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Expert vs. Crowd Annotator Disagreement Masks Model Performance Variability

A recent study published on arXiv highlights significant disagreements between expert and crowd annotators when evaluating language models. Despite these substantial differences in item-level judgments, the resulting leaderboards for models remain largely identical, suggesting that current aggregation methods obscure underlying variability. The research indicates that the choice of annotator pool can influence a model's perceived performance, and that LLM judges tend to align more with crowd annotators than experts. AI

IMPACT Highlights potential biases in AI model evaluation and the need for more robust benchmarking methodologies.

RANK_REASON The cluster contains a research paper published on arXiv discussing methodology in AI model evaluation. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.CL →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Expert vs. Crowd Annotator Disagreement Masks Model Performance Variability

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The cluster contains a research paper published on arXiv discussing methodology in AI model evaluation. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.CL TIER_1 English(EN) · Anik Jha ·

    Whose Gold? Annotator-Pool Disagreement Is Large at the Item Level, and Hidden by Small Leaderboards

    arXiv:2608.15980v1 Announce Type: new Abstract: Preference benchmarks are built by hiring annotators, and the identity of those annotators is treated as an implementation detail. We measure what that detail buys. On the 2,885 MultiPref items where both pools are internally unanim…