Erratum: Erratum to: "An approximation algorithm for the k-level stochastic facility location problem" [Oper. Res. Lett. 38 (2010) 386-389]

  • Authors:

  • Zhen Wang;Donglei Du;Adriana F. Gabor;Dachuan Xu

  • Affiliations:

  • Department of Applied Mathematics, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, PR China;Faculty of Business Administration, University of New Brunswick, Fredericton, NB, Canada E3B 5A3;Department of Econometrics, Erasmus School of Economics, Erasmus University Rotterdam, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands;Department of Applied Mathematics, Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing 100124, PR China

  • Venue:
  • Operations Research Letters
  • Year:
  • 2011

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Abstract

The algorithm proposed in [Z. Wang, D. Du, A.F. Gabor, D. Xu, An approximation algorithm for the k-level stochastic facility location problem, Operations Research Letters 38 (2010) 386-389] does not achieve an approximation guarantee of 3 as claimed in Theorem 3.2. A slightly modified algorithm is proposed that achieves an approximation guarantee of 4.