3377 search results - page 69 / 676 » Describing differences between databases |
148
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KDD
2007
ACM
16 years 2 months ago
2007
ACM
It is becoming increasingly common to construct databases from information automatically culled from many heterogeneous sources. For example, a research publication database can b...
107
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IQ
2007
15 years 3 months ago
2007
Practitioners and researchers often refer to error rates or accuracy percentages of databases. The former is the number of cells in error divided by the total number of cells; the...
152
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PODS
2008
ACM
16 years 2 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
147
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SIGMOD
2011
ACM
14 years 5 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
190
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VLDB
2003
ACM
16 years 2 months ago
2003
ACM
On the Semantic Web, data will inevitably come from many different ontologies, and information processing across ontologies is not possible without knowing the semantic mappings be...