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» Towards an Integration of Answer Set and Constraint Solving
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SCCC
2005
IEEE
14 years 2 months ago
Optimizing repair programs for consistent query answering
Databases may not satisfy integrity constraints (ICs) for several reasons. Nevertheless, in most of the cases an important part of the data is still consistent wrt certain desired...
Mónica Caniupán Marileo, Leopoldo E....
EDBTW
2006
Springer
14 years 22 days ago
Semantically Correct Query Answers in the Presence of Null Values
For several reasons a database may not satisfy a given set of integrity constraints (ICs), but most likely most of the information in it is still consistent with those ICs; and cou...
Loreto Bravo, Leopoldo E. Bertossi
EICS
2010
ACM
14 years 2 months ago
Collaboratively maintaining semantic consistency of heterogeneous concepts towards a common concept set
In e-business, creating a common concept set for business integration, interoperation and interaction has to consider the heterogeneity reality of different interpretations from m...
Jingzhi Guo, Iok Ham Lam, Chun Chan, Guangyi Xiao
EDBT
2008
ACM
123views Database» more  EDBT 2008»
14 years 9 months ago
XML data integration in SixP2P: a theoretical framework
In the paper we discuss the problem of data integration in a P2P environment. In such setting each peer stores schema of its local data, mappings between the schema and schemas of...
Tadeusz Pankowski
VLDB
2001
ACM
168views Database» more  VLDB 2001»
14 years 9 months ago
Answering queries using views: A survey
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...
Alon Y. Halevy