• A Lower Bound for the Node, Edge, and Arc Routing Problem 

      Bach, Lukas; Hasle, Geir; Wøhlk, Sanne (Journal article; Peer reviewed, 2013)
      The Node, Edge, and Arc Routing Problem (NEARP) was defined by Prins and Bouchenoua in 2004, although similar problems have been studied before. This problem, also called the Mixed Capacitated General Routing Problem ...
    • A Lower Bound for the Node, Edge, and ArcRouting Problem 

      Bach, Lukas; Hasle, Geir; Wøhlk, Sanne (Research report, 2011)
      The Node, Edge, and Arc Routing Problem (NEARP) was defined by Prins and Bouchenoua in 2004. They also proposed a memetic algorithm procedure and defined a set of test instances: the so-called CBMix benchmark. The NEARP ...
    • Adaptive Large Neighborhood Search on the Graphics Processing Unit 

      Bach, Lukas; Hasle, Geir; Schulz, Christian Ferdinand (Journal article; Peer reviewed, 2018)
      For computationally hard discrete optimization problems, we rely on increasing computing power to reduce the solution time. In recent years the computational capacity of the Graphics Processing Unit (GPU) in ordinary desktop ...
    • Integrating Timetabling and Crew Scheduling at a Freight Railway Operator 

      Bach, Lukas; Dollevoet, Twan; Huisman, Dennis (Journal article; Peer reviewed, 2016)
      We investigate to what degree we can integrate a Train Timetabling / Engine Scheduling Problem with a Crew Scheduling Problem. In the Timetabling / Engine Scheduling Problem we determine for each demand a specific time ...
    • Utslippsfrie byggeplasser. State of the art. Veileder for innovative anskaffelsesprosesser 

      Fufa, Selamawit Mamo; Mellegård, Sofie Elisabet; Wiik, Marianne Rose Kjendseth; Flyen, Cecilie; Hasle, Geir; Bach, Lukas; González, Pablo; Løe, Erlend Salberg; Idsøe, Flemming (SINTEF Fag;49, Research report, 2018)
      Forprosjektet om utslippsfrie byggeplasser har hovedfokus på fagfeltene samferdsel og transport og skal bidra til at Oslo kommune kan stille bedre krav til utslippsfrie byggeplasser gjennom innovative offentlige anskaffelser ...