1125 search results - page 45 / 225 » Query Answering in Inconsistent Databases |
CIKM
2009
Springer
14 years 11 days ago
2009
Springer
Answering queries using views is a well-established technique in databases. In this context, two outstanding problems can be formulated. The first one consists in deciding whethe...
VLDB
2001
ACM
14 years 5 days ago
2001
ACM
ct Information Integration is among the most important fields in information management. The problem of integrating data from diverse, possibly heterogeneous data sources is ubiqu...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
Due to the existence of uncertain data in a wide spectrum of real applications, uncertain query processing has become increasingly important, which dramatically differs from handl...
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
Uncertain data arises in a number of domains, including data integration and sensor networks. Top-k queries that rank results according to some user-defined score are an important...
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
This paper introduces a formalism to describe the needs and preferences of database users. Because of the precise formulation of these concepts, we have found an automatic and ver...