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|Title:||Competitive on-line scheduling with Level of Service|
|Authors:||Chang, E.-C. |
Level of service
|Source:||Chang, E.-C., Yap, C. (2003). Competitive on-line scheduling with Level of Service. Journal of Scheduling 6 (3) : 251-267. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1022904408360|
|Abstract:||Motivated by an application in thinwire visualization, we study an abstract on-line scheduling problem where the size of each requested service can be scaled down by the scheduler. Thus, our problem embodies a notion of "Level of Service" that is increasingly important in multimedia applications. We give two schedulers FirstFit and EndFit based on two simple heuristics, and generalize them into a class of greedy schedulers. We show that both FirstFit and EndFit are 2-competitive, and any greedy scheduler is 3-competitive. These bounds are shown to be tight.|
|Source Title:||Journal of Scheduling|
|Appears in Collections:||Staff Publications|
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