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» A Symmetric Convexity Measure
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DCC
2007
IEEE
14 years 7 months ago
Quantization of Sparse Representations
Compressive sensing (CS) is a new signal acquisition technique for sparse and compressible signals. Rather than uniformly sampling the signal, CS computes inner products with rand...
Petros Boufounos, Richard G. Baraniuk
FS
2006
66views more  FS 2006»
13 years 7 months ago
Generalized deviations in risk analysis
General deviation measures are introduced and studied systematically for their potential applications to risk management in areas like portfolio optimization and engineering. Such...
R. Tyrrell Rockafellar, Stan Uryasev, Michael Zaba...
ORL
2007
83views more  ORL 2007»
13 years 7 months ago
Large deviations bounds for estimating conditional value-at-risk
In this paper, we prove an exponential rate of convergence result for a common estimator of conditional value-at-risk for bounded random variables. The bound on optimistic deviati...
David B. Brown
TIT
2002
90views more  TIT 2002»
13 years 7 months ago
Optimal sequences for CDMA under colored noise: A Schur-saddle function property
We consider direct sequence code division multiple access (DS-CDMA), modeling interference from users communicating with neighboring base stations by additive colored noise. We con...
Pramod Viswanath, Venkat Anantharam
IJDAR
2010
164views more  IJDAR 2010»
13 years 5 months ago
Distance-based classification of handwritten symbols
We study online classification of isolated handwritten symbols using distance measures on spaces of curves. We compare three distance-based measures on a vector space representatio...
Oleg Golubitsky, Stephen M. Watt