Witpress.tex
Text Categorization Fabrizio SebastianiIstituto di Scienza e Tecnologie dell’InformazioneConsiglio Nazionale delle RicercheVia Giuseppe Moruzzi, 156124 Pisa, ItalyE-mail: [email protected] Abstract Text categorization (also known as text classification, or topic spotting)is the task of automatically sorting a set of documents into categories froma predefined set. This task