332 search results - page 49 / 67 » Query Caching and View Selection for XML Databases |
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing ...
ICDE
2005
IEEE
14 years 28 days ago
2005
IEEE
Queries on XML documents typically combine selections on element contents, and, via path expressions, the structural relationships between tagged elements. Efficient support for ...
PODS
2007
ACM
14 years 7 months ago
2007
ACM
The pebble tree automaton and the pebble tree transducer are enhanced by additionally allowing an unbounded number of `invisible' pebbles (as opposed to the usual `visible�...
PODS
2012
ACM
11 years 9 months ago
2012
ACM
Data is increasingly being bought and sold online, and Webbased marketplace services have emerged to facilitate these activities. However, current mechanisms for pricing data are ...
PVLDB
2010
13 years 5 months ago
2010
In this paper, we describe a main memory hybrid database system called HYRISE, which automatically partitions tables into vertical partitions of varying widths depending on how th...