Linear Programming-based Approximation Algorithms for Multi-Vehicle Minimum Latency Problems (Extended Abstract)

@article{Post2015LinearPA,
  title={Linear Programming-based Approximation Algorithms for Multi-Vehicle Minimum Latency Problems (Extended Abstract)},
  author={Ian Post and Chaitanya Swamy},
  journal={ArXiv},
  year={2015},
  volume={abs/1411.4573}
}
We consider various multi-vehicle versions of the minimum latency problem. There is a fleet of k vehicles located at one or more depot nodes, and we seek a collection of routes for these vehicles that visit all nodes so as to minimize the total latency incurred, which is the sum of the client waiting times. We obtain an 8.497-approximation for the version where vehicles may be located at multiple depots and a 7.183-approximation for the version where all vehicles are located at the same depot… 
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