• Lagrangian Relaxations for the Prize-Collecting Steiner Tree Problem 

      Dahle, Lars (Master thesis, 2013)
      In this thesis we look at the NP-hard Prize-Collecting Steiner Tree Problem (PCSTP). We show an application within biology, where the PCSTP is used to identify coregulated genes which are differently expressed for diffuse ...
    • The Vehicle Routing Problem with Dynamic Occasional Drivers 

      Dahle, Lars; Andersson, Henrik; Christiansen, Marielle (Journal article, 2017)
      Technological advances, such as smart phones and mobile internet, allow for new and innovative solutions for transportation of goods to customers. We consider a setting where a company not only uses its own fleet of vehicles ...