505 search results - page 23 / 101 » Queries with Incomplete Answers over Semistructured Data |
167
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VLDB
2001
ACM
15 years 9 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...
ICDT
2010
ACM
15 years 1 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
CORR
2011
Springer
14 years 4 months ago
2011
Springer
Contemporary use of the term ’intension’ derives from the traditional logical doctrine that an idea has both an extension and an intension. In this paper we introduce an intens...
PVLDB
2008
14 years 9 months ago
2008
In information extraction, uncertainty is ubiquitous. For this reason, it is useful to provide users querying extracted data with explanations for the answers they receive. Provid...
174
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
Aggregate monitoring over data streams is attracting more and more attention in research community due to its broad potential applications. Existing methods suffer two problems, 1...