• Organisation

Seneca’s authorship of Octavia and Hercules Oetaeus is disputed. This study employs established computational stylometry methods based on character n-gram frequencies to investigate this case. Based on a Principal Component Analysis (PCA) of stylistic similarities within the Senecan corpus, Octavia and Phoenissae emerge as outliers, while Hercules Oetaeus only stands out when the text is split in half. Subsequently, applying Bootstrap Consensus Trees (BCT) to a corpus of distractor texts, both disputed plays align with the Senecan cluster/branch. The General Impostors method confidently reports Seneca as the author of the disputed plays under various scenarios. However, upon closer examination of text segments, indications of mixed authorship arise. Based on computational stylometry, it appears that the disputed plays were in large part, but not wholly, written by Seneca.

This paper has been submitted to the conference track of JCLS. It has been peer reviewed and accepted for presentation and discussion at the 3rd Annual Conference of Computational Literary Studies at Vienna, Austria, in June 2024.