1180 search results - page 87 / 236 » A Logical Data Model for Integrated Geographical Databases |
145
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CORR
2008
Springer
15 years 4 months ago
2008
Springer
Many real-world data are maintained in relational format, with different tables storing information about entities and their links or relationships. The structure (schema) of the ...
245
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ICDE
2007
IEEE
16 years 5 months ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...
138
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VLDB
1990
ACM
15 years 8 months ago
1990
ACM
A probabilistic learning model for vague queries and missing or imprecise information in databases is described. Instead of retrieving only a set of answers, our approach yields a...
145
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PODS
2005
ACM
16 years 4 months ago
2005
ACM
Abstract. We present a semantics and answer set programs for relational peer data exchange systems. When a peer answers a query, it exchanges data with other peers in order to supp...
109
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DASFAA
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract. This demonstration presents OntoDB, a prototype that allows to store explicitly in the database not only the data, but also the conceptual model defining the structure o...