85 search results - page 9 / 17 » Answering queries over incomplete data stream histories |
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Auditing the changes to a database is critical for identifying malicious behavior, maintaining data quality, and improving system performance. But an accurate audit log is a histor...
CIKM
2007
Springer
14 years 2 months ago
2007
Springer
Web search engines consistently collect information about users interaction with the system: they record the query they issued, the URL of presented and selected documents along w...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
In data stream applications, data arrive continuously and can only be scanned once as the query processor has very limited memory (relative to the size of the stream) to work with...
PODS
2003
ACM
14 years 8 months ago
2003
ACM
The sliding window model is useful for discounting stale data in data stream applications. In this model, data elements arrive continually and only the most recent N elements are ...
SIGMOD
2011
ACM
12 years 11 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...