8 search results - page 1 / 2 » XML Query Optimisation: Specify your Selectivity |
DEXAW
2007
IEEE
14 years 2 months ago
2007
IEEE
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...
DOCENG
2004
ACM
14 years 4 months ago
2004
ACM
XPath [16] was introduced by the W3C as a standard language for specifying node selection, matching conditions, and for computing values from an XML document. XPath is now used in...
ICDE
2002
IEEE
15 years 7 days ago
2002
IEEE
XML queries typically specify patterns of selection predicates on multiple elements that have some specified tree structured relationships. The primitive tree structured relations...
EDBT
2002
ACM
14 years 11 months ago
2002
ACM
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
ICDE
2006
IEEE
15 years 7 days ago
2006
IEEE
We tackle the difficult problem of summarizing the path/branching structure and value content of an XML database that comprises both numeric and textual values. We introduce a nov...