83 search results - page 9 / 17 » Tractable Query Answering over Ontologies with Datalog - |
ESWS
2005
Springer
15 years 4 months ago
2005
Springer
As semantic markup becomes ubiquitous, it will become important to be able to ask queries and obtain answers, using natural language (NL) expressions, rather than the keyword-based...
DEXA
2007
Springer
15 years 5 months ago
2007
Springer
The retrieval problem is one of the main reasoning tasks for knowledge base systems. Given a knowledge base K and a concept C, the retrieval problem consists of finding all indivi...
IJCAI
2003
15 years 4 days ago
2003
In this paper, we define a simple but scalable framework for peer-to-peer data sharing systems, in which the problem of answering queries over a network of semantically related p...
ICDT
2010
ACM
15 years 3 months ago
2010
ACM
In XML data exchange, a schema mapping specifies rules for restructuring a source document under the target schema, and queries over the target document must be answered in a way...
SEMWEB
2010
Springer
14 years 8 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...