9 search results - page 2 / 2 » Unbiased estimation of size and other aggregates over hidden... |
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 ...
SIGMOD
2003
ACM
14 years 5 months ago
2003
ACM
Schema matching is a critical problem for integrating heterogeneous information sources. Traditionally, the problem of matching multiple schemas has essentially relied on finding ...
TOIS
2008
13 years 4 months ago
2008
Many valuable text databases on the web have non-crawlable contents that are "hidden" behind search interfaces. Metasearchers are helpful tools for searching over multip...
EUROSYS
2007
ACM
14 years 1 months ago
2007
ACM
We present a memory-aware load balancing (MALB) technique to dispatch transactions to replicas in a replicated database. Our MALB algorithm exploits knowledge of the working sets ...