591 search results - page 57 / 119 » The complexity of XPath query evaluation |
DEXA
2005
Springer
14 years 2 months ago
2005
Springer
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...
LICS
2002
IEEE
14 years 1 months ago
2002
IEEE
We study relations on trees defined by first-order constraints over a vocabulary that includes the tree extension relation Ì Ì ¼, holding if and only if every branch of Ì ex...
SYRCODIS
2008
13 years 10 months ago
2008
In the last few years, XML became a de-facto standard for the exchange of structured and semi-structured data. The database research community took this development into account b...
ICDT
2007
ACM
14 years 2 months ago
2007
ACM
Abstract. In many cases, users may want to consider incomplete answers to their queries. Often, however, there is an overwhelming number of such answers, even if subsumed answers a...
CSB
2005
IEEE
2005
IEEE
BioNavigation: Using Ontologies to Express Meaningful Navigational Queries Over Biological Resources
14 years 2 months ago
Exploiting the complex maze of publicly available Biological resources to implement scientific data collection pipelines poses a multitude of challenges to biologists in accurate...