427 search results - page 8 / 86 » Conjunctive Query Answering in EL using a Database System |
WWW
2009
ACM
14 years 8 months ago
2009
ACM
To deal with the problem of empty or too little answers returned from a Web database in response to a user query, this paper proposes a novel approach to provide relevant and rank...
WWW
2010
ACM
14 years 23 days ago
2010
ACM
Typical approaches for querying structured Web Data collect (crawl) and pre-process (index) large amounts of data in a central data repository before allowing for query answering....
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
Queries in object-oriented datab;Lqcs are formulated against a class and retrieve instnnccls of the class sat,isfying a certain predicate on the att,riblltes of the class. The pre...
SEBD
2004
13 years 8 months ago
2004
In this paper we give an overview of the coDB semantically well-founded P2P DB system. A network of databases, possibly with different schemas, are interconnected by means of GLAV ...
VLDB
2001
ACM
14 years 7 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...