319 search results - page 9 / 64 » Unified Solution to Nonnegative Data Factorization Problems |
SIAMSC
2008
13 years 7 months ago
2008
In this study, nonnegative matrix factorization is recast as the problem of approximating a polytope on the probability simplex by another polytope with fewer facets. Working on th...
KDD
2007
ACM
14 years 8 months ago
2007
ACM
The blogosphere has unique structural and temporal properties since blogs are typically used as communication media among human individuals. In this paper, we propose a novel tech...
CLEF
2010
Springer
13 years 8 months ago
2010
Springer
This paper describes the participation of the Bioingenium Research Group in the ad hoc Medical Image Retrieval task for the 2010 ImageCLEF forum. The work aimed to explore semantic...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
We discover communities from social network data, and analyze the community evolution. These communities are inherent characteristics of human interaction in online social network...
CLA
2004
13 years 9 months ago
2004
An important problem in applications of formal concept analysis is a possibly large number of clusters extracted from data. Factorization is one of the methods being used to cope w...