Results 1 to 10 of about 459 (133)
Dose-finding based on bivariate efficacy-toxicity outcome using Archimedean Copula. [PDF]
PLoS ONE, 2013 In dose-finding clinical study, it is common that multiple endpoints are of interest. For instance, efficacy and toxicity endpoints are both primary in clinical trials.
Yuxi Tao +5 more
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Copulas for Covariate Simulation in Pharmacometrics. [PDF]
CPT Pharmacometrics Syst PharmacolABSTRACT Patient‐specific covariates are commonly incorporated in pharmacometric and quantitative system pharmacology models to predict differences in pharmacokinetic or pharmacodynamic profiles between patients. When simulating new virtual populations of patients, generating realistic covariate sets that accurately reflect the correlation structures ...
Guo Y, Guo T, van Hasselt JGC, Zwep LB.
europepmc +2 more sources
Performance evaluation for medical alliance in China based on a novel multi-attribute group decision-making technique with Archimedean copulas-based Hamy operators and extended best-worst method [PDF]
Digital Health, 2023 Background Medical alliance plays an important role in promoting resource sharing, optimizing the allocation of medical resources, establishing a hierarchical diagnosis and treatment system featuring primary diagnosis at the grassroots level, a two-way ...
Yuping Xing, Jun Wang
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Permutation Tests Based on the Copula-Graphic Estimator and Their Use for Survival Tree Construction. [PDF]
Stat MedABSTRACT Survival trees are popular alternatives to Cox or Aalen regression models that offer both modeling flexibility and graphical interpretability. This paper introduces a new algorithm for survival trees that relaxes the assumption of independent censoring. To this end, we use the copula‐graphic estimator to estimate survival functions.
Baur P, Pauly M, Emura T.
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Some New Bivariate Properties and Characterizations Under Archimedean Copula
MathematicsThis paper considers comparing properties and characterizations of the bivariate functions under Archimedean copula. It is shown that some results of the usual stochastic order for the bivariate functions in the independent case are generalized to the ...
Qingyuan Guan, Peihua Jiang
exaly +3 more sources
A New Family of Archimedean Copulas: The Half-Logistic Family of Copulas
Mathematics, 2023 In this research, we introduce a truncation of the half-logistic distribution function as a multiplicative Archimedean generator. The corresponding Archimedean copula is obtained, namely the half-logistic family.
Abdulhamid A. Alzaid, Weaam M. Alhadlaq
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Alexandria Engineering Journal, 2022 The goal of the present research work is to develop a new family of aggregation operators (AOs) under the fractional orthotriple fuzzy (FOF) information and apply them to MCDM problems.
Muhammad Qiyas +3 more
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On convergence of associative copulas and related results
Dependence Modeling, 2021 Triggered by a recent article establishing the surprising result that within the class of bivariate Archimedean copulas 𝒞ar different notions of convergence - standard uniform convergence, convergence with respect to the metric D1, and so-called weak ...
Kasper Thimo M. +2 more
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On Construction of Bernstein-Bézier Type Bivariate Archimedean Copula
Revstat Statistical Journal, 2022 In this paper, a new class of bivariate multi-parameter Archimedean copula based on Kendall distribution using Bernstein-Bézier polynomials is introduced. The new class copula has flexible dependence properties depending on the polynomial degree and the
Selim Orhun Susam , Burcu Hudaverdi
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Matrix-Tilted Archimedean Copulas
Risks, 2021 The new class of matrix-tilted Archimedean copulas is introduced. It combines properties of Archimedean and elliptical copulas by introducing a tilting matrix in the stochastic representation of Archimedean copulas, similar to the Cholesky factor for ...
Marius Hofert, Johanna F. Ziegel
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