726 search results - page 10 / 146 » Extended Query Answering Using Integrity Rules |
CIKM
1999
Springer
14 years 26 days ago
1999
Springer
We present the architecture and a performance assessment of an extensible query optimizer written in Venus. Venus is a general-purpose active-database rule language embedded in C+...
ICDT
2001
ACM
14 years 1 months ago
2001
ACM
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
VLDB
1997
ACM
14 years 21 days ago
1997
ACM
Information integration systems have to cope with the different and limited query interfaces of the underlying information sources. First, the integration systems need description...
DEXA
2000
Springer
14 years 5 days ago
2000
Springer
This paper is mainly concerned with the extension of database management systems querying capabilities, so that users may address queries involving preferences and get discriminate...
ASP
2005
Springer
14 years 2 months ago
2005
Springer
We present extended conceptual logic programs (ECLPs), for which reasoning is decidable and, moreover, can be reduced to finite answer set programming. ECLPs are useful to reason ...