3471 search results - page 400 / 695 » Data Stream Query Processing |
184
Voted
ICDE
2007
IEEE
16 years 4 months ago
2007
IEEE
MultiMap is an algorithm for mapping multidimensional datasets so as to preserve the data's spatial locality on disks. Without revealing disk-specific details to applications...
91
Voted
ISI
2007
Springer
15 years 9 months ago
2007
Springer
— Surveillance is an important task for guaranteeing the security of individuals. Being able to intelligently monitor the activity in given spaces is essential to achieve such su...
239
Voted
ICDE
2008
IEEE
16 years 4 months ago
2008
IEEE
Authority flow is an effective ranking mechanism for answering queries on a broad class of data. Systems have been developed to apply this principle on the Web (PageRank and topic ...
209
Voted
SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
197
click to vote
GIS
2006
ACM
16 years 3 months ago
2006
ACM
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...