251 search results - page 19 / 51 » Rewriting Aggregate Queries using Description Logic |
PODS
2000
ACM
14 years 4 days ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
KRDB
2003
13 years 9 months ago
2003
This paper introduces schema tuple queries and argues for their suitability in representing knowledge over standard relational databases. Schema tuple queries are queries that ret...
PODS
2004
ACM
14 years 8 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
CADE
2000
Springer
14 years 4 days ago
2000
Springer
Abstract. While there has been a great deal of work on the development of reasoning algorithms for expressive description logics, in most cases only Tbox reasoning is considered. I...
DLOG
2003
13 years 9 months ago
2003
In this paper, we introduce RICE, a graphical application for interacting with the description logic inference server Racer. Comparing RICE with OilEd, we address the problem of v...