7576 search results - page 325 / 1516 » On Querying Ontologies and Databases |
159
Voted
DCC
2007
IEEE
16 years 6 months ago
2007
IEEE
Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the data from ...
198
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VLDB
2005
ACM
16 years 8 days ago
2005
ACM
“W3QL: A Query Language for the WWW”, published in 1995, presented a language with several distinctive features. Employing existing indexes as access paths, it allowed the sel...
180
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DASFAA
2010
IEEE
15 years 7 months ago
2010
IEEE
Achieving data security over cooperating web services is becoming a reality, but existing XML access control architectures do not consider this federated service computing. In this...
174
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GEOS
2005
Springer
16 years 9 days ago
2005
Springer
This paper analyses reported difficulties in spatial data retrieval from Internet portals, based on results from an empirical survey. The analysis reveals the problems which cause ...
155
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ECAI
2000
Springer
15 years 11 months ago
2000
Springer
The paper presents a prototype of a system for querying the Web in natural language (French) for a limited domain. The domain knowledge, represented in description logics (DL), is ...