565 search results - page 60 / 113 » Multiple Range Query Optimization in Spatial Databases |
101
click to vote
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
TJS
2008
14 years 9 months ago
2008
XML is a flexible and powerful tool that enables information and security sharing in heterogeneous environments. Scalable technologies are needed to effectively manage the growing...
131
click to vote
ICDE
2011
IEEE
14 years 1 months ago
2011
IEEE
— In this paper, we study the problem of efficiently computing multiple aggregation queries over a data stream. In order to share computation, prior proposals have suggested ins...
78
Voted
SIGMOD
2011
ACM
14 years 14 days ago
2011
ACM
Ranking queries report the top-K results according to a user-defined scoring function. A widely used scoring function is the weighted summation of multiple scores. Often times, u...
190
click to vote
ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
We present an index structure for managing weightedsequences in large databases. A weighted-sequence is defined as a two-dimensional structure where each element in the sequence i...