200 search results - page 5 / 40 » Datalog Queries of Set Constraint Databases |
DEDUCTIVE
1997
13 years 8 months ago
1997
We present a query language, called the Datalog++ , for deductive object-oriented databases. While a direct semantics for inheritance with overriding and encapsulation is desirabl...
PODS
2006
ACM
14 years 7 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
JAR
2007
13 years 7 months ago
2007
As applications of description logics proliferate, efficient reasoning with knowledge bases containing many assertions becomes ever more important. For such cases, we developed a n...
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
In this paper we argue that developing information extraction (IE) programs using Datalog with embedded procedural extraction predicates is a good way to proceed. First, compared ...
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
Many Web applications are based on dynamic interactions between Web components exchanging flows of information. Such a situation arises for instance in mashup systems or when moni...