• A matrix-free method for regularisation with unrestricted variables 

      Fotland, Bjørn Harald (Master thesis, 2008)
      In this thesis a method for the partially norm constrained least squares problem is presented. The method relies on a large-scale trust-region solver and has a low storage requirement. A combination of image misalignment ...
    • Streamline based History Matching 

      Sandve, Tor Harald (Master thesis, 2009-05-07)
      Streamline based reservoir simulation has been used with great success in the petroleum industry for decades. Fast computational speed together with the fact that sensitivities can be computed analytically along streamlines ...