52 search results - page 3 / 11 » Distributed query sampling: a quality-conscious approach |
BMCBI
2011
13 years 6 days ago
2011
Background: Molecular database search tools need statistical models to assess the significance for the resulting hits. In the classical approach one asks the question how probable...
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
Database selection is an important step when searching over large numbers of distributed text databases. The database selection task relies on statistical summaries of the databas...
JMLR
2010
13 years 3 hour ago
2010
While most popular collaborative filtering methods use low-rank matrix factorization and parametric density assumptions, this article proposes an approach based on distribution-fr...
ICDE
2010
IEEE
14 years 5 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
SSD
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. Query optimization is an important functionality of modern database systems and often based on estimating the selectivity of queries before actually executing them. Well-...