Value Profiles for Encoding Human Variation

• URL: http://arxiv.org/abs/2503.15484v1
• Date: Wed, 19 Mar 2025 17:57:49 GMT
• Title: Value Profiles for Encoding Human Variation
• Authors: Taylor Sorensen, Pushkar Mishra, Roma Patel, Michael Henry Tessler, Michiel Bakker, Georgina Evans, Iason Gabriel, Noah Goodman, Verena Rieser,
• Abstract summary: We propose representing individuals using value profiles -- natural language descriptions of underlying values compressed from in-context demonstrations.<n>We find that demonstrations contain the most information, followed by value profiles and then demographics.<n>Value profiles offer advantages in terms of scrutability, interpretability, and steerability due to their compressed natural language format.
• Score: 17.23399556310694
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Modelling human variation in rating tasks is crucial for enabling AI systems for personalization, pluralistic model alignment, and computational social science. We propose representing individuals using value profiles -- natural language descriptions of underlying values compressed from in-context demonstrations -- along with a steerable decoder model to estimate ratings conditioned on a value profile or other rater information. To measure the predictive information in rater representations, we introduce an information-theoretic methodology. We find that demonstrations contain the most information, followed by value profiles and then demographics. However, value profiles offer advantages in terms of scrutability, interpretability, and steerability due to their compressed natural language format. Value profiles effectively compress the useful information from demonstrations (>70% information preservation). Furthermore, clustering value profiles to identify similarly behaving individuals better explains rater variation than the most predictive demographic groupings. Going beyond test set performance, we show that the decoder models interpretably change ratings according to semantic profile differences, are well-calibrated, and can help explain instance-level disagreement by simulating an annotator population. These results demonstrate that value profiles offer novel, predictive ways to describe individual variation beyond demographics or group information.

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