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MP
2011
15 years 1 months ago
Smoothed analysis of condition numbers and complexity implications for linear programming
We perform a smoothed analysis of Renegar’s condition number for linear programming by analyzing the distribution of the distance to ill-posedness of a linear program subject to...
John Dunagan, Daniel A. Spielman, Shang-Hua Teng
IVC
2008
141views more  IVC 2008»
15 years 5 months ago
Segmentation of color images via reversible jump MCMC sampling
Reversible jump Markov chain Monte Carlo (RJMCMC) is a recent method which makes it possible to construct reversible Markov chain samplers that jump between parameter subspaces of...
Zoltan Kato
CORR
2008
Springer
119views Education» more  CORR 2008»
15 years 6 months ago
Capacity of the Discrete-Time AWGN Channel Under Output Quantization
We investigate the limits of communication over the discrete-time Additive White Gaussian Noise (AWGN) channel, when the channel output is quantized using a small number of bits. W...
Jaspreet Singh, Onkar Dabeer, Upamanyu Madhow
TSP
2008
95views more  TSP 2008»
15 years 6 months ago
On the Description of Spectrogram Probabilities With a Chi-Squared Law
Abstract--Given a correlated Gaussian signal, may a chisquared law of probability always be used to describe a spectrogram coefficient distribution? If not, would a "chi-squar...
J. Huillery, F. Millioz, N. Martin
ICIP
2003
IEEE
16 years 8 months ago
A semantic representation for image retrieval
Robust semantic labeling of image regions is a basic problem in representing and retrieving image/video content. We propose an SVM-MRF framework to model features and their spatia...
Lei Wang, B. S. Manjunath