429 search results - page 48 / 86 » Unsupervised feature selection for principal components anal... |
IPM
2006
13 years 7 months ago
2006
A methodology for automatically identifying and clustering semantic features or topics in a heterogeneous text collection is presented. Textual data is encoded using a low rank no...
ICPR
2010
IEEE
13 years 5 months ago
2010
IEEE
This paper proposes an evolutionary RBF network classifier for polarimetric synthetic aperture radar ( SAR) images. The proposed feature extraction process utilizes the full covar...
ICPR
2010
IEEE
14 years 1 months ago
2010
IEEE
This paper proposes an evolutionary RBF network classifier for polarimetric synthetic aperture radar ( SAR) images. The proposed feature extraction process utilizes the full covar...
ICPR
2000
IEEE
14 years 2 days ago
2000
IEEE
In this paper we address the object recognition problem in a probabilistic framework to detect and describe object appearance through image features organized by means of active c...
BMCBI
2010
13 years 7 months ago
2010
Background: Nonnegative Matrix Factorization (NMF) is an unsupervised learning technique that has been applied successfully in several fields, including signal processing, face re...