5 Results - EMPATH

Empath is a tool for generating high-quality lexical categories (Fast, Chen, and Bernstein 2016). Transforming the bag-of-words into bags of lexical categories reduces the number of dimensions and improves the interpretability of the results.

Ensemble classification on Empath categories predicts character gender with an F1 score of 78.5% (table 5.1). The difference in gender score is larger for male authors compared to female authors (fig. 5.1).

Table 5.1: Predicted character gender using EMPATH categories.

	Predicted Male	Predicted Female
True Male	3988	1012
True Female	1138	3862

Figure 5.1: Character gender score using EMPATH categories.

To examine the interaction between author gender and character writing, I plotted lexical category frequency for male and female characters by author gender.