Approximating the Joint replenishment Problem with Deadlines

  title={Approximating the Joint replenishment Problem with Deadlines},
  author={Tim Nonner and Alexander Souza},
  journal={Discrete Math., Alg. and Appl.},
The objective of the classical Joint Replenishment Problem (JRP) is to minimize ordering costs by combining orders in two stages, first at some retailers, and then at a warehouse. These orders are needed to satisfy demands that appear over time at the retailers. We investigate the natural special case that each demand has a deadline until when it needs to be satisfied. For this case, we present a randomized 5/3-approximation algorithm. We moreover prove that JRP with deadlines is APX-hard… CONTINUE READING

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