1000 search results - page 38 / 200 » Provenance for Aggregate Queries |
UAI
2007
13 years 11 months ago
2007
A research organization responds to a variety of customer requests. Each high level request is broken down into a set of low level requests. For each low level request, the resear...
VLDB
2007
ACM
14 years 10 months ago
2007
ACM
As more sensitive data is captured in electronic form, security becomes more and more important. Data encryption is the main technique for achieving security. While in the past en...
WWW
2009
ACM
14 years 4 months ago
2009
ACM
Since more and more business data are represented in XML format, there is a compelling need of supporting analytical operations in XML queries. Particularly, the latest ver
WWW
2005
ACM
14 years 10 months ago
2005
ACM
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 some ...
ICWS
2009
IEEE
14 years 7 months ago
2009
IEEE
Environments in which Web service compositions (WSC) operate are often dynamic. We address the problem of which service to query for up-to-date information in order to adapt a hie...