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A 3/2-Approximation Algorithm for Multiple Depot Multiple Traveling Salesman Problem

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Algorithm Theory - SWAT 2010 (SWAT 2010)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 6139))

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Abstract

As an important extension of the classical traveling salesman problem (TSP), the multiple depot multiple traveling salesman problem (MDMTSP) is to minimize the total length of a collection of tours for multiple vehicles to serve all the customers, where each vehicle must start or stay at its distinct depot. Due to the gap between the existing best approximation ratios for the TSP and for the MDMTSP in literature, which are 3/2 and 2, respectively, it is an open question whether or not a 3/2-approximation algorithm exists for the MDMTSP. We have partially addressed this question by developing a 3/2-approximation algorithm, which runs in polynomial time when the number of depots is a constant.

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Xu, Z., Rodrigues, B. (2010). A 3/2-Approximation Algorithm for Multiple Depot Multiple Traveling Salesman Problem . In: Kaplan, H. (eds) Algorithm Theory - SWAT 2010. SWAT 2010. Lecture Notes in Computer Science, vol 6139. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13731-0_13

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  • DOI: https://doi.org/10.1007/978-3-642-13731-0_13

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-13730-3

  • Online ISBN: 978-3-642-13731-0

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