Blar i SINTEF Open på forfatter "Luteberget, Bjørnar Steinnes"
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Drawing with SAT: four methods and A tool for producing railway infrastructure schematics
Luteberget, Bjørnar Steinnes; Johansen, Christian (Peer reviewed; Journal article, 2021)Schematic drawings showing railway tracks and equipment are commonly used to visualize railway operations and to communicate system specifications and construction blueprints. Recent advances in on-line collaboration and ... -
Feasibility Jump: an LP-free Lagrangian MIP heuristic
Luteberget, Bjørnar Steinnes; Sartor, Giorgio (Peer reviewed; Journal article, 2023)We present Feasibility Jump (FJ), a primal heuristic for mixed-integer linear programs (MIP) using stochastic guided local search over a Lagrangian relaxation. The method is incomplete: it does not necessarily produce ... -
SAT modulo discrete event simulation applied to railway design capacity analysis
Luteberget, Bjørnar Steinnes; Claessen, Koen; Johansen, Christian; Steffen, Martin (Peer reviewed; Journal article, 2021)This paper proposes a new method of combining SAT with discrete event simulation. This new integration proved useful for designing a solver for capacity analysis in early phase railway construction design. Railway capacity ...