• 1 Procurement of Transportation Contracts
  • 2 A Bi-Objective Winner Determination Problem (2WDP-SC)
  • 3 Solution Approaches for the Bi-Objective Winner DeterminationProblem
  • 3.1 A Branch–and–Bound Algorithm Based on the Epsilon-constraint Method
  • 3.2 A Genetic Algorithm Based on SPEA2
  • 4 Evaluation
  • 4.1 Generating Test Instances
  • 4.2 Measuring the Quality of an Approximation Set
  • 4.3 Evaluation of the eLookahead–Branch–and–Bound
  • 4.4 Evaluation of the Genetic Algorithm
  • 5 Conclusions and Outlook
  • References