3836 search results - page 67 / 768 » Semantics of Database Transformations |
SIGMOD
1995
ACM
14 years 1 months ago
1995
ACM
When querying a temporal database, a user often makes certain semantic assumptions on stored temporal data. This paper formalizes and studies two types of semantic assumptions: po...
AMAI
2007
Springer
13 years 10 months ago
2007
Springer
Abstract In many scenarios, a database instance violates a given set of integrity constraints. In such cases, it is often required to repair the database, that is, to restore its c...
DEXAW
2009
IEEE
14 years 4 months ago
2009
IEEE
— The amount of semantic data on the Web has increased exponentially in the last years. One of the main reasons for this is the use of RDB2RDF systems, which generate RDF data fr...
SAC
2010
ACM
14 years 5 months ago
2010
ACM
Today’s Semantic Web datasets become increasingly larger containing up to several hundred million triples. The performance of index construction is a crucial factor for the succ...
ICDE
2006
IEEE
14 years 4 months ago
2006
IEEE
Schema matching has been historically difficult to automate. Most previous studies have tried to find matches by exploiting information on schema and data instances. However, sche...