Abstract

Pitakaso et al.[1] presented an ant systems based on random cumulative Wagner-Whitin (RCWW) (RCWW-STVS) for uncapacitated multilevel lot-sizing (MLLS) problems and gave out a computational result for Dellaert's instance [2] with a random variable r = 0.43. The result is not quite right. This paper highlighted the error and presented a revision to the result.

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