Název:
On analysis of martingale residuals in lifetime models
Autoři:
Volf, Petr Typ dokumentu: Příspěvky z konference Konference/Akce: REQUEST 09, Liberec (CZ), 2009-11-26 / 2009-11-27
Rok:
2010
Jazyk:
eng
Abstrakt: Residual analysis is used commonly in statistical tests of model fit, i.e. of good correspondence between data and model. We shall recall the notion of martingale residuals de¯ned for the case of lifetime models based on failure intensities. Analysis of these residual processes has already been studied by many authors. Nevertheless, Bayes approach to this problem is just developing. We shall present a Bayes procedure of estimation in models containing nonparametric components. Further, Bayes construction of residual processes and model goodness-of-¯t assessing will be proposed and demonstrated on an example with Cox's regression model.
Klíčová slova:
Bayes statistics; lifetime model; martingale residuals Číslo projektu: CEZ:AV0Z10750506 (CEP), 1M06047 (CEP) Poskytovatel projektu: GA MŠk Zdrojový dokument: Reliability Quality Estimation 09, ISBN 978-80-7372-619-5