376 search results - page 27 / 76 » On the semantics and evaluation of top-k queries in probabil... |
IDEAS
2005
IEEE
14 years 1 months ago
2005
IEEE
The recent proliferation of XML-based standards and technologies for managing data on the Web demonstrates the need for effective and efficient management of treestructured data....
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
The skyline query returns the most interesting tuples according to a set of explicitly defined preferences among attribute values. This work relaxes this requirement, and allows us...
SUM
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. We present the Consistency Extractor System (ConsEx) that uses answer set programming to compute consistent answers to first-order queries posed to relational databases ...
CIKM
2009
Springer
14 years 15 days ago
2009
Springer
The ability to deal with uncertain information is becoming increasingly important for modern database applications. Whereas a conventional (certain) object is usually represented ...
ICDE
2010
IEEE
14 years 7 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...