8 search results - page 2 / 2 » Dynamic Nonuniform Data Approximation in Databases with Haar... |
DEXA
2008
Springer
13 years 6 months ago
2008
Springer
In this research, we propose to use the discrete cosine transform to approximate the cumulative distributions of data cube cells' values. The cosine transform is known to have...
PODS
2004
ACM
14 years 5 months ago
2004
ACM
Several studies have demonstrated the effectiveness of the wavelet decomposition as a tool for reducing large amounts of data down to compact wavelet synopses that can be used to ...
ICDM
2008
IEEE
13 years 11 months ago
2008
IEEE
Event detection is a critical task in sensor networks, especially for environmental monitoring applications. Traditional solutions to event detection are based on analyzing one-sh...