716 search results - page 85 / 144 » Optimizing Queries in Extended Relational Databases |
ICDT
2007
ACM
15 years 5 months ago
2007
ACM
Abstract. We define and study formal privacy guarantees for information integration systems, where sources are related to a public schema by mappings given by source-to-target dep...
100
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AAAI
2008
15 years 1 months ago
2008
Current search engines cannot effectively rank those relational data, which exists on dynamic websites supported by online databases. In this study, to rank such structured data, ...
195
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ICDE
1998
IEEE
16 years 19 days ago
1998
IEEE
The association of timestamps with various data items such as tuples or attribute values is fundamental to the management of time-varying information. Using intervals in timestamp...
161
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ICDE
1997
IEEE
16 years 19 days ago
1997
IEEE
We propose a data model and a few algebraic operations that provide semantic foundation to multidimensional databases. The distinguishing feature of the proposed model is the symm...
CORR
2008
Springer
14 years 11 months ago
2008
Springer
A purely relational account of the true XQuery semantics can turn any relational database system into an XQuery processor. Compiling nested expressions of the fully compositional X...