27756 search results - page 245 / 5552 » Process Query Systems |
137
Voted
JSS
2008
15 years 3 months ago
2008
XML data can be represented by a tree or graph structure and XML query processing requires the information of structural relationships among nodes. The basic structural relationsh...
116
click to vote
VLDB
1995
ACM
15 years 6 months ago
1995
ACM
New demandsare put on query processing in Object-Oriented(00) databasesto provide efficient andrelationally completequery languages. A flexible 00 data model requires overloading ...
150
click to vote
SSDBM
2002
IEEE
15 years 8 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
139
Voted
PVLDB
2010
15 years 1 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...