Authorship Attribution Study on Sadi s Rasael

Rasā’el are the six prose pieces by Sa’dî which are usually published in his oeuvre. Since the first attempts to publish the scientific edition of his oeuvre, the question of these writing’s authorship was central to the topic. Different researchers have done some study on these six treatises and given some answers to the problem of their authorship attribution. It is meant in this dissertation, to quantitatively analyze the Rasā’el using stylometry and authorship attribution techniques and compare it with Golestān - the known work of Sa’dî. We have used two different techniques to do our analysis. The first technique used is characteristic curves proposed by Mendenhall. The second is a quantitative model to explain the repetition and distribution of vocabulary in each piece of writing. Ultimately, our answers fit with the Forughî’s guess about these writings. Three of these writings (Nasîhat ul muluk, Aql o eshq, and ankîyāno) are surely written by Sa’dî. Taqrîrāt-e salāse and dar taqrîr-e dîbāche are not written by Sa’dî. Majāles-e panjgāne’s author isn’t Sa’dî, but it is possible that the content is Sa’dî’s speeches for people.