, this hardness is conditioned by the ambiguous nature of the natural language used to describe classification categories. In this paper we describe how classification schemes can be converted into OWL ontologies, thus enabling reasoning on them by Semantic Web applications. The proposed solution is based on a

Abstract. Publishing RDF/OWL ontologies on the Semantic Web typically starts by placing the document in a web accessible location and ends with redirects of ontological components (classes, properties, individuals) to that the document. Unfortunately, this is seldom sufficient for expressive OWL

to new versions. Temporal frames using frame versioning and slot versioning are used to take care of dynamic nature of the ontologies. The paper proposes new tags and restructured OWL format enabling the applications to work with the old or new version of ontologies. Gene Ontology, a very dynamic

Abstract. An OWL ontology for quantum mechanics is presented in short. The motivation for its development, structure and characteristic features are depicted. In particular, some essential concepts from the ontology are described. Finally, some problems encountered during the development

Support for ontology evolution is extremely important in ontology engineering and application of ontologies in dynamic environments. A core aspect in the evolution process is the to guarantee consistency of the ontology when changes occur. In this paper we discuss the consistent evolution of OWL

Abstract. An analysis of OWL ontologies represented in RDF/XML on the Web shows that a majority are OWL Full. In many cases this may not be through a desire to use the expressivity provided by OWL Full, but is rather due to syntactic errors or accidental misuse of the vocabulary. We present a

With the advent of Semantic Web languages such as OWL (Web Ontology Language), the expressive Description Logic SHOIN is exposed to a wider audience of ontology users and developers. As an increasingly large number of OWL ontologies become available on the Semantic Web and the descriptions

Abstract. OWL ontologies are complex computational artifacts that are intimately connected with conceptual information and with application issues that are not easily explicable in the context of an OWL document. In this paper, drawing inspiration from literate programming and active essays, I

evolution of OWL ontolo-gies. We present a model for the semantics of change for OWL ontologies, con-sidering structural, logical, and user-defined consistency. We introduce resolution strategies to ensure that consistency is maintained as the ontology evolves. 1

to new versions. Temporal frames using frame versioning and slot versioning are used to take care of dynamic nature of the ontologies. The paper proposes new tags and restructured OWL format enabling the applications to work with the old or new version of ontologies. Gene Ontology, a very dynamic