1236 search results - page 14 / 248 » Robust estimation for sparse data |
KDD
2002
ACM
15 years 10 months ago
2002
ACM
Covariance and correlation estimates have important applications in data mining. In the presence of outliers, classical estimates of covariance and correlation matrices are not re...
104
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CISS
2008
IEEE
15 years 4 months ago
2008
IEEE
—Thus far, sparse representations have been exploited largely in the context of robustly estimating functions in a noisy environment from a few measurements. In this context, the...
ICIP
2009
IEEE
14 years 7 months ago
2009
IEEE
In this paper we describe a robust watermarking scheme for image tampering identification and localization. A compact representation of the image is first produced by assembling a...
INTERSPEECH
2010
14 years 4 months ago
2010
Recent research has shown that speech can be sparsely represented using a dictionary of speech segments spanning multiple frames, exemplars, and that such a sparse representation ...
124
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ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
We design two different strategies for computing the unknown content preferences in an online social network based on a small set of nodes in the corresponding social graph for wh...