77 search results - page 13 / 16 » Conjunctive Query Answering in SH using Knots |
IJCAI
1997
13 years 8 months ago
1997
Generating query-answering plans for information gathering agents requires to translate a user query, formulated in terms of a set of virtual relations, to a query that uses relat...
ICDT
2010
ACM
14 years 4 months ago
2010
ACM
The work reported here lays the foundations of data exchange in the presence of probabilistic data. This requires rethinking the very basic concepts of traditional data exchange, ...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
-- Searching for medical information on the Web is popular and important. However, medical search has its own unique requirements that are poorly handled by existing medical Web se...
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 ...
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 ...