237 search results - page 7 / 48 » Efficient Query Processing on the Relational Quadtree |
IS
2007
13 years 7 months ago
2007
Despite the importance of ranked queries in numerous applications involving multi-criteria decision making, they are not efficiently supported by traditional database systems. In ...
CIKM
2006
Springer
13 years 11 months ago
2006
Springer
In an uncertain database, each data item is modeled as a range associated with a probability density function. Previous works for this kind of data have focussed on simple queries...
DASFAA
2004
IEEE
13 years 11 months ago
2004
IEEE
Iceberg queries are a special case of SQL queries involving GROUP BY and HAVING clauses, wherein the answer set is small relative to the database size. We present here a performanc...
VLDB
2005
ACM
14 years 8 months ago
2005
ACM
XML database systems emerge as a result of the acceptance of the XML data model. Recent works have followed the promising approach of building XML database management systems on un...
DAWAK
1999
Springer
14 years 4 days ago
1999
Springer
Efficient query processing is one of the basic needs for data mining algorithms. Clustering algorithms, association rule mining algorithms and OLAP tools all rely on efficient quer...