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The Simple Semantic Classifier classifies short chunks of natural language text into broad semantic classes that correspond to the OBO ontologies provided as input.
OntoExtractor is a way of building ontologies that proceeds in a bottom-up fashion, defining concepts as clusters of concrete XML objects. From a set of XML documents the application generates a taxonomy. OntoExtractor has been developed so far by the Kn
The project aims at developing and maintaining owlutils - a collection of unixish command-line utilities for processing ontologies stored in owl files.
The Semantic Web Service Composer is a prototyp for semi-automatic data flow design between Semantic Web services described in different domain ontologies. More info: http://citeseer.ist.psu.edu/viewdoc/versions?doi=10.1.1.60.9276
PROMI is a Platform for the Reuse of Ontologies through Merging and Integration. It imports ontologies represented as OWL, RDF(S), DDL, DTD and XML schemas and incrementally merges their contents using various matching algorithms.
The ROSE reasoner is used to for reasoning with RDFS ontologies and currently supports the RDF, RDFS and eRDFS entailment regimes.
An online demo of the RDFS Reasoner can be found here: http://tools.deri.org/rdfs-reasoner/