929 search results - page 31 / 186 » Answering imprecise database queries: a novel approach |
PVLDB
2010
13 years 6 months ago
2010
We consider the problem of efficiently finding the top-k answers for join queries over web-accessible databases. Classical algorithms for finding top-k answers use branch-and-b...
COMAD
2009
13 years 8 months ago
2009
An ontology is an explicit specification of shared conceptualization. The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies, a...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
Order-based queries over XML data include XPath navigation axes such as following-sibling and following. In this paper, we present holistic algorithms that evaluate such order-bas...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
Due to the existence of uncertain data in a wide spectrum of real applications, uncertain query processing has become increasingly important, which dramatically differs from handl...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
In contrast to classical databases and IR systems, real-world information systems have to deal increasingly with very vague and diverse structures for information management and s...