Hateful Person or Hateful Model? Investigating the Role of Personas in Hate Speech Detection by Large Language Models

Fuente: arXiv
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Autori principali: Yuan, Shuzhou, Nie, Ercong, Tawfelis, Mario, Schmid, Helmut, Schütze, Hinrich, Färber, Michael
Natura: Preprint
Pubblicazione: 2025
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author Yuan, Shuzhou
Nie, Ercong
Tawfelis, Mario
Schmid, Helmut
Schütze, Hinrich
Färber, Michael
author_facet Yuan, Shuzhou
Nie, Ercong
Tawfelis, Mario
Schmid, Helmut
Schütze, Hinrich
Färber, Michael
contents Hate speech detection is a socially sensitive and inherently subjective task, with judgments often varying based on personal traits. While prior work has examined how socio-demographic factors influence annotation, the impact of personality traits on Large Language Models (LLMs) remains largely unexplored. In this paper, we present the first comprehensive study on the role of persona prompts in hate speech classification, focusing on MBTI-based traits. A human annotation survey confirms that MBTI dimensions significantly affect labeling behavior. Extending this to LLMs, we prompt four open-source models with MBTI personas and evaluate their outputs across three hate speech datasets. Our analysis uncovers substantial persona-driven variation, including inconsistencies with ground truth, inter-persona disagreement, and logit-level biases. These findings highlight the need to carefully define persona prompts in LLM-based annotation workflows, with implications for fairness and alignment with human values.
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id arxiv_https___arxiv_org_abs_2506_08593
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hateful Person or Hateful Model? Investigating the Role of Personas in Hate Speech Detection by Large Language Models
Yuan, Shuzhou
Nie, Ercong
Tawfelis, Mario
Schmid, Helmut
Schütze, Hinrich
Färber, Michael
Computation and Language
Hate speech detection is a socially sensitive and inherently subjective task, with judgments often varying based on personal traits. While prior work has examined how socio-demographic factors influence annotation, the impact of personality traits on Large Language Models (LLMs) remains largely unexplored. In this paper, we present the first comprehensive study on the role of persona prompts in hate speech classification, focusing on MBTI-based traits. A human annotation survey confirms that MBTI dimensions significantly affect labeling behavior. Extending this to LLMs, we prompt four open-source models with MBTI personas and evaluate their outputs across three hate speech datasets. Our analysis uncovers substantial persona-driven variation, including inconsistencies with ground truth, inter-persona disagreement, and logit-level biases. These findings highlight the need to carefully define persona prompts in LLM-based annotation workflows, with implications for fairness and alignment with human values.
title Hateful Person or Hateful Model? Investigating the Role of Personas in Hate Speech Detection by Large Language Models
topic Computation and Language
url https://arxiv.org/abs/2506.08593