91 search results - page 15 / 19 » Aggregate Operators in Constraint Query Languages |
IEAAIE
2001
Springer
13 years 12 months ago
2001
Springer
Abstract. This paper presents AROM, a new object-based knowledge representation system. AROM is original in two ways. Firstly, in addition to classes, knowledge representation in A...
HT
2007
ACM
13 years 11 months ago
2007
ACM
The design and maintenance of an aero-engine generates a significant amount of documentation. When designing new engines, engineers must obtain knowledge gained from maintenance o...
OTM
2007
Springer
14 years 1 months ago
2007
Springer
Lightweight ontologies in the form of RDF vocabularies such as SIOC, FOAF, vCard, etc. are increasingly being used and exported by “serious” applications recently. Such vocabul...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Translating data and data access operations between applications and databases is a longstanding data management problem. We present a novel approach to this problem, in which the...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...