Papers by Heran Wang
Personalized Benchmarking: Evaluating LLMs by Individual Preferences (2026.findings-acl)
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| Challenge: | Current benchmarks average preferences across all users to compute aggregate ratings . this overlooks individual user preferences when establishing model rankings . |
| Approach: | They compute personalized model rankings using ELO ratings and Bradley-Terry coefficients . they find users exhibit substantial heterogeneity in topical interests and communication styles . |
| Outcome: | The results show that individual rankings of LLM models diverge dramatically from aggregate rankings . a compact combination of topic and style features provides a useful feature space . |