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On the minimizing point of the incorrectly centered empirical process and its limit distribution in nonregular experiments

Dietmar Ferger — 2005

ESAIM: Probability and Statistics

Let F n be the empirical distribution function (df) pertaining to independent random variables with continuous df F . We investigate the minimizing point τ ^ n of the empirical process F n - F 0 , where F 0 is another df which differs from F . If F and F 0 are locally Hölder-continuous of order α at a point τ our main result states that n 1 / α ( τ ^ n - τ ) converges in distribution. The limit variable is the almost sure unique minimizing point of a two-sided time-transformed homogeneous Poisson-process with a drift. The time-transformation...

On the minimizing point of the incorrectly centered empirical process and its limit distribution in nonregular experiments

Dietmar Ferger — 2010

ESAIM: Probability and Statistics

Let be the empirical distribution function (df) pertaining to independent random variables with continuous df . We investigate the minimizing point τ ^ n of the empirical process , where is another df which differs from . If and are locally Hölder-continuous of order at a point our main result states that n 1 / α ( τ ^ n - τ ) converges in distribution. The limit variable is the almost sure unique minimizing point of a two-sided time-transformed homogeneous Poisson-process...

On the Argmin-sets of stochastic processes and their distributional convergence in Fell-type-topologies

Dietmar Ferger — 2011

Kybernetika

Let ϵ - ( Z ) be the collection of all ϵ -optimal solutions for a stochastic process Z with locally bounded trajectories defined on a topological space. For sequences ( Z n ) of such stochastic processes and ( ϵ n ) of nonnegative random variables we give sufficient conditions for the (closed) random sets ϵ n - ( Z n ) to converge in distribution with respect to the Fell-topology and to the coarser Missing-topology.

A continuous mapping theorem for the argmin-set functional with applications to convex stochastic processes

Dietmar Ferger — 2021

Kybernetika

For lower-semicontinuous and convex stochastic processes Z n and nonnegative random variables ϵ n we investigate the pertaining random sets A ( Z n , ϵ n ) of all ϵ n -approximating minimizers of Z n . It is shown that, if the finite dimensional distributions of the Z n converge to some Z and if the ϵ n converge in probability to some constant c , then the A ( Z n , ϵ n ) converge in distribution to A ( Z , c ) in the hyperspace of Vietoris. As a simple corollary we obtain an extension of several argmin-theorems in the literature. In particular, in...

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