Dottorato in FISICA

Titolo della tesi: Generative Models for Inference: an Application to Authorship Attribution

Computer-aided stylometry is a powerful tool in authorship attribution. Recent models can point the author of an anonymous text among thousands or distinguish different contributors to one text. However, most methods are quite complex and depend on the language. We propose a new Authorship Attribution method based on inference using a stochastic process. Every author is associated with the process that is most likely to reproduce their known corpus. We assign a text to the author whose process gives the highest probability of producing the text. We find high attribution rates independent of the language of the text or the tokenisation. Inference using stochastic processes offers exciting opportunities for stylometry and information retrieval.