726 search results - page 5 / 146 » Extended Query Answering Using Integrity Rules |
VLDB
1991
ACM
15 years 1 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...
DLOG
2008
14 years 11 months ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
SEMWEB
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. This paper presents a decidable fragment for combining ontologies and rules in order-sorted logic programming. We describe ordersorted logic programming with sort, predic...
ICMCS
1999
IEEE
15 years 1 months ago
1999
IEEE
The START system responds to natural language queries with answers in text, pictures, and other media. START's sentence-level natural language parsing relies on a number of m...
VLDB
1995
ACM
15 years 1 months ago
1995
ACM
In this paper we introduce generalized projections (GPs), an extension of duplicateeliminating projections, that capture aggregations, groupbys, duplicate-eliminating projections ...