@inproceedings{koncel-kedziorski-etal-2025-primex,
    title = "{P}rime{X}: A Dataset of Worldview, Opinion, and Explanation",
    author = "Koncel-Kedziorski, Rik  and
      Joshi, Brihi  and
      Paek, Tim",
    editor = "Christodoulopoulos, Christos  and
      Chakraborty, Tanmoy  and
      Rose, Carolyn  and
      Peng, Violet",
    booktitle = "Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing",
    month = nov,
    year = "2025",
    address = "Suzhou, China",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/2025.emnlp-main.1256/",
    pages = "24747--24772",
    ISBN = "979-8-89176-332-6",
    abstract = "As the adoption of language models advances, so does the need to better represent individual users to the model. Are there aspects of an individual{'}s belief system that a language model can utilize for improved alignment? Following prior research, we investigate this question in the domain of opinion prediction by developing PrimeX, a dataset of public opinion survey data from 858 US residents with two additional sources of belief information: written explanations from the respondents for why they hold specific opinions, and the Primal World Belief survey for assessing respondent worldview. We provide an extensive initial analysis of our data and show the value of belief explanations and worldview for personalizing language models. Our results demonstrate how the additional belief information in PrimeX can benefit both the NLP and psychological research communities, opening up avenues for further study."
}