306 search results - page 8 / 62 » Performance of Data-Parallel Spatial Operations |
EDBT
2002
ACM
14 years 7 months ago
2002
ACM
For a spatial database management system, it is an important goal to minimize the I/O-cost of queries and other operations. Several page-replacement strategies have been proposed a...
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
Most exiting array signal processing techniques for bearing estimation are strongly relied on the far-field assumption. When the sources are located close to the array, these tec...
SIGMOD
1998
ACM
13 years 12 months ago
1998
ACM
Two new spatial join operations, distance join and distance semijoin, are introduced where the join output is ordered by the distance betweenthe spatialattribute values ofthe join...
IWMM
2009
Springer
14 years 2 months ago
2009
Springer
Good spatial locality alleviates both the latency and bandwidth problem of memory by boosting the effect of prefetching and improving the utilization of cache. However, convention...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this work we derive the maximum likelihood estimator for passive wavefront curvature ranging systems operating in environments subject to a spatial coherence loss. As a consequ...