861 search results - page 40 / 173 » Relational Completeness of Query Languages for Annotated Dat... |
NAR
2011
14 years 17 days ago
2011
NCBI’s Conserved Domain Database (CDD) is a resource for the annotation of protein sequences with the location of conserved domain footprints, and functional sites inferred from...
170
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ICDT
2009
ACM
15 years 10 months ago
2009
ACM
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
100
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WWW
2007
ACM
15 years 10 months ago
2007
ACM
Schema statements in OWL are interpreted quite differently from analogous statements in relational databases. If these statements are meant to be interpreted as integrity constrai...
110
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NAR
2011
14 years 17 days ago
2011
We describe IsoBase, a database identifying functionally related proteins, across five major eukaryotic model organisms: Saccharomyces cerevisiae, Drosophila melanogaster, Caenorh...
ICDE
1994
IEEE
15 years 1 months ago
1994
IEEE
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...