561 search results - page 43 / 113 » Algorithms and applications for approximate nonnegative matr... |
CISS
2008
IEEE
14 years 2 months ago
2008
IEEE
—Thus far, sparse representations have been exploited largely in the context of robustly estimating functions in a noisy environment from a few measurements. In this context, the...
COLOGNETWENTE
2008
13 years 9 months ago
2008
We consider combinatorial optimization problems arising in radiation therapy. Given a matrix I with non-negative integer entries, we seek for a decomposition of I as a weighted su...
SIBGRAPI
2005
IEEE
14 years 1 months ago
2005
IEEE
This article presents a new method for discovering hidden patterns in high-dimensional dataset resulting from image registration. It is based on true factor analysis, a statistica...
APPROX
2004
Springer
14 years 1 months ago
2004
Springer
In this paper we investigate the computational complexity of a combinatorial problem that arises in the reverse engineering of protein and gene networks. Our contributions are as ...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
In most IR clustering problems, we directly cluster the documents, working in the document space, using cosine similarity between documents as the similarity measure. In many real...