204 search results - page 40 / 41 » Shift-invariance in the Discrete Wavelet Transform |
SIGMOD
2001
ACM
14 years 5 months ago
2001
ACM
Similarity search in large time series databases has attracted much research interest recently. It is a difficult problem because of the typically high dimensionality of the data....
TIM
2010
12 years 12 months ago
2010
Abstract--We apply the maximal overlap discrete wavelet transform (MODWT)-based spectral density estimation method to measure heart rate variability (HRV) from short-duration pulse...
MICCAI
2008
Springer
14 years 6 months ago
2008
Springer
In this paper we introduce a tag separation method for better cardiac boundary segmentation and tag tracking. Our approach is based on two observations in the cardiac tagged MR ima...
VLDB
2005
ACM
14 years 5 months ago
2005
ACM
Estimating the selectivity of multidimensional range queries over real valued attributes has significant applications in data exploration and database query optimization. In this p...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
Sensor nodes are small devices that "measure" their environment and communicate feeds of low-level data values to a base station for further processing and archiving. Dis...