18306 search results - page 3494 / 3662 » Algorithmics in Exponential Time |
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
Existing work in the skyline literature focuses on optimizing the processing cost. This paper aims at minimization of the communication overhead in client-server architectures, wh...
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
Reachability queries on large directed graphs have attracted much attention recently. The existing work either uses spanning structures, such as chains or trees, to compress the c...
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
Ontology matching, aiming to obtain semantic correspondences between two ontologies, has played a key role in data exchange, data integration and metadata management. Among numero...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
Data integration systems offer a uniform interface to a set of data sources. Despite recent progress, setting up and maintaining a data integration application still requires sign...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...