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DEXAW
2007
IEEE
14 years 1 months ago
2007
IEEE
System interoperability is a well known issue, especially for heterogeneous information systems, where ontologybased representations may support automatic and usertransparent inte...
DEXAW
2006
IEEE
14 years 3 months ago
2006
IEEE
Traditional methods for integrity checking in relational or deductive databases heavily rely on the assumption that data have integrity before the execution of updates. In this wa...
DEXAW
2006
IEEE
14 years 3 months ago
2006
IEEE
We study inference rules for multivalued dependencies in relational databases with null values (NMVDs). The definition of NMVDs is dependent on the underlying relation schema and ...
DEXAW
2006
IEEE
13 years 11 months ago
2006
IEEE
A database D may be inconsistent wrt a given set IC of integrity constraints. Consistent Query Answering is the problem of computing from D the answers to a query that are consist...
DEXAW
2006
IEEE
14 years 3 months ago
2006
IEEE
Internet should be used to reduce distances and bring people virtually closer. Using ICT, many people has overcome the problem of digital divided [1] thanks to support of informat...