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Showing 1 to 3 of 3 for “"Martingale Residuals"”.
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Responder Identification in Clinical Trials
… (e.g. via search for outliers in the deviance or martingale residuals) 3. Identification of predictive factors, which describe common features of the patients with residual outliers, namely the positive and negative responders (e.g. via regression tree or bump hunting analysis, or via the …
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Beyond Parameter Estimation: Analysis of the Case-Cohort Design in Cox Models
… model can be assessed graphically by smoothed martingale residuals against various other values, such as time and covariates of interest (Therneau et al, 1990). The over-representation of cases in the case-cohort data, as compared to the full cohort, distorts the properties of such residuals. …
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Cox-type model validation with recurrent event data
… are obtained using the counting processes and martingales machinery techniques. Asymptotic properties of the proposed estimators and how they can be used to construct confidence intervals are investigated. The results of the simulation studies assessing the performance of the estimators and an …