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JSAC
2006
83views more  JSAC 2006»
15 years 4 months ago
Optimal ACK mechanisms of the IEEE 802.15.3 MAC for ultra-wideband systems
Ultra-wideband (UWB) transmission is an emerging wireless technology for future short-range indoor and outdoor multimedia applications. To coordinate the access to the wireless med...
Yang Xiao, Xuemin Shen, Hai Jiang
ICCV
2009
IEEE
1714views Computer Vision» more  ICCV 2009»
16 years 9 months ago
Power watersheds: a new image segmentation framework extending graph cuts, random walker and optimal spanning forest
In this work, we extend a common framework for seeded image segmentation that includes the graph cuts, ran- dom walker, and shortest path optimization algorithms. Viewing an ima...
Camille Couprie, Leo Grady, Laurent Najman, Hugues...
IR
2010
15 years 3 months ago
A general approximation framework for direct optimization of information retrieval measures
Recently direct optimization of information retrieval (IR) measures becomes a new trend in learning to rank. Several methods have been proposed and the effectiveness of them has ...
Tao Qin, Tie-Yan Liu, Hang Li
CDC
2010
IEEE
167views Control Systems» more  CDC 2010»
14 years 11 months ago
Numerical methods for the optimization of nonlinear stochastic delay systems, and an application to internet regulation
The Markov chain approximation method is an effective and widely used approach for computing optimal values and controls for stochastic systems. It was extended to nonlinear (and p...
Harold J. Kushner
WIOPT
2011
IEEE
14 years 8 months ago
LIFO-Backpressure achieves near optimal utility-delay tradeoff
There has been considerable recent work developing a new stochastic network utility maximization framework using Backpressure algorithms, also known as MaxWeight. A key open probl...
Longbo Huang, Scott Moeller, Michael J. Neely, Bha...