Title
On-line two-machine open shop scheduling with time lags
Abstract
We analyze the performance of the greedy algorithm for the on-line two-machine open shop scheduling problem of minimizing makespan, in which time lags exist between the completion time of the first and the start time of the second operation of any job. The competitive ratio for the greedy algorithm is 2, and it can be reduced to 5/3 if the maximum time lag is less than the minimum positive processing time of any operation. These ratios are tight. We also prove that no on-line non-delay algorithm can have a better competitive ratio.
Year
DOI
Venue
2010
10.1016/j.ejor.2009.09.023
European Journal of Operational Research
Keywords
DocType
Volume
On-line scheduling,Open shops,Time lags,Greedy algorithm,Worst case analysis
Journal
204
Issue
ISSN
Citations 
1
0377-2217
2
PageRank 
References 
Authors
0.40
6
2
Name
Order
Citations
PageRank
Xiandong Zhang182.27
Steef van de Velde2213.31