results 151 to 160 of about 2,718,811 (196)
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Copula Functions for Residual Dependency
Psychometrika, 2007Most item response theory models are not robust to violations of conditional independence. However, several modeling approaches (e.g., conditioning on other responses, additional random effects) exist that try to incorporate local item dependencies, but they have some drawbacks such as the nonreproducibility of marginal probabilities and resulting ...
Braeken, Johan +2 more
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Kendall distribution functions and associative copulas
Fuzzy Sets and Systems, 2009zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Roger B. Nelsen +3 more
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Copulas and Self-affine Functions
2013We characterize self-affine functions whose graphs are the support of a copula using the fact that the functions defined on the unit interval whose graphs support a copula are those that are Lebesgue-measure-preserving. This result allows the computation of the Hausdorff, packing, and box-counting dimensions.
Enrique de Amo +2 more
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Measure-Preserving Functions and the Independence Copula
Mediterranean Journal of Mathematics, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
de Amo, Enrique +2 more
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2017
Copula functions are a group of multivariate distribution functions that join the marginal distribution of multiple variables. They have been used in different fields of science and engineering during the past decades. The main advantage of copulas over other multivariate distribution functions is their flexible structure in choosing marginal ...
Shahrbanou Madadgar, Hamid Moradkhani
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Copula functions are a group of multivariate distribution functions that join the marginal distribution of multiple variables. They have been used in different fields of science and engineering during the past decades. The main advantage of copulas over other multivariate distribution functions is their flexible structure in choosing marginal ...
Shahrbanou Madadgar, Hamid Moradkhani
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On the relationship between modular functions and copulas
Fuzzy Sets and Systems, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bernard De Baets +3 more
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The copula function of pronouns
Lingua, 1983Abstract This paper presents evidence from Egyptian Arabic to show that in the absence of a copula from a language, the language may use pronouns to perform copula functions. The evidence is based on the behavior of pronouns with respect to Negative Placement and their use in equational sentences.
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On a new construction of 1-Lipschitz aggregation functions, quasi-copulas and copulas
Fuzzy Sets and Systems, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anna Kolesárová +2 more
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Copula Functions in Model Based Clustering
2006Model based clustering is common approach used in cluster analysis. Here each cluster is characterized by some kind of model, for example — multivariate distribution, regression, principal component etc. One of the most well known approaches in model based clustering is the one proposed by Banfield and Raftery (1993), where each class is described by ...
Krzysztof Jajuga, Daniel Papla
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d-Dimensional dependence functions and Archimax copulas
Fuzzy Sets and Systems, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Radko Mesiar, Vladimír Jágr
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