151 search results - page 25 / 31 » Answering approximate queries over autonomous web databases |
DEXA
2007
Springer
14 years 1 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...
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
In order to become an effective complement to traditional Web-scale text-based image retrieval solutions, content-based image retrieval must address scalability and efficiency iss...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
CIKM
2011
Springer
12 years 7 months ago
2011
Springer
We present Nyaya, a system for the management of Semantic-Web data which couples a general-purpose and extensible storage mechanism with efficient ontology reasoning and querying ...
CIDR
2003
13 years 9 months ago
2003
It has frequently been observed that most of the world’s data lies outside database systems. The reason is that database systems focus on structured data, leaving the unstructur...