505 search results - page 3 / 101 » Queries with Incomplete Answers over Semistructured Data |
CIKM
2009
Springer
14 years 10 days ago
2009
Springer
We study the problem of continuous monitoring of top-k queries over multiple non-synchronized streams. Assuming a sliding window model, this general problem has been a well addres...
WEBDB
2000
Springer
13 years 9 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
JCSS
2002
13 years 5 months ago
2002
PODS
2003
ACM
14 years 5 months ago
2003
ACM
DEXAW
2005
IEEE
13 years 7 months ago
2005
IEEE
In this paper, we study semistructured data and indexes preserving inclusion constraints. A semistructured datum is modelled by multi-rooted edge-labeled directed graphs. We consi...