@inproceedings{king-etal-2025-hearts,
    title = "{HEARTS}: A Holistic Framework for Explainable, Sustainable and Robust Text Stereotype Detection",
    author = "King, Theo  and
      Wu, Zekun  and
      Koshiyama, Adriano  and
      Kazim, Emre  and
      Treleaven, Philip Colin",
    editor = "Inui, Kentaro  and
      Sakti, Sakriani  and
      Wang, Haofen  and
      Wong, Derek F.  and
      Bhattacharyya, Pushpak  and
      Banerjee, Biplab  and
      Ekbal, Asif  and
      Chakraborty, Tanmoy  and
      Singh, Dhirendra Pratap",
    booktitle = "Proceedings of the 14th International Joint Conference on Natural Language Processing and the 4th Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics",
    month = dec,
    year = "2025",
    address = "Mumbai, India",
    publisher = "The Asian Federation of Natural Language Processing and The Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-ijcnlp-aacl/2025.ijcnlp-long.1/",
    pages = "1--18",
    ISBN = "979-8-89176-298-5",
    abstract = "A stereotype is a generalised claim about a social group. Such claims change with culture and context and are often phrased in everyday language, which makes them hard to detect: the State of the Art Large Language Models (LLMs) reach only 68{\%} macro-F1 on the yes/no task ``does this sentence contain a stereotype?''. We present HEARTS, a Holistic framework for Explainable, sustAinable and Robust Text Stereotype detection that brings together NLP and social-science. The framework is built on the Expanded Multi-Grain Stereotype Dataset (EMGSD), 57201 English sentences that cover gender, profession, nationality, race, religion and LGBTQ+ topics, adding 10{\%} more data for under-represented groups while keeping high annotator agreement ($\kappa = 0.82$). Fine-tuning the lightweight ALBERT-v2 model on EMGSD raises binary detection scores to 81.5{\%} macro-F1, matching full BERT while producing 200$\times$ less CO$_2$. For Explainability, we blend SHAP and LIME token level scores and introduce a confidence measure that increases when the model is correct ($\rho = 0.18$). We then use HEARTS to assess 16 SOTA LLMs on 1050 neutral prompts each for stereotype propagation: stereotype rates fall by 23{\%} between model generations, yet clear differences remain across model families (LLaMA $>$ Gemini $>$ GPT $>$ Claude). HEARTS thus supplies a practical, low-carbon and interpretable toolkit for measuring stereotype bias in language."
}