A fast approximate implementation of the work function algorithm for solving the $$k$$ k -server problem

Tomislav Rudec () and Robert Manger ()

Central European Journal of Operations Research, 2015, vol. 23, issue 3, 699-722

Abstract: In this paper we propose an approximate implementation of the work function algorithm (WFA) for solving the $$k$$ k -server problem. Our implementation is based on network flow techniques, a novel network model, and flow cost reduction. Also, it is provided with a parameter that enables tradeoff between accuracy and speed. In the paper we present experiments, showing that the new implementation can mimic perfectly the original WFA and still run at least an order of magnitude faster than any known exact implementation. Copyright Springer-Verlag Berlin Heidelberg 2015

Keywords: Combinatorial optimization; On-line computation; $$k$$ k -server problem; Work function algorithm; Implementation; Network flows; Cost reduction (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (3)

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DOI: 10.1007/s10100-014-0349-4

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