427 search results - page 59 / 86 » Conjunctive Query Answering in EL using a Database System |
VLDB
2001
ACM
14 years 1 months ago
2001
ACM
A range-sum query is very popular and becomes important in finding trends and in discovering relationships between attributes in diverse database applications. It sums over the se...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...
PVLDB
2010
13 years 7 months ago
2010
Users who are unfamiliar with database query languages can search XML data sets using keyword queries. Previous work has shown that current XML keyword search methods, although in...
EDBT
2009
ACM
14 years 15 days ago
2009
ACM
Many websites with a large user base, e.g., websites of nonprofit organizations, do not have the financial means to install large web-servers or use specialized content distributi...
DEXA
2007
Springer
14 years 2 months ago
2007
Springer
The semantic web is based on ontologies and metadata that indexes resources using ontologies. This indexing is called annotation. Ontology based information retrieval is an operati...