Sciweavers

1061 search results - page 40 / 213
» Integrity Constraints for Linked Data
Sort
View
AICOM
2004
100views more  AICOM 2004»
14 years 11 months ago
Query rewriting with symmetric constraints
Abstract. We address the problem of answering queries using expressive symmetric inter-schema constraints which allow to establish mappings between several heterogeneous informatio...
Christoph Koch
VLDB
2001
ACM
126views Database» more  VLDB 2001»
16 years 2 days ago
Semantic integrity support in SQL: 1999 and commercial (object-)relational database management systems
The correctness of the data managed by database systems is vital to any application that utilizes data for business, research, and decision-making purposes. To guard databases agai...
Can Türker, Michael Gertz
BNCOD
2007
104views Database» more  BNCOD 2007»
15 years 1 months ago
Integrity Checking and Maintenance with Active Rules in XML Databases
While specification languages for integrity constraints for XML data have been considered in the literature, actual technologies and methodologies for checking and maintaining in...
Henning Christiansen, Maria Rekouts
PODS
2010
ACM
197views Database» more  PODS 2010»
15 years 1 days ago
When data dependencies over SQL tables meet the logics of paradox and S-3
We study functional and multivalued dependencies over SQL tables with NOT NULL constraints. Under a no-information interpretation of null values we develop tools for reasoning. We...
Sven Hartmann, Sebastian Link
WWW
2008
ACM
16 years 16 days ago
Integrating the IAC neural network in ontology mapping
Ontology mapping seeks to find semantic correspondences between similar elements of different ontologies. This paper proposes a neural network based approach to search for a globa...
Ming Mao, Yefei Peng, Michael Spring