Disentangling Subjectivity and Uncertainty for Hate Speech Annotation and Modeling using Gaze

Variation is inherent in opinion-based annotation tasks like sentiment or hate speech analysis. It does not only arise from errors, fatigue, or sentence ambiguity but also, for example, from genuine differences in opinion shaped by background, experience, and culture. In this paper, first, we show how annotators' confidence ratings can be of great use for disentangling subjective variation from uncertainty, without relying on specific features present in the data (text, gaze etc.). Our goal is to establish distinctive dimensions of variation which are often not clearly separated in existing work on modeling annotator variation. We illustrate our approach through a hate speech detection task, demonstrating that models are affected differently by instances of uncertainty and subjectivity. In addition, we show that human gaze patterns offer valuable indicators of subjective evaluation and uncertainty.