550 search results - page 57 / 110 » An Expressive Language for Linear Spatial Database Queries |
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Database system architectures are undergoing revolutionary changes. Most importantly, algorithms and data are being unified by integrating programming languages with the database ...
PODS
1998
ACM
14 years 29 days ago
1998
ACM
We study the complexity of the problem of answering queries using materialized views. This problem has attracted a lot of attention recently because of its relevance in data integ...
ICIW
2008
IEEE
14 years 3 months ago
2008
IEEE
—With the increasing development of real applications using Semantic Web Technologies, it is necessary to provide scalable and efficient ontology querying and reasoning systems....
SIGMOD
2008
ACM
13 years 8 months ago
2008
ACM
The presence of encyclopedic Web sources, such as Wikipedia, the Internet Movie Database (IMDB), World Factbook, etc. calls for new querying techniques that are simple and yet mor...
DEBS
2007
ACM
14 years 20 days ago
2007
ACM
Queries for composite events typically involve the four complementary dimensions of event data, event composition, relationships between events (esp. temporal and causal), and acc...