1018 search results - page 68 / 204 » On the minimization of XPath queries |
ECAI
2000
Springer
15 years 5 months ago
2000
Springer
In this paper, we study unsatisfiable queries posed to a mediator in an information integration system and expressed in the logical formalism of the information integration system...
EDBTW
2006
Springer
15 years 5 months ago
2006
Springer
We consider the problem of querying XML documents which are not valid with respect to given DTDs. We propose a framework for measuring the invalidity of XML documents and compactly...
VLDB
2001
ACM
15 years 6 months ago
2001
ACM
We are interested in de ning and querying views in a huge and highly heterogeneous XML repository Web scale . In this context, view de nitions are very large and there is no appa...
156
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EDBT
2012
ACM
13 years 4 months ago
2012
ACM
Many stream processing applications require access to a multitude of streaming as well as stored data sources. Yet there is no clear semantics for correct continuous query executi...
181
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VLDB
2007
ACM
16 years 1 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...