339 search results - page 2 / 68 » Improved Query Performance with Variant Indexes |
APWEB
2004
Springer
13 years 10 months ago
2004
Springer
In a state-of-the-art XML database, an XML query is evaluated as a sequence of structural joins in which positions of data nodes are used to perform each individual structural joi...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
Bitmap indexes are widely used in Decision Support Systems (DSSs) to improve query performance. In this paper, we evaluate the use of compressed inverted indexes with adapted quer...
CIARP
2003
Springer
13 years 10 months ago
2003
Springer
The problem of Prepositional Phrase (PP) attachment disambiguation consists in determining if a PP is part of a noun phrase, as in He sees the room with books, or an argument of a ...
ADC
2009
Springer
13 years 11 months ago
2009
Springer
In this work an R-tree variant, which uses minimum volume covering ellipsoids instead of usual minimum bounding rectangles, is presented. The most significant aspects, which dete...
SAC
2006
ACM
13 years 11 months ago
2006
ACM
This paper introduces the MTree index algorithm, a special purpose XML XPath index designed to meet the needs of the hierarchical XPath query language. With the increasing importa...