35 search results - page 6 / 7 » Estimating aggregates in time-constrained approximate querie... |
SSDBM
2003
IEEE
13 years 10 months ago
2003
IEEE
In many application contexts, like statistical databases, scientific databases, query optimizers, OLAP, and so on, data are often summarized into synopses of aggregate values. Su...
PODS
2007
ACM
14 years 5 months ago
2007
ACM
IP packet streams consist of multiple interleaving IP flows. Statistical summaries of these streams, collected for different measurement periods, are used for characterization of ...
PVLDB
2008
13 years 4 months ago
2008
Summaries of massive data sets support approximate query processing over the original data. A basic aggregate over a set of records is the weight of subpopulations specified as a ...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
Score normalization is indispensable in distributed retrieval and fusion or meta-search where merging of result-lists is required. Distributional approaches to score normalization...
SIGMOD
2007
ACM
14 years 5 months ago
2007
ACM
Sketching techniques can provide approximate answers to aggregate queries either for data-streaming or distributed computation. Small space summaries that have linearity propertie...