Mathematische Statistik und Wahrscheinlichkeitstheorie : Preprint
ISSN (print) 1613-3307
URN urn:nbn:de:kobv:517-series-317
Herausgegeben vom
Institut für Mathematik, Mathematische Statistik und Wahrscheinlichkeitstheorie
URN urn:nbn:de:kobv:517-series-317
Herausgegeben vom
Institut für Mathematik, Mathematische Statistik und Wahrscheinlichkeitstheorie
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2010, 02
Estimation and testing the effect of covariates in accelerated life time models under censoring
(2010)
The accelerated lifetime model is considered. To test the influence of the covariate we transform the model in a regression model. Since censoring is allowed this approach leads to a goodness-of-fit problem for regression functions under censoring. So nonparametric estimation of regression functions under censoring is investigated, a limit theorem for a L2-distance is stated and a test procedure is formulated. Finally a Monte Carlo procedure is proposed.
2004, 01
We analyse different Gibbsian properties of interactive Brownian diffusions X indexed by the lattice $Z^{d} : X = (X_{i}(t), i ∈ Z^{d}, t ∈ [0, T], 0 < T < +∞)$. In a first part, these processes are characterized as Gibbs states on path spaces of the form $C([0, T],R)Z^{d}$. In a second part, we study the Gibbsian character on $R^{Z}^{d}$ of $v^{t}$, the law at time t of the infinite-dimensional diffusion X(t), when the initial law $v = v^{0}$ is Gibbsian.