620 search results - page 32 / 124 » Optimizing Path Expression Queries of XML Data |
WWW
2001
ACM
16 years 2 months ago
2001
ACM
This poster describes the DQL language : a new XML data manipulation language. DQL is an extension of OQL for the manipulation of tree-like and forest-like data. It integrates XPa...
JCSS
2000
15 years 1 months ago
2000
We investigate a class of path constraints that is of interest in connection with both semistructured and structured data. In standard database systems, constraints are typically ...
136
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ER
2007
Springer
15 years 8 months ago
2007
Springer
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
114
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WIDM
2004
ACM
15 years 7 months ago
2004
ACM
In this paper, we propose a novel compact tree (Ctree) for XML indexing, which provides not only concise path summaries at the group level but also detailed child-parent links at ...
144
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NJC
2006
15 years 1 months ago
2006
Regular tree queries (RTQs) are a class of queries considered especially relevant for the expressiveness and evaluation of XML query languages. The algorithms proposed so far for ...