620 search results - page 41 / 124 » Optimizing Path Expression Queries of XML Data |
129
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SDMW
2007
Springer
15 years 8 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
111
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DIWEB
2001
15 years 3 months ago
2001
XPathLog is a logic-based language for manipulating and integrating XML data. It extends the XPath query language with Prolog-style variables. Due to the close relationship with X...
129
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CIKM
2004
Springer
15 years 7 months ago
2004
Springer
Recently, a large amount of work has been done in XML data mining. However, we observed that most of the existing works focus on the snapshot XML data, while XML data is dynamic i...
117
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ICFP
2008
ACM
16 years 1 months ago
2008
ACM
Optimal path queries are queries to obtain an optimal path specified by a given criterion of optimality. There have been many studies to give efficient algorithms for classes of o...
125
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CIKM
2006
Springer
15 years 5 months ago
2006
Springer
By providing an integrated and optimized support for user-defined aggregates (UDAs), data stream management systems (DSMS) can achieve superior power and generality while preservi...