Sökning: "Anders Björkström"

Hittade 2 avhandlingar innehållade orden Anders Björkström.

  1. 1. A contribution to modelling the global carbon dioxide cycle with emphasis on fluxes to and within the ocean

    Författare :Anders Björkström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis deals with the biogeochemical cycle of carbon. The focus is on the global aspects of the cycle, especially on processes that operate with characteristic times between one and one thousand years. LÄS MER

  3. 2. Regression methods in multidimensional prediction and estimation

    Författare :Anders Björkström; Rolf Sundberg; Philip J Brown; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; regression; prediction; principal compnents regression; ridge regression; partial least squares; Mathematical statistics; Matematisk statistik; matematisk statistik; Mathematical Statistics;

    Sammanfattning : In regression with near collinear explanatory variables, the least squares predictor has large variance. Ordinary least squares regression (OLSR) often leads to unrealistic regression coefficients. Several regularized regression methods have been proposed as alternatives. LÄS MER