435 search results - page 25 / 87 » Querying Inconsistent Databases: Algorithms and Implementati... |
VLDB
2007
ACM
14 years 9 months ago
2007
ACM
Databases are increasingly being used to store information covered by heterogeneous policies, which require support for access control with great flexibility. This has led to incr...
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
Ranking queries are essential tools to process large amounts of probabilistic data that encode exponentially many possible deterministic instances. In many applications where unce...
ADBIS
2003
Springer
14 years 2 months ago
2003
Springer
Data mining queries are often submitted concurrently to the data mining system. The data mining system should take advantage of overlapping of the mined datasets. In this paper we ...
PLANX
2008
13 years 10 months ago
2008
We investigate the complexity of earliest query answering for n-ary node selection queries defined by streaming tree automata (STAs). We elaborate an algorithm that selects query ...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
Relational division, also known as small divide, is a derived operator of the relational algebra that realizes a many-to-one set containment test, where a set is represented as a ...