750 search results - page 25 / 150 » Aggregates in Possibilistic Databases |
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
ICDE
1999
IEEE
14 years 8 months ago
1999
IEEE
The ability to model the temporal dimension is essential to many applications. Furthermore, the rate of increase in database size and response time requirements has outpaced advan...
EDBT
2006
ACM
14 years 6 months ago
2006
ACM
Business Intelligence solutions, encompassing technologies such as multi-dimensional data modeling and aggregate query processing, are being applied increasingly to non-traditional...
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 ...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Window queries are proving essential to data-stream processing. In this paper, we present an approach for evaluating sliding-window aggregate queries that reduces both space and c...