Sökning: "Semiparametric bootstrap"

Hittade 2 avhandlingar innehållade orden Semiparametric bootstrap.

1. 1. Estimators of semiparametric truncated and censored regression models

   Författare :Maria Karlsson; Thomas Laitila; Göran Broström; Kenneth Carling; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Statistics; LTRC; consistency; asymtotic normality; bootstrap; interpurchase intervals; Statistik; Statistics; Statistik; Statistics; statistik;

   Sammanfattning : This thesis contributes in several ways to the existing knowledge on estimation of truncated, censored, and left truncated right censored (LTRC) regression models. Three new semiparametric estimators are proposed, allowing for asymmetric error distributions. LÄS MER

3. 2. Spatial sampling and prediction

   Författare :Lina Schelin; Sara Sjöstedt-de Luna; Silvelyn Zwanzig; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Auxiliary variables; Censoring; Inclusion probabilities; Kriging; Local pivotal method; Minimum detection limit; Prediction intervals; Representative sample; Spatial process; Spatial sampling; Semiparametric bootstrap; Mathematical Statistics; matematisk statistik;

   Sammanfattning : This thesis discusses two aspects of spatial statistics: sampling and prediction. In spatial statistics, we observe some phenomena in space. Space is typically of two or three dimensions, but can be of higher dimension. LÄS MER