135 search results - page 17 / 27 » Answering aggregate keyword queries on relational databases ... |
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
This paper proposes a strategy to reduce the amount of hardware involved in the solution of search engine queries. It proposes using a secondary compact cache that keeps minimal i...
IDEAS
2003
IEEE
14 years 26 days ago
2003
IEEE
The objective of this paper is to investigate the problems related to the extensional integration of information sources. In particular, we propose an approach for managing incons...
SSDBM
2003
IEEE
14 years 26 days ago
2003
IEEE
The widespread use of sensor networks presents revolutionary opportunities for life and environmental science applications. Many of these applications involve continuous queries t...
ICDT
1990
ACM
13 years 11 months ago
1990
ACM
Ordinary logical implication is not enough for answering queries in a logic database, since especially negative information is only implicitly represented in the database state. M...
CIKM
2011
Springer
12 years 7 months ago
2011
Springer
We consider data exchange for XML documents: given source and target schemas, a mapping between them, and a document conforming to the source schema, construct a target document a...