Results 11 to 20 of about 150 (129)
Journal of MathematicsA bivariate lifetime model is proposed by coupling odd Fréchet half-logistic (OFHL) marginals with the Farlie–Gumbel–Morgenstern (FGM) copula under a unified hybrid censoring (UHC) scheme introducing UHC for bivariate lifetime models for the first time ...
Ehab M. Almetwally
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Journal of MathematicsThis paper proposes a novel bivariate odd beta prime Fréchet (BOBPF) distribution constructed through the application of the Farlie–Gumbel–Morgenstern (FGM) copula function.
Aliyu Ismail Ishaq +5 more
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Developing prediction models to estimate the risk of two survival outcomes both occurring: A comparison of techniques. [PDF]
Stat Med, 2023 Introduction This study considers the prediction of the time until two survival outcomes have both occurred. We compared a variety of analytical methods motivated by a typical clinical problem of multimorbidity prognosis. Methods We considered five methods: product (multiply marginal risks), dual‐outcome (directly model the time until both events occur)
Pate A +10 more
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Joint Modeling of Birth Outcomes Using a Copula Distributional Regression Approach. [PDF]
Health EconABSTRACT Low birth weight and preterm birth are key indicators of neonatal health, influencing both immediate and long‐term infant outcomes. While low birth weight may reflect fetal growth restrictions, preterm birth captures disruptions in gestational development. Ignoring the potential interdependence between these variables may lead to an incomplete
Marra G, Radice R.
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Bivariate Copula-Based Regression for Joint Modeling of Healthcare Visits. [PDF]
Health EconABSTRACT Doctor and non‐doctor visit frequencies are key indicators of healthcare access, utilization and individual health‐seeking behavior. While doctor visits reflect engagement with formal medical services, non‐doctor visits, such as to nurses, physiotherapists or alternative providers, offer insights into patient preferences and system ...
Marra G, Radice R.
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Analysis of the Impact of Wireless Three-User Multiple Access Channel Coefficients Correlation on Outage Probability: A Copula-Based Approach [PDF]
Computer and Knowledge Engineering, 2023 In wireless communication channels, the channel coefficients are dependent on each other. This paper investigates the constructive or destructive effects of fading coefficients correlation of wireless multiple access channels (MAC) on the outage ...
Mona Sadat Mohsenzadeh +1 more
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On the Use of Copula for Quality Control Based on an AR(1) Model
Mathematics, 2021 Manufacturing for a multitude of continuous processing applications in the era of automation and ‘Industry 4.0’ is focused on rapid throughput while producing products of acceptable quality that meet customer specifications.
Timothy M. Young +2 more
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On a Bivariate XGamma Distribution Derived from Copula
Statistica, 2022 In this paper, a new bivariate XGamma (BXG) distribution is presented using Farlie-Gumbel-Morgenstern (FGM) copula. We derive the expressions for conditional distribution, regression function and product moments for the BXG distribution.
Mohammed Abulebda +3 more
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Statistical inference for the non-conforming rate of FGM Copula-Based bivariate exponential lifetime [PDF]
Journal of Mahani Mathematical Research, 2022 Lifetime performance index is widely used as process capability index to evaluate the performance and potential of a process. In manufacturing industries, the lifetime of a product is considered to be conforming if it exceeds a given lower ...
Zainab Abbasi Ganji +3 more
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Mathematics, 2020 The extreme value theory is expanded by proposing and studying a new version of the Fréchet model. Some new bivariate type extensions using Farlie–Gumbel–Morgenstern copula, modified Farlie–Gumbel–Morgenstern copula, Clayton copula, and Renyi’s entropy ...
Mukhtar M. Salah +3 more
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