Collaborative Authorship Visualization of Yasunari Kawabata's Novel

The present study describes the collaborative writing problem of Hana nikki, a novel published in Yasunari Kawabata's name but suspected to be written by Tsuneko Nakazato. The aim of the present study is to visualize variances between the writing styles of the author (Yasunari Kawabata) and the potential co-author (Tsuneko Nakazato). We performed the rolling-SVM method on the pre-established corpus containing 20 novels of both Yasunari Kawabata and Tsuneko Nakazato. In this study, the character bigrams, parts-of-speech (POS) tag bigrams and word-tag combinations are taken as stylometric features. The probability output of the classification result revealed the boundaries between the writing style variances of Yasunari Kawabata and Tsuneko Nakazato on the three stylometric features.