144 search results - page 23 / 29 » Sparsity in time-frequency representations |
CVPR
2010
IEEE
15 years 6 months ago
2010
IEEE
We investigate dynamical models of human motion that can
support both synthesis and analysis tasks. Unlike coarser
discriminative models that work well when action classes are ...
SCALESPACE
2005
Springer
15 years 3 months ago
2005
Springer
Level-Set methods have been successfully applied to 2D and 3D boundary detection problems. The geodesic active contour model has been particularly successful. Several algorithms fo...
SDM
2007
SIAM
14 years 11 months ago
2007
SIAM
In recent years, privacy preserving data mining has become very important because of the proliferation of large amounts of data on the internet. Many data sets are inherently high...
108
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TIP
2010
14 years 8 months ago
2010
—We present in this paper a general formulation for nonnegative data factorization, called projective nonnegative graph embedding (PNGE), which 1) explicitly decomposes the data ...
110
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CVPR
2009
IEEE
16 years 4 months ago
2009
IEEE
In this paper, we study the problem of nonnegative graph
embedding, originally investigated in [14] for reaping the
benefits from both nonnegative data factorization and the
spe...