736 search results - page 5 / 148 » Answering Imprecise Queries over Web Databases |
VLDB
2000
ACM
13 years 11 months ago
2000
ACM
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
PODS
2003
ACM
14 years 7 months ago
2003
ACM
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
SSDBM
1999
IEEE
13 years 12 months ago
1999
IEEE
On-Line Analytical Processing (OLAP) technologies are being used widely, but the lack of effective means of handling data imprecision, which occurs when exact values are not known...