283 search results - page 48 / 57 » A Semantic Approach to Discovering Schema Mapping Expression... |
DAWAK
2006
Springer
13 years 11 months ago
2006
Springer
More and more integration systems use ontologies to solve the problem of semantic heterogeneities between autonomous databases. To automate the integration process, a number of the...
AAAI
2004
13 years 9 months ago
2004
Representing lexicons and sentences with the subsymbolic approach (using techniques such as Self Organizing Map (SOM) or Artificial Neural Network (ANN)) is a relatively new but i...
DEXA
2009
Springer
14 years 2 months ago
2009
Springer
Describing relational data sources (i.e. databases) by means of ontologies constitutes the foundation of most of the semantic based approaches to data access and integration. In sp...
DRM
2003
Springer
14 years 21 days ago
2003
Springer
In this paper, we present our experiences concerning the enforcement of access rights extracted from ODRL-based digital contracts. We introduce the generalized Contract Schema (Co...
ENTCS
2006
13 years 7 months ago
2006
In this paper we introduce a new approach to formalizing certain type operations in type theory. Traditionally, many type constructors in type theory are independently axiomatized...