This paper describe a methodology for semi-automatic classification schema definition (a classification schema is a taxonomy of categories useful for automatic document classification). The methodology is based on: (i) an extensional approach useful to create a typology starting from a document base, and (ii) an intensional approach to build the classification schema starting from the typology. The extensional approach uses clustering techniques to group together documents on the basis of a similarity measure, whereas the intensional approach uses different operations (aggregation, reduction, generalization specialization) to define classes. keywords: ontology, classification schema, fundamentum divisionis, cluster analysis classification task.
@article{arxiv.0910.0735,
title = {A methodology for semi-automatic classification schema building},
author = {Erika De Francesco and Salvatore Iiritano and Antonino Spagnolo and Marco Iannelli},
journal= {arXiv preprint arXiv:0910.0735},
year = {2009}
}