4955 search results - page 363 / 991 » Ontologies and the semantic web |
142
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SEMWEB
2007
Springer
16 years 25 days ago
2007
Springer
In this paper we address the problem of migrating instances between heterogeneous overlapping ontologies. The instance migration problem arises when one wants to reclassify a set o...
167
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ITS
2004
Springer
16 years 2 days ago
2004
Springer
Abstract. There have been several attempts to automate knowledge acquisition for ITSs that teach procedural tasks. The goal of our project is to automate the acquisition of domain ...
209
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SSDBM
2002
IEEE
15 years 11 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
174
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DLOG
2010
15 years 4 months ago
2010
Abstract. Ontologies undergo changes for reasons such as changes in knowledge, meeting varying application requirements. Thus, for different versions of a considered ontology, it i...
196
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SEMWEB
2010
Springer
15 years 4 months ago
2010
Springer
Abstract. A key problem in ontology alignment is that different ontological features (e.g., lexical, structural or semantic) vary widely in their importance for different ontology ...