Datasets › CoNLL 2002
CoNLL 2002
The shared task of CoNLL-2002 concerns language-independent named entity recognition. The types of named entities include: persons, locations, organizations and names of miscellaneous entities that do not belong to the previous three groups. The participants of the shared task were offered training and test data for at least two languages. Information sources other than the training data might have been used in this shared task.
Source: CoNLL 2002 Image Source: https://www.aclweb.org/anthology/W02-2024.pdf
Benchmarks archive 2025-07-28
All 3 leaderboards whose dataset resolves to this page shown (sort by any header). "First row" is the archive's own first row at snapshot, in the archive's row order; nothing here re-ranks and metric direction is not asserted.
| First row (archive order) | Paper | Code | ||||
|---|---|---|---|---|---|---|
| Named Entity Recognition (NER) | CoNLL 2002 (Spanish) | ACE + document-context F1 95.9 | Automated Concatenation of Embeddings for Structured Prediction | Alibaba-NLP/ACE +1 | 6 | Compare |
| Named Entity Recognition (NER) | CoNLL 2002 (Dutch) | ACE + document-context F1 95.7 | Automated Concatenation of Embeddings for Structured Prediction | Alibaba-NLP/ACE +1 | 6 | Compare |
| Token Classification | conll2002 | no rows | — | — | 0 | Compare |
Papers archive 2025-07-28
5 shown of 5 papers with a leaderboard row on this dataset's benchmarks, newest first. The archive's own "papers using this dataset" list was never published, so this is the benchmark-backed subset; the archive's count for this dataset is 70. The Syntology column is from Syntology's graph (read 2026-09-24), stated per sample; it is not part of any archive number.
| Date | Samples run Syntology | |||
|---|---|---|---|---|
| FLERT: Document-Level Features for Named Entity Recognition | 1 | 2 | 13 Nov 2020 | not harvested |
| Automated Concatenation of Embeddings for Structured Prediction | 2 | 4 | 10 Oct 2020 | not harvested |
| Exploring Cross-sentence Contexts for Named Entity Recognition with BERT | 1 | 2 | 2 Jun 2020 | ran 1 of 7 samples (6 unverified) |
| Named Entity Recognition as Dependency Parsing | 1 | 2 | 14 May 2020 | ran 3 of 10 samples (7 unverified) |
| Neural Architectures for Nested NER through Linearization | 1 | 2 | 19 Aug 2019 | not harvested |
Dataset loaders archive 2025-07-28
4 loaders as listed in the archive; links are outbound and not re-checked here.
Tasks archive 2025-07-28
License archive 2025-07-28
Unknown
Modalities archive 2025-07-28
Languages archive 2025-07-28
Variants archive 2025-07-28
- CoNLL 2002 (Spanish)
- CoNLL 2002 (Dutch)
- CoNLL 2002
- conll2002
4 variant names, as the archive lists them.
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