325 search results - page 18 / 65 » On Clusterings - Good, Bad and Spectral |
ICIP
2009
IEEE
14 years 9 months ago
2009
IEEE
An unsupervised seabed segmentation algorithm for synthetic aperture sonar (SAS) imagery is proposed. Each 2 m ? 2 m area of seabed is treated as a unique data point. A set of fea...
EMNLP
2009
13 years 6 months ago
2009
We present a novel approach for multilingual document clustering using only comparable corpora to achieve cross-lingual semantic interoperability. The method models document colle...
MICCAI
2008
Springer
14 years 9 months ago
2008
Springer
Abstract. Structural imaging investigations commonly apply a segmentation step followed by the extraction of feature data that can be used to compare or discriminate groups. We pre...
MICCAI
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. Image segmentation algorithms derived from spectral clustering analysis rely on the eigenvectors of the Laplacian of a weighted graph obtained from the image. The NCut cr...
CORR
2008
Springer
13 years 8 months ago
2008
Springer
We address the problem of determining a natural local neighbourhood or "cluster" associated to a given seed vertex in an undirected graph. We formulate the task in terms...