251 search results - page 9 / 51 » Rewriting Aggregate Queries using Description Logic |
ECAI
2000
Springer
14 years 3 days ago
2000
Springer
The paper presents a prototype of a system for querying the Web in natural language (French) for a limited domain. The domain knowledge, represented in description logics (DL), is ...
ER
2007
Springer
13 years 11 months ago
2007
Springer
The paper presents an unified Description Logic (DL) model for databases. Describing database models using DLs is a fundamental problem in many areas because it turns databases to...
GEOINFORMATICA
2011
13 years 2 months ago
2011
Discovery of suitable web services is a crucial task in Spatial Data Infrastructures (SDI). In this work, we develop a novel approach to the discovery of geoprocessing services (WP...
TCS
1998
13 years 7 months ago
1998
We introduce a new constraint domain, aggregation constraints, that is useful in database query languages, and in constraint logic programming languages that incorporate aggregate...
DLOG
2011
12 years 11 months ago
2011
Abstract. In this paper, we introduce a paraconsistent extension of Rough Description Logics which allows the representation of incomplete and contradictory concepts, as well as th...