1059 search results - page 16 / 212 » Improving Semantic Query Answering |
OWLED
2008
13 years 9 months ago
2008
We study conjunctive query answering in the description logic EL, the core of the designated OWL2-EL profile of OWL2. In particular, we present an approach that allows the use of c...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
DLOG
2006
13 years 9 months ago
2006
In our case study we investigate a server for answering OWLQL queries with distinguished variables only (henceforth called OWLQL). This server acts as a proxy that delegates queri...
CORR
2010
Springer
13 years 2 months ago
2010
Springer
Matching dependencies were recently introduced as declarative rules for data cleaning and entity resolution. Enforcing a matching dependency on a database instance identifies the ...
AMW
2010
13 years 9 months ago
2010
Abstract. Consistent query answering (CQA) is about formally characterizing and computing semantically correct answers to queries posed to a database that may fail to satisfy certa...