23 search results - page 1 / 5 » Design and Evaluation of Alternative Selection Placement Str... |
ICDE
2002
IEEE
2002
IEEE
Design and Evaluation of Alternative Selection Placement Strategies in Optimizing Continuous Queries
14 years 6 months ago
In this paper, we design and evaluate alternative selection placement strategies for optimizing a very large number of continuous queries in an Internet environment. Two grouping ...
SEBD
1996
13 years 6 months ago
1996
Abstract. To select an optimal query evaluation strategy for a path query in an object-oriented database system one has to exploit the available index structures on the path. In a ...
SIGMOD
2000
ACM
13 years 9 months ago
2000
ACM
Continuous queries are persistent queries that allow users to receive new results when they become available. While continuous query systems can transform a passive web into an ac...
VLDB
2004
ACM
13 years 10 months ago
2004
ACM
PIVOT and UNPIVOT, two operators on tabular data that exchange rows and columns, enable data transformations useful in data modeling, data analysis, and data presentation. They ca...
ICDE
2005
IEEE
14 years 6 months ago
2005
IEEE
We address the problem of executing continuous multiway join queries in unpredictable and volatile environments. Our query class captures windowed join queries in data stream syst...