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172
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SIGMOD
2009
ACM
16 years 1 days ago
2009
ACM
Existing keyword-search systems in relational databases require users to submit a complete query to compute answers. Often users feel "left in the dark" when they have l...
PAKDD
1999
ACM
15 years 4 months ago
1999
ACM
Empirical equations are an important class of regularities that can be discovered in databases. In this paper we concentrate on the role of equations as de nitions of attribute val...
101
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EDBT
2009
ACM
15 years 6 months ago
2009
ACM
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...
TC
1998
15 years 1 months ago
1998
Data integrity policies often require that quality and integrity metadata be generated and communicated to potential users. However, in data warehouses, federations, and other mul...