750 search results - page 21 / 150 » Aggregates in Possibilistic Databases |
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
We present HERMES, a prototype system based on a powerful query language for trajectory databases, which enables the support of aggregative Location-Based Services (LBS). The key ...
EUSFLAT
2001
13 years 8 months ago
2001
Flexible querying aims at expressing preferences inside queries instead of strict requirements. We consider ordinary relational databases and flexible querying calling on fuzzy se...
VLDB
2001
ACM
13 years 11 months ago
2001
ACM
DOLAP
2000
ACM
13 years 11 months ago
2000
ACM
A multidimensional database can be seen as a collection of multidimensional cubes, from which information is usually extracted by aggregation; aggregated data can be calculated ei...
SIGMOD
2011
ACM
12 years 9 months ago
2011
ACM
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...