441 search results - page 82 / 89 » Sparse Recovery Using Sparse Random Matrices |
TAMC
2010
Springer
14 years 14 days ago
2010
Springer
In this paper, we establish the definition of community fundamentally different from what was commonly accepted in previous studies, where communities were typically assumed to ...
TMI
2008
13 years 7 months ago
2008
We propose a new method for detecting activation in functional magnetic resonance imaging (fMRI) data. We project the fMRI time series on a low-dimensional subspace spanned by wave...
CVPR
2011
IEEE
13 years 2 months ago
2011
IEEE
In this paper, we propose a novel method to reduce the magnitude of 4D CT artifacts by stitching two images with a data-driven regularization constrain, which helps preserve the l...
TMM
2010
13 years 2 months ago
2010
With the exponential growth of Web 2.0 applications, tags have been used extensively to describe the image contents on the Web. Due to the noisy and sparse nature in the human gene...
JMLR
2012
11 years 9 months ago
2012
We prove logarithmic regret bounds that depend on the loss L∗ T of the competitor rather than on the number T of time steps. In the general online convex optimization setting, o...