Article ID: | iaor201111209 |
Volume: | 39 |
Issue: | 6 |
Start Page Number: | 433 |
End Page Number: | 436 |
Publication Date: | Nov 2011 |
Journal: | Operations Research Letters |
Authors: | Skutella Martin, Williamson David P |
Keywords: | covering problems, approximation algorithms |
This paper considers the generalized min-sum set cover problem. A 485-approximation algorithm was previously known. We improve this to a 28-approximation algorithm.