148 search results - page 3 / 30 » Query Selectivity Estimation for Uncertain Data |
ICDE
2007
IEEE
14 years 7 months ago
2007
IEEE
Uncertainty in categorical data is commonplace in many applications, including data cleaning, database integration, and biological annotation. In such domains, the correct value o...
SIGMOD
2008
ACM
14 years 6 months ago
2008
ACM
To deal with data uncertainty, existing probabilistic database systems augment tuples with attribute-level or tuple-level probability values, which are loaded into the database al...
ICDE
2004
IEEE
14 years 7 months ago
2004
IEEE
Queries with (equality or LIKE) selection predicates over string attributes are widely used in relational databases. However, state-of-the-art techniques for estimating selectivit...
IIS
2004
13 years 7 months ago
2004
Estimating the result size of a join is an important query optimization problem as it determines the choice of a good query evaluation strategy. Yet, there are few efficient techni...
DASFAA
2009
IEEE
14 years 1 months ago
2009
IEEE
In Deep Web data integration, some Web database interfaces express exclusive predicates of the form Qe = Pi(Pi ∈ P1, P2, . . . , Pm), which permits only one predicate to be selec...