2859 search results - page 7 / 572 » Querying Complex Structured Databases |
VLDB
2001
ACM
14 years 8 days ago
2001
ACM
Complex similarity queries, i.e., multi-feature multi-object queries, are needed to express the information need of a user against a large multimedia repository. Even if a user in...
PODS
2004
ACM
14 years 8 months ago
2004
ACM
FOCS
2003
IEEE
14 years 1 months ago
2003
IEEE
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
DASFAA
2003
IEEE
14 years 1 months ago
2003
IEEE
The increase in the use of XML (eXtensible Markup Language) makes the semistructured data more and more important on the Web. To exploit the full power of XML documents, a query l...