687 search results - page 19 / 138 » Query Transformation for PSJ-Queries |
DL
1997
Springer
14 years 23 days ago
1997
Springer
Non-uniform query languages make searching over heterogeneous information sources difficult. Our approach is to allow a user to compose Boolean queries in one rich front-end lang...
EDBTW
2006
Springer
14 years 8 days ago
2006
Springer
A data stream management system executes a large number of continuous queries in parallel. As stream characteristics and query workload change over time, the plan initially install...
ICDE
2009
IEEE
13 years 6 months ago
2009
IEEE
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...
PKDD
1998
Springer
14 years 25 days ago
1998
Springer
Knowledge discovery in databases (KDD) is a process that can include steps like forming the data set, data transformations, discovery of patterns, searching for exceptions to a pat...
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...