293 search results - page 44 / 59 » Efficiently Querying Relational Databases Using OWL and SWRL |
86
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PODS
1999
ACM
15 years 4 months ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
WWW
2007
ACM
16 years 10 days ago
2007
ACM
In recent years, there has been a prevalence of search engines being employed to find useful information in the Web as they efficiently explore hyperlinks between web pages which ...
106
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SIGMOD
2004
ACM
15 years 11 months ago
2004
ACM
The rich dependency structure found in the columns of real-world relational databases can be exploited to great advantage, but can also cause query optimizers--which usually assum...
TKDE
2011
14 years 6 months ago
2011
— Search queries on biomedical databases, such as PubMed, often return a large number of results, only a small subset of which is relevant to the user. Ranking and categorization...
BMCBI
2006
14 years 11 months ago
2006
Background: Molecular biologists work with DNA databases that often include entire genomes. A common requirement is to search a DNA database to find exact matches for a nondegener...