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DCC
2001
IEEE
14 years 6 months ago
A Posteriori Quantized Matching Pursuit
This paper studies quantization error in the context of Matching Pursuit coded streams and proposes a new coefficient quantization scheme taking benefit of the Matching Pursuit pr...
Pascal Frossard, Pierre Vandergheynst
INFOCOM
2009
IEEE
14 years 1 months ago
Physical Interference Modeling for Transmission Scheduling on Commodity WiFi Hardware
—The demand for capacity in WiFi networks is driving a new look at transmission scheduling based link layers, particularly in the context of mesh networks. One basic issue here i...
Ritesh Maheshwari, Jing Cao, Samir R. Das
GLOBECOM
2009
IEEE
14 years 1 months ago
Local Estimation of Probabilities of Direct and Staggered Collisions in 802.11 WLANs
—Current 802.11 networks do not typically achieve the maximum potential throughput despite link adaptation and crosslayer optimization techniques designed to alleviate many cause...
Michael N. Krishnan, Sofie Pollin, Avideh Zakhor
SIGMOD
1999
ACM
110views Database» more  SIGMOD 1999»
13 years 11 months ago
Multi-dimensional Selectivity Estimation Using Compressed Histogram Information
The database query optimizer requires the estimation of the query selectivity to find the most efficient access plan. For queries referencing multiple attributes from the same rel...
Ju-Hong Lee, Deok-Hwan Kim, Chin-Wan Chung
EUROCOLT
1999
Springer
13 years 11 months ago
Regularized Principal Manifolds
Many settings of unsupervised learning can be viewed as quantization problems — the minimization of the expected quantization error subject to some restrictions. This allows the ...
Alex J. Smola, Robert C. Williamson, Sebastian Mik...