LexOnt: A Semi-automatic Ontology Creation Tool for Programmable Web
Knarig Arabshian, Peter J. Danielsen, Sadia Afroz · 2012
We propose LexOnt, a semi-automatic ontology cre-ation tool for a high-level service classification ontol-ogy. LexOnt uses the Programmable Web directory as the corpus, although it can evolve to use other cor-pora as well. The main contribution of LexOnt is its novel algorithm which generates and ranks frequent terms and significant phrases within a PW category by comparing them to external domain knowledge such as Wikipedia, Wordnet and the current state of the ontol-ogy. First it matches terms to the Wikipedia page de-scription of the category and ranks them higher, since these indicate domain descriptive words. Synonymous words from Wordnet are then matched and ranked. In a semi-automated process, the user chooses the terms it wants to add to the ontology and indicates the properties to assign these values to and the ontology is automati-cally generated. In the next iteration, terms within the current state of the ontology are compared to terms in the other categories and automatic property assignments are made for these API instances as well.