42 search results - page 3 / 9 » Evaluating the Cost of Boolean Query Mapping |
EDBT
2004
ACM
14 years 7 months ago
2004
ACM
The join operation, which combines tuples from multiple relations, is the most fundamental and, typically, the most expensive operation in database queries. The standard approach t...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...
EDBT
2009
ACM
13 years 10 months ago
2009
ACM
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...
EDBT
2010
ACM
13 years 10 months ago
2010
ACM
The specification of schema mappings has proved to be time and resource consuming, and has been recognized as a critical bottleneck to the large scale deployment of data integrati...
ICDIM
2008
IEEE
14 years 1 months ago
2008
IEEE
Database Management Systems (DBMS) are complex software systems which are used in an increasing number of applications. To obtain the best performance for business relevant applic...