Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"non-parametric bootstrap"”.
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Methodology for characterization of representativeness uncertainty in performance indicator measurements of thermal and nuclear power plants
… for the uncertainty sources. Second, a non-parametric formulation of the Methodology framework is developed and demonstrated. The use of non-parametric techniques allows the quantification and integration of uncertainties that are not expressed by the normal probability distribution. The …
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Evaluation of bootstrapping as a validation technique for population pharmacokinetic models
… of the current study to evaluate the ability of bootstrapping to identify PPKMs that were estimated from data without influence observations versus PPKMs from data containing influence observations. The evaluation was performed in four phases. In phase I, ten no-influence index datasets and ten …
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Essays on complexity and causality in political science research
… The second essay examines the performance of bootstrap methods for quantifying the uncertainty of causal effect estimates from matching. In particular, it investigates the performance of three existing approaches as well as a newly developed one. The proposed non-parametric bootstrap method …
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Improving the accuracy of statistics used in de-identification and model validation (via the concordance statistic) pertaining to time-to-event data
… have been made. The second project developed a parametric c-statistic which assumes to the true survival times are exponentially distributed to invoke the memoryless property. A simulation study was conducted which included a comparative analysis of two other time-to-event c-statistics. Three …
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New panel unit root and cointegration tests of purchasing power parity
… cross section dependence by extending the bootstrap panel unit root proposed by Maddala and Wu (1999) and apply the latter to a panel of twenty OECD real exchange rates. We also use Monte Carlo simulations to examine the size properties of the proposed bootstrap panel test. If on one hand …
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Molecular phylogenetics and the evolutionary history of reproductive strategies in benthic shallow-water octopuses (Cephalopoda: Octopodinae)
… were implemented to estimate the phylogeny and non-parametric bootstrap was used to verify confidence intervals for Bayesian topologies. Overall the genes used in this study were better suited to the examination of recent phylogenetic relationships, which has helped to resolve the relationships …
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Historical baselines and a century of change in the demersal fish assemblages on South Africa's Agulhas Bank
… between periods were tested for 27 taxa, using a non-parametric bootstrap approach. Proportions among size-classes, recorded for three taxa, were tested using Fisher's exact test. Results revealed a substantially transformed demersal catch assemblage, where the period effect explained almost half …
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Combining microstructural analysis with EPMA monazite geochronology to constrain progressive stages of orogenesis in the Appalachians
… chapter follows on from above by evaluating a non parametric (bootstrap) method for calculating precision errors in heterogeneous monazite grains/domains. Methods to chemically and microstructurally interpret individual grains in metamorphic rocks are also presented. These techniques are …