551 search results - page 25 / 111 » Spectral Analysis |
ICPR
2004
IEEE
15 years 11 months ago
2004
IEEE
Statistical methods, such as independent component analysis, have been successful in learning local low-level features from natural image data. Here we extend these methods for le...
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IGARSS
2009
14 years 7 months ago
2009
We have explored in this paper a framework to test in a quantitative manner the stability of different endmember extraction and spectral unmixing algorithms based on the concept o...
ICCV
2007
IEEE
16 years 11 hour ago
2007
IEEE
Subspace learning based face recognition methods have attracted considerable interests in recent years, including Principal Component Analysis (PCA), Linear Discriminant Analysis ...
CGI
2006
IEEE
15 years 1 months ago
2006
IEEE
In this paper, we apply Nystr
FOCS
2000
IEEE
15 years 2 months ago
2000
IEEE
We motivate and develop a natural bicriteria measure for assessing the quality of a clustering that avoids the drawbacks of existing measures. A simple recursive heuristic is shown...