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DLOG
2003
13 years 9 months ago
Rewriting Aggregate Queries using Description Logic
This paper presents an application of a DL reasoner to the optimization of an object-relational query language. Queries containing aggregate functions are difficult to optimize be...
David DeHaan, David Toman, Grant E. Weddell
IADIS
2003
13 years 9 months ago
Information Retrieval in Digital Libraries Using XML Mediation
Digital libraries are more and more available on the web. However, retrieving information in these libraries is not easy because of sources heterogeneity and distribution. Thus, w...
Laila Benhlima, Dalila Chiadmi
ISCI
2007
90views more  ISCI 2007»
13 years 7 months ago
Database design and querying within the fuzzy semantic model
Fuzzy semantic model (FSM) is a data model that uses basic concepts of semantic modeling and supports handling fuzziness, uncertainty and imprecision of real-world at the attribut...
Rafik Bouaziz, Salem Chakhar, Vincent Mousseau, Su...
FAC
2002
104views more  FAC 2002»
13 years 7 months ago
Deep Semantic Links of TCSP and Object-Z: TCOZ Approach
Formal methods can be used in effective combination only if the semantic links between individual methods are clearly established. This paper discusses the semantic design of TCOZ,...
Brendan P. Mahony, Jin Song Dong
ER
2007
Springer
190views Database» more  ER 2007»
14 years 1 months ago
The CIDOC Conceptual Reference Model - A New Standard for Knowledge Sharing
The tutorial first addresses requirements and semantic problems to integrate digital information into large scale, meaningful networks of knowledge that support not only access to...
Martin Doerr, Christian-Emil Ore, Stephen Stead