12 search results - page 2 / 3 » Efficient Processing of Joins on Set-valued Attributes |
ICDE
2003
IEEE
14 years 6 months ago
2003
IEEE
A plethora of data sources contain data entities that could be ordered according to a variety of attributes associated with the entities. Such orderings result effectively in a ra...
TKDE
1998
13 years 4 months ago
1998
—When a multidatabase system contains textual database systems (i.e., information retrieval systems), queries against the global schema of the multidatabase system may contain a ...
WWW
2003
ACM
14 years 5 months ago
2003
ACM
The integration of data produced and collected across autonomous, heterogeneous web services is an increasingly important and challenging problem. Due to the lack of global identi...
SIGMOD
2001
ACM
14 years 5 months ago
2001
ACM
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
IDEAS
2000
IEEE
13 years 9 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...