354 search results - page 12 / 71 » Efficient Processing of Spatial Joins Using R-Trees |
DATESO
2008
13 years 8 months ago
2008
Abstract In recent years, many approaches to indexing XML data have appeared. These approaches attempt to process XML queries efficiently and sufficient query plans are built for t...
DEXA
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. Finding all occurrences of a twig pattern in an XML document is a core operation for XML query processing. The emergence of XML as a common mark-up language for data inte...
ICDE
2003
IEEE
14 years 8 months ago
2003
IEEE
We investigate algorithms for evaluating moving window joins over pairs of unbounded streams. We introduce a unit-time-basis cost model to analyze the expected performance of thes...
ICDE
2002
IEEE
14 years 8 months 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...
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
In data integration applications, a join matches elements that are common to two data sources. Often, however, elements are represented slightly different in each source, so an app...