Enhancing Cardiovascular Risk Prediction: Development of an Advanced Xgboost Model with Hospital-Level Random Effects [PDF]
BioengineeringBackground: Ensemble tree-based models such as Xgboost are highly prognostic in cardiovascular medicine, as measured by the Clinical Effectiveness Metric (CEM). However, their ability to handle correlated data, such as hospital-level effects, is limited.
Tim Dong +8 more
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Reformulating the meta-analytical random effects model of the standardized mean difference as a mixture model. [PDF]
Behav Res MethodsSuero M +3 more
europepmc +3 more sources
Prevalence and correlates of food insecurity in rural Nigeria: A panel analysis
Economia Agro-Alimentare, 2021 The study assessed dynamics of food insecurity among households in rural Nigeria using the Living Standard Measurement Survey-Integrated Survey on Agriculture (LSMSISA) collected in 2010/2011 and 2015/2016.
Oluwakemi Adeola Obayelu +2 more
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An Asymmetric Area Model-Based Approach for Small Area Estimation Applied to Survey Data
Revstat Statistical Journal, 2021 The Birnbaum–Saunders distribution is asymmetrical and has received considerable attention due to its properties and its relationship with the normal distribution. In this paper, we propose a methodology for estimating the mean of small areas based on a
Marcelo Rodríguez +5 more
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Nonparametric Effect of Technological Distance on Iran’s Bilateral Trade and its Trading Partners [PDF]
فصلنامه پژوهشهای اقتصادی ایران, 2019 In recent years, most studies in the field of technology and trade have focused on the critical importance of technological change in explaining international trade patterns.
Sepideh Ohadi Esfahani +2 more
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Mathematics, 2022 The article focuses on mortality models with a random effect applied in order to evaluate human mortality more precisely. Such models are called frailty or Cox models. The main assertion of the paper shows that each positive random effect transforms the initial hazard rate (or density function) to a new absolutely continuous survival function.
Jonas Šiaulys, Rokas Puišys
openaire +2 more sources
Ceylon Journal of Science, 2023 Information on the diameter increment of tree species is important for developing a sustainable forest harvesting plan and for reforestation. Fitting a forest growth model for diameter increment can be utilized to get the information.
D. P. V. R. Dissanayake +2 more
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Basic Features of the Analysis of Germination Data with Generalized Linear Mixed Models
Data, 2020 Germination data are discrete and binomial. Although analysis of variance (ANOVA) has long been used for the statistical analysis of these data, generalized linear mixed models (GzLMMs) provide a more consistent theoretical framework. GzLMMs are suitable
Alberto Gianinetti
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A Longitudinal Analysis of the Impact of Distance Driven on the Probability of Car Accidents
Risks, 2020 Using telematics data, we study the relationship between claim frequency and distance driven through different models by observing smooth functions. We used Generalized Additive Models (GAM) for a Poisson distribution, and Generalized Additive Models for
Jean-Philippe Boucher, Roxane Turcotte
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New Metrics for Assessing the State Performance in Combating the COVID‐19 Pandemic
GeoHealth, 2021 Previous research has noted that many factors greatly influence the spread of COVID‐19. Contrary to explicit factors that are measurable, such as population density, number of medical staff, and the daily test rate, many factors are not directly ...
Yun Li +7 more
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