721 search results - page 76 / 145 » Supporting top-k join queries in relational databases |
SSDBM
2002
IEEE
15 years 2 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...
VLDB
1991
ACM
15 years 1 months ago
1991
ACM
Most database interfaces provide poor guidance on ad hoc query formulation, burdening users to learn, and to recall precisely the query language and the database. Kaleidoscope avo...
SIGMOD
1999
ACM
15 years 2 months ago
1999
ACM
Query processing in data integration occurs over network-bound, autonomous data sources. This requires extensions to traditional optimization and execution techniques for three re...
ER
2007
Springer
15 years 4 months ago
2007
Springer
Processing a twig pattern query in XML document includes structural search and content search. Most existing algorithms only focus on structural search. They treat content nodes th...
SSDBM
2011
IEEE
14 years 1 months ago
2011
IEEE
Large-scale N-body simulations play an important role in advancing our understanding of the formation and evolution of large structures in the universe. These computations require ...