297 search results - page 26 / 60 » On the Decidability of Consistent Query Answering |
WIDM
2005
ACM
14 years 2 months ago
2005
ACM
In order to formulate a meaningful XML query, a user must have some knowledge of the schema of the XML documents to be queried. The query will succeed only if the schema of the ac...
VLDB
2001
ACM
14 years 27 days ago
2001
ACM
A range-sum query is very popular and becomes important in finding trends and in discovering relationships between attributes in diverse database applications. It sums over the se...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...
SEMWEB
2009
Springer
14 years 3 months ago
2009
Springer
An important issue for the Semantic Web is how to combine open-world ontology languages with closed-world (non-monotonic) rule paradigms. Several proposals for hybrid languages all...
INFFUS
2007
13 years 8 months ago
2007
Previous approaches in query processing do not consider queries to automatically combine results obtained from different information sources, i.e. they do not support information...