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ALGORITHMICA
2004
111views more  ALGORITHMICA 2004»
13 years 4 months ago
Non-Clairvoyant Scheduling for Minimizing Mean Slowdown
We consider the problem of scheduling dynamically arriving jobs in a non-clairvoyant setting, that is, when the size of a job in remains unknown until the job finishes execution. ...
Nikhil Bansal, Kedar Dhamdhere, Jochen Könema...
ESA
2010
Springer
149views Algorithms» more  ESA 2010»
13 years 5 months ago
Non-clairvoyant Speed Scaling for Weighted Flow Time
We study online job scheduling on a processor that can vary its speed dynamically to manage its power. We attempt to extend the recent success in analyzing total unweighted flow ti...
Sze-Hang Chan, Tak Wah Lam, Lap-Kei Lee
ESA
2008
Springer
95views Algorithms» more  ESA 2008»
13 years 6 months ago
Speed Scaling Functions for Flow Time Scheduling Based on Active Job Count
Abstract. We study online scheduling to minimize flow time plus energy usage in the dynamic speed scaling model. We devise new speed scaling functions that depend on the number of ...
Tak Wah Lam, Lap-Kei Lee, Isaac Kar-Keung To, Prud...
STACS
2009
Springer
13 years 11 months ago
Nonclairvoyant Speed Scaling for Flow and Energy
We study online nonclairvoyant speed scaling to minimize total flow time plus energy. We first consider the traditional model where the power function is P(s) = sα . We give a ...
Ho-Leung Chan, Jeff Edmonds, Tak Wah Lam, Lap-Kei ...
IWCM
2004
Springer
13 years 10 months ago
Determining the Translational Speed of a Camera from Time-Varying Optical Flow
Under certain assumptions, a moving camera can be self-calibrated solely on the basis of instantaneous optical flow. However, due to a fundamental indeterminacy of scale, instanta...
Anton van den Hengel, Wojciech Chojnacki, Michael ...