7607 search results - page 47 / 1522 » Querying data provenance |
PODS
2000
ACM
14 years 2 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
RTCSA
2007
IEEE
14 years 3 months ago
2007
IEEE
RFID middleware systems collect and filter RFID streaming data gathered continuously by numerous readers to process requests from applications. These requests are called continuou...
ICDT
2009
ACM
14 years 10 months ago
2009
ACM
We study the problem of querying data sources that accept only a limited set of queries, such as sources accessible by Web services which can implement very large (potentially inf...
TKDE
2012
12 years 1 days ago
2012
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
DL
1998
Springer
14 years 1 months ago
1998
Springer
This paper reports results from a failure analysis (i.e., incorrect query construction) of 51,473 queries from 18,113 users of Excite, a major Web search engine. Given that many d...