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» Rates of convergence for Quicksort
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ORL
2008
124views more  ORL 2008»
15 years 6 months ago
Sample average approximation of expected value constrained stochastic programs
We propose a sample average approximation (SAA) method for stochastic programming problems involving an expected value constraint. Such problems arise, for example, in portfolio s...
Wei Wang, Shabbir Ahmed
TIT
2002
99views more  TIT 2002»
15 years 5 months ago
Poisson intensity estimation for tomographic data using a wavelet shrinkage approach
We consider a two-dimensional problem of positron emission tomography where the random mechanism of the generation of the tomographic data is modeled by Poisson processes. The goa...
L. Cavalier, Ja-Yong Koo
JAT
2010
71views more  JAT 2010»
15 years 4 months ago
Functions with prescribed best linear approximations
A common problem in applied mathematics is that of finding a function in a Hilbert space with prescribed best approximations from a finite number of closed vector subspaces. In ...
Patrick L. Combettes, Noli N. Reyes
GLOBECOM
2008
IEEE
16 years 19 days ago
Lowering LDPC Error Floors by Postprocessing
−A class of combinatorial structures, called absorbing sets, strongly influences the performance of low-density paritycheck (LDPC) decoders at low error rates. Past experiments h...
Zhengya Zhang, Lara Dolecek, Borivoje Nikolic, Ven...
PAMI
2007
113views more  PAMI 2007»
15 years 5 months ago
Analytical Results on Style-Constrained Bayesian Classification of Pattern Fields
—We formalize the notion of style context, which accounts for the increased accuracy of the field classifiers reported in this journal recently. We argue that style context forms...
Sriharsha Veeramachaneni, George Nagy