12. A method of automatically discovering ontology file categories, said method comprising the steps of: a) searching for available semantic data files; b) storing links and content to identified semantic data files; c) generating an ontology file from stored said content for each linked said semantic data file; d) identifying a domain for each said ontology file, said domain being identified from generated ontology files, identifying domains comprising the steps of: i) selecting keywords from said each ontology file, ii) filtering a sense from selected said keywords responsive to a lexical database, wherein filtering senses filters synsets for each keyword, and iii) identifying a domain in said each ontology file from said selected keywords; e) extracting a plurality of ontology file categories from domains identified for said generated ontology files, said ontology file categories being statistically identified automatically from said domains, wherein extracting categories comprises the steps of: A) measuring sense significance from filtered said synsets and providing a context measure of said each ontology file, B) defining a feature set containing significant senses for said each ontology file, C) perusing the said filtered synsets and selecting one sense for said each ontology file, said one sense being a domain representing said each ontology file, D) normalizing contextual significance for all domains, each normalized contextual significance providing a significance value for a respective domain, and E) combining discovered domains and features for generated ontology files responsive to domain significance values; f) providing a training set from generated ontology files, said training set including an instance set, a domain set and a feature set; and g) classifying ontology file instances responsive to said training sets, results of classification indicating automatic category discovery effectiveness.
13. A method as in claim 12 , wherein the step (B) of defining said feature set comprises identifying significant synsets of said each ontology file, each synset representing a domain in an ontology file.