400 search results - page 52 / 80 » XML data exchange: consistency and query answering |
ICDE
2011
IEEE
12 years 11 months ago
2011
IEEE
— In this paper, we study the problem of efficiently computing multiple aggregation queries over a data stream. In order to share computation, prior proposals have suggested ins...
PVLDB
2008
13 years 7 months ago
2008
Keyword search is a user-friendly mechanism for retrieving XML data in web and scientific applications. An intuitively compelling but vaguely defined goal is to identify matches t...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
The widespread adoption of XML holds out the promise that document structure can be exploited to specify precise database queries. However, the user may have only a limited knowle...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
FOIKS
2004
Springer
13 years 11 months ago
2004
Springer
When two or more databases are combined into a global one, integrity may be violated even when each database is consistent with its own local integrity constraints. Efficient metho...