Reproduce “CleanCoNLL: A Nearly Noise-Free Named Entity Recognition Dataset” on OpenResearch

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About this paper

Susanna Rücker, Alan Akbik

CleanCoNLL revises CoNLL-03 labels for named-entity recognition by adding Wikipedia links and combining them with model-based cross-checks and human review. For example, it changes William Hill from person to organization. Among sampled FLERT prediction errors, annotation errors fell from 47% on original CoNLL-03 to 6% on CleanCoNLL; these figures describe reviewed errors, not corpus-wide error rates.

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