1263 search results - page 34 / 253 » A Scalable Algorithm for Answering Queries Using Views |
IWMMDBMS
1996
13 years 9 months ago
1996
The maintenance of large raster images under spatial operations is still a major performance bottleneck. For reasons of storage space, images in a collection, such as satellite pi...
DLOG
2011
13 years 42 min ago
2011
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
MOBICOM
2000
ACM
14 years 25 days ago
2000
ACM
—Caching frequently accessed data items on the client side is an effective technique for improving performance in a mobile environment. Classical cache invalidation strategies ar...
DIS
2006
Springer
14 years 4 days ago
2006
Springer
The purpose of this paper is two-fold: First, we give efficient algorithms for answering itemset support queries for collections of itemsets from various representations of the fre...
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
Querying XML data is a well-explored topic with powerful databasestyle query languages such as XPath and XQuery set to become W3C standards. An equally compelling paradigm for que...