165 search results - page 15 / 33 » Auditing Sum Queries |
SIGMOD
1997
ACM
13 years 11 months ago
1997
ACM
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
VLDB
2007
ACM
14 years 7 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...
PODS
1999
ACM
13 years 11 months ago
1999
ACM
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
SWAT
1994
Springer
13 years 11 months ago
1994
Springer
We study the complexity of the dynamic partial sum problem in the cell-probe model. We give the model access to nondeterministic queries and prove that the problem remains hard. We...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
Aggregate similarity search, a.k.a. aggregate nearest neighbor (Ann) query, finds many useful applications in spatial and multimedia databases. Given a group Q of M query objects...