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Journal article

Schema mapping discovery from data instances.

Abstract:

We introduce a theoretical framework for discovering relationships between two database instances over distinct and unknown schemata. This framework is grounded in the context of data exchange. We formalize the problem of understanding the relationship between two instances as that of obtaining a schema mapping so that a minimum repair of this mapping provides a perfect description of the target instance given the source instance. We show that this definition yields intuitive results when app...

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Publication status:
Published

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Publisher copy:
10.1145/1667053.1667055

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Computer Science
Role:
Author
Journal:
J. ACM
Volume:
57
Issue:
2
Pages:
1-37
Publication date:
2010-01-01
DOI:
EISSN:
1557-735X
ISSN:
0004-5411
Source identifiers:
298084
Language:
English
Keywords:
Pubs id:
pubs:298084
UUID:
uuid:eb666f33-366f-448f-a748-46d6ba5bb2aa
Local pid:
pubs:298084
Deposit date:
2012-12-19

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