1851 search results - page 143 / 371 » Querying XML streams |
176
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XSYM
2005
Springer
16 years 1 days ago
2005
Springer
Among various proposals for primitives for deconstructing XML data two approaches seem to clearly stem from practise: path expressions, widely adopted by the database community, an...
170
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SYRCODIS
2007
15 years 7 months ago
2007
Several requirements for algebra suitable for e cient cost-based optimization are presented. It is shown that known XML algebras do not fully satisfy this requirements. A new alge...
270
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ICDE
2004
IEEE
16 years 8 months ago
2004
IEEE
XML and other types of semi-structured data are typically represented by a labeled directed graph. To speed up path expression queries over the graph, a variety of structural inde...
201
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ICDE
2006
IEEE
16 years 18 days ago
2006
IEEE
We consider the problem of query optimization in distributed stream based systems where multiple continuous queries may be executing simultaneously. In such systems, distribution ...
159
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ICDT
2010
ACM
16 years 4 months ago
2010
ACM
Sources of data uncertainty and imprecision are numerous. A way to handle this uncertainty is to associate probabilistic annotations to data. Many such probabilistic database mode...