815 search results - page 117 / 163 » Ontology-based integration for relational databases |
167
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ICDT
2009
ACM
15 years 10 months ago
2009
ACM
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
IAJIT
2010
14 years 8 months ago
2010
: A broad variety of data is available in distinct heterogeneous sources, stored under different formats: database formats (in relational and object-oriented models), document form...
CLEANDB
2006
ACM
14 years 11 months ago
2006
ACM
An important reality when integrating scientific data is the fact that data may often be "missing", partially specified, or conflicting. Therefore, in this paper, we pre...
159
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
To access data sources on the Web, a crucial step is wrapping, which translates query responses, rendered in textual HTML, back into their relational form. Traditionally, this pro...
168
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ICDE
2002
IEEE
15 years 11 months ago
2002
IEEE
Difference, intersection, semi-join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are...