| Article ID: | iaor20062610 | 
| Country: | Netherlands | 
| Volume: | 167 | 
| Issue: | 2 | 
| Start Page Number: | 283 | 
| End Page Number: | 296 | 
| Publication Date: | Dec 2005 | 
| Journal: | European Journal of Operational Research | 
| Authors: | Wirth Andrew, Dunstall Simon | 
| Keywords: | programming: branch and bound | 
This paper investigates branch-and-bound algorithms for the problem of scheduling jobs with family setups on identical parallel machines to minimize the weighted sum of completion times. In particular, we propose a new branching scheme that appears to substantially outperform current procedures in terms of computation time and search tree size.