34170 search results - page 6166 / 6834 » Optimization |
199
click to vote
ICASSP
2011
IEEE
14 years 11 months ago
2011
IEEE
We describe an alternative to standard nonnegative matrix factorisation (NMF) for nonnegative dictionary learning. NMF with the Kullback-Leibler divergence can be seen as maximisa...
227
click to vote
ICDE
2011
IEEE
14 years 11 months ago
2011
IEEE
— Many real-world applications deal with uncertain or missing data, prompting a surge of activity in the area of probabilistic databases. A shortcoming of prior work is the assum...
231
click to vote
ICDE
2011
IEEE
14 years 11 months ago
2011
IEEE
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...
238
click to vote
ICDE
2011
IEEE
14 years 11 months ago
2011
IEEE
— Many data-intensive websites use databases that grow much faster than the rate that users access the data. Such growing datasets lead to ever-increasing space and performance o...
292
click to vote
ICDE
2011
IEEE
14 years 11 months ago
2011
IEEE
— Array database systems are architected for scientific and engineering applications. In these applications, the value of a cell is often imprecise and uncertain. There are at le...