12 search results - page 2 / 3 » Provenance query evaluation: what's so special about it |
DASFAA
2009
IEEE
14 years 1 months ago
2009
IEEE
Abstract. With the increased need of data sharing among multiple organizations, such as government organizations, financial corporations, medical hospitals and academic institution...
DAGSTUHL
1998
13 years 7 months ago
1998
Hypothetical queries are queries embedding hypotheses about the database. The embedded hypothesis in a hypothetical query indicates, so to say, a state of the database intended for...
SP
1997
IEEE
13 years 10 months ago
1997
IEEE
This paper discusses the development of a methodology for reasoning about properties of security policies. We view a security policy as a special case of regulation which specifi...
CORR
2010
Springer
13 years 6 months ago
2010
Springer
Previous work reports about SXSI, a fast XPath engine which executes tree automata over compressed XML indexes. Here, reasons are investigated why SXSI is so fast. It is shown tha...
WWW
2005
ACM
14 years 6 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 ...