2859 search results - page 68 / 572 » Querying Complex Structured Databases |
DEBU
2000
13 years 7 months ago
2000
In a traditional information retrieval system, it is assumed that queries can be posed about any topic. In reality, a large fraction of web queries are posed about a relatively sm...
SIGMOD
2000
ACM
14 years 12 days ago
2000
ACM
Continuous queries are persistent queries that allow users to receive new results when they become available. While continuous query systems can transform a passive web into an ac...
IDEAS
2010
IEEE
13 years 6 months ago
2010
IEEE
Even though an effective cost-based query optimizer is of utmost importance for the efficient evaluation of XQuery expressions in native XML database systems, such a component is...
ICDT
2007
ACM
14 years 2 months ago
2007
ACM
We consider random graphs, and their extensions to random structures, with edge probabilities of the form βn−α , where n is the number of vertices, α, β are fixed and α >...
ICDT
2009
ACM
14 years 2 months ago
2009
ACM
Managing inconsistency in databases has long been recognized as an important problem. One of the most promising approaches to coping with inconsistency in databases is the framewo...