Papers by Tim Paek
PrimeX: A Dataset of Worldview, Opinion, and Explanation (2025.emnlp-main)
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| Challenge: | Recent work shows that an individual's worldview -or beliefs about the overall character of the world -can explain persistent behavioral patterns and correlates with personality, well-being, political, religious, and demographic variables. |
| Approach: | They develop a dataset of public opinion survey data from 858 US residents with written explanations from the respondents for why they hold specific opinions and the Primal World Belief survey for assessing respondent worldview. |
| Outcome: | The proposed model can be used to better represent an individual's belief system and improve opinion prediction. |
Improving Language Model Personas via Rationalization with Psychological Scaffolds (2025.findings-emnlp)
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| Challenge: | Existing approaches to building personas rely on a user’s demographic attributes and/or prior judgments, but not on any underlying reasoning behind a person’s judgments. |
| Approach: | They propose a framework that integrates rationales for why a user could have made a certain judgment into LM personas by incorporating potential rationale. |
| Outcome: | The proposed framework outperforms models conditioned on demographic attributes and/or prior judgments on public opinion and movie preference prediction tasks. |