Ontological Engineering refers to the set of activities that concern the ontology development
process, the ontology life cycle, the methods and methodologies for building ontologies, and …

The expressivity of RDF and RDF Schema that was described in [12] is deliberately very
limited: RDF is (roughly) limited to binary ground predicates, and RDF Schema is (again …

The OWL Web Ontology Language is a new formal language for representing ontologies in
the Semantic Web. OWL has features from several families of representation languages …

XML and RDF are the current standards for establishing semantic interoperability on the
Web, but XML addresses only document structure. RDF better facilitates interoperation …

Researchers in artificial intelligence first developed ontologies to facilitate knowledge
sharing and reuse. Ontologies play a major role in supporting information exchange across …

Ontologies play a prominent role on the Semantic Web. They make possible the widespread
publication of machine understandable data, opening myriad opportunities for automated …

This chapter studies ontology matching: the problem of finding the semantic map**s
between two given ontologies. This problem lies at the heart of numerous information …

Abstract Knowledge extraction is meant by acquiring relevant information from the
unstructured document in natural language and representing them in a structured form …

We may be poised for the next major evolution of online environments. In the early days of
the Web, HTML pages were generated by hand. The pages contained information about …

The Knowledge Grid is an intelligent and sustainable interaction environment that consists
of autonomous individuals, self-organized semantic communities, adaptive networking …