2070 search results - page 94 / 414 » Querying Communities in Relational Databases |
DKE
2007
14 years 11 months ago
2007
Numerous researchers have proposed to use relational databases to store and query XML documents. In these systems, the elements selected by an XML query are returned to an applica...
100
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SSDBM
2002
IEEE
15 years 4 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...
150
Voted
SIGMOD
2009
ACM
15 years 11 months ago
2009
ACM
Large collections of documents are commonly created around a database, where a typical database schema may contain hundreds of tables and thousands of columns. We developed a syst...
201
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ICDE
2002
IEEE
16 years 14 days ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
125
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PODS
2010
ACM
15 years 4 months ago
2010
ACM
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...