142 search results - page 10 / 29 » Consistent Query Answers in Inconsistent Databases |
DAGSTUHL
1998
13 years 9 months ago
1998
Hypothetical queries are queries embedding hypotheses about the database. The embedded hypothesis in a hypothetical query indicates, so to say, a state of the database intended for...
DBISP2P
2003
Springer
14 years 24 days ago
2003
Springer
In this paper we give a robust logical and computational characterisation of peer-to-peer (p2p) database systems. We first define a precise model-theoretic semantics of a p2p sys...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
FQAS
1998
Springer
13 years 11 months ago
1998
Springer
Abstract. With more and more electronic information sources becoming widely available, the issue of the quality of these often-competing sources has become germane. We propose a st...
DEXA
2003
Springer
14 years 24 days ago
2003
Springer
XML is rapidly becoming one of the most adopted standard for information representation and interchange over the Internet. With the proliferation of mobile devices of communication...