SU@PAN'2015: Experiments in author verification

Stanimir Nikolov, Dobrinka Tabakova, Stefan Savov, Yasen Kiprov, Preslav Nakov

Research output: Contribution to journalArticle


We describe the submission of the Sofia University team for the Author Identification Task, part of the PAN 2015 Challenge. Given a small set of documents by a single person and a "questioned" document, possibly of a different genre and/or topic, the task is to determine whether the questioned document was written by the same person who wrote the known document set. This is a hard but realistic formulation of the task, also known as author verification. We experimented with an SVM classifier using variety of features extracted from publicly available resources. Our solution was among the fastest, and running time was an official evaluation metric; however, our results were not so strong on AUC and C1.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - 2015



  • Author identification
  • Forensic linguistics
  • Machine learning
  • Text mining

ASJC Scopus subject areas

  • Computer Science(all)

Cite this

Nikolov, S., Tabakova, D., Savov, S., Kiprov, Y., & Nakov, P. (2015). SU@PAN'2015: Experiments in author verification. Unknown Journal, 1391.