Hyun-Seon Choi

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We consider the problem of scheduling a set of independent jobs on parallel machines for the objective of minimizing total tardiness. Each job may have sequence-dependent setup and distinct ready times, i.e., the time at which the job is available for processing. Due to the complexity of the problem, tabu search heuristics are suggested that incorporate new(More)
Refuse collection is an activity rendering used products or wastes and moving them to some points where further treatment is taken care of. This paper addresses the vehicle routing problem occurred in a refuse collection area, Seoul, South Korea. The vehicle routing problem considered in this case study is the problem of determining the vehicle routes that(More)
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