OntoTag's linguistic ontologies: improving semantic Web annotations for a better language understanding in machines

Following the road in-between purely linguistic annotation and solely ontology-based annotations for the semantic Web, a hybrid (ontological and linguistic) model and platform, called OntoTag, has been created, aiming at better machine communication, interoperability and language understanding; these capabilities are derived from the incorporation into the platform of a set of linguistic ontologies, the main topic of this paper, suitable for the multileveled and standardized annotation of semantic Web documents.