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» Answering order-based queries over XML data
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ICDE
2003
IEEE
146views Database» more  ICDE 2003»
14 years 8 months ago
Navigation- vs. Index-Based XML Multi-Query Processing
XML path queries form the basis of complex filtering of XML data. Most current XML path query processing techniques can be divided in two groups. Navigation-based algorithms compu...
Nicolas Bruno, Luis Gravano, Nick Koudas, Divesh S...
BXML
2003
13 years 8 months ago
Querying transformed XML documents: Determining a sufficient fragment of the original document
Large XML documents which are stored in an XML database can be transformed further by an XSL processor using an XSLT stylesheet. In order to answer an XPath query based on the tran...
Sven Groppe, Stefan Böttcher
PODS
2010
ACM
242views Database» more  PODS 2010»
14 years 14 days ago
Certain answers for XML queries
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Claire David, Leonid Libkin, Filip Murlak
JDCTA
2010
151views more  JDCTA 2010»
13 years 2 months ago
Research on Querying Node Probability Method in Probabilistic XML Data Based on Possible World
In order to solve the low efficiency problem of directly querying single node probability in the set of all ordinary XML data obtained by enumerating possible world set of the cor...
Jianwei Wang, Zhongxiao Hao
DEXAW
2007
IEEE
124views Database» more  DEXAW 2007»
13 years 11 months ago
XML Query Optimisation: Specify your Selectivity
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...
Sven Hartmann, Sebastian Link