142 search results - page 23 / 29 » On Conjunctive Query Answering in EL |
ICDT
1995
ACM
14 years 1 months ago
1995
ACM
Partial information in databases can arise when information from several databases is combined. Even if each database is complete for some \world", the combined databases wil...
IJCAI
1997
13 years 11 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 7 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, ...
AICCSA
2005
IEEE
14 years 3 months ago
2005
IEEE
Multidimensional arrays have become very common in scientific and business applications. Such arrays are usually very large and hence they are stored on secondary or tertiary stor...
CIKM
2011
Springer
12 years 9 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 ...