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ISMIS
2000
Springer
15 years 1 months ago
2000
Springer
Abstract. The conventional use of databases is commonly restricted to the retrieval of factual data in the form of tuples or records. However most databases also contain metadata i...
157
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SIGMOD
2005
ACM
15 years 9 months ago
2005
ACM
Data integrated from multiple sources may contain inconsistencies that violate integrity constraints. The constraint repair problem attempts to find "low cost" changes t...
AMAST
2008
Springer
14 years 11 months ago
2008
Springer
The authors have proposed using category-theoretic sketches to enhance database design and integration methodologies. The algebraic context is called the Sketch Data Model (SkDM) a...
VLDB
1994
ACM
15 years 1 months ago
1994
ACM
We describe the integration of a structuredtext retrieval system (TextMachine) into an object-oriented database system (OpenODB). We use the external function capability of the da...
151
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ICDE
2004
IEEE
15 years 10 months ago
2004
IEEE
Query optimization in data integration requires source coverage and overlap statistics. Gathering and storing the required statistics presents many challenges, not the least of wh...