1497 search results - page 72 / 300 » Constraint Databases: A Survey |
ICDT
2007
ACM
15 years 4 months ago
2007
ACM
Abstract. Schema mappings play a central role in both data integration and data exchange, and are understood as high-level specifications describing the relationships between data...
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ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
We present a technique for refining the design of relational storage for XML data based on XML key propagation. Three algorithms are presented: one checks whether a given function...
ICDT
2003
ACM
15 years 3 months ago
2003
ACM
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...
ADBIS
2001
Springer
15 years 2 months ago
2001
Springer
Data mining is an interactive and iterative process. It is very likely that a user will execute a series of similar queries differing in pattern constraints and mining parameters,...
ICDT
2001
ACM
15 years 2 months ago
2001
ACM
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...