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» The Complexity of Polynomial-Time Approximation
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CORR
2008
Springer
127views Education» more  CORR 2008»
13 years 10 months ago
Achieving Near-Capacity at Low SNR on a Multiple-Antenna Multiple-User Channel
We analyze the sensitivity of the capacity of a multi-antenna multi-user system to the number of users being served. We show analytically that, for a given desired sum-rate, the e...
Chau Yuen, Bertrand M. Hochwald
CN
2006
75views more  CN 2006»
13 years 10 months ago
Dynamic online QoS routing schemes: Performance and bounds
Several dynamic QoS routing techniques have been recently proposed for new IP networks based on label forwarding. However, no extensive performance evaluation and comparison is av...
Antonio Capone, Luigi Fratta, Fabio Martignon
EOR
2006
87views more  EOR 2006»
13 years 10 months ago
Applying machine based decomposition in 2-machine flow shops
The Shifting Bottleneck (SB) heuristic is among the most successful approximation methods for solving the Job Shop problem. It is essentially a machine based decomposition procedu...
Saral Mukherjee, A. K. Chatterjee
CGF
2007
171views more  CGF 2007»
13 years 10 months ago
High-Quality Adaptive Soft Shadow Mapping
The recent soft shadow mapping technique [GBP06] allows the rendering in real-time of convincing soft shadows on complex and dynamic scenes using a single shadow map. While attrac...
Gaël Guennebaud, Loïc Barthe, Mathias Pa...
CORR
2007
Springer
128views Education» more  CORR 2007»
13 years 10 months ago
Model Selection Through Sparse Maximum Likelihood Estimation
We consider the problem of estimating the parameters of a Gaussian or binary distribution in such a way that the resulting undirected graphical model is sparse. Our approach is to...
Onureena Banerjee, Laurent El Ghaoui, Alexandre d'...