630 search results - page 2 / 126 » Optimized union of non-disjoint distributed data sets |
EDBT
2010
ACM
14 years 4 days ago
2010
ACM
The goal of data fusion is to combine several representations of one real world object into a single, consistent representation, e.g., in data integration. A very popular operator...
CONCURRENCY
2002
13 years 5 months ago
2002
ICDE
2005
IEEE
14 years 7 months ago
2005
IEEE
We consider the problem of maintaining frequency counts for items occurring frequently in the union of multiple distributed data streams. Na?ive methods of combining approximate f...
DBPL
1999
Springer
13 years 10 months ago
1999
Springer
Semistructured databases are treated as dynamically typed: they come equipped with no independent schema or type system to constrain the data. Query languages that are designed fo...
PODS
2010
ACM
13 years 10 months ago
2010
ACM
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...