Datasets › BC4CHEMD
BC4CHEMD (BioCreative IV Chemical compound and drug name recognition)
Introduced by Krallinger et al. in The CHEMDNER corpus of chemicals and drugs and its annotation principles
BC4CHEMD is a collection of 10,000 PubMed abstracts that contain a total of 84,355 chemical entity mentions labeled manually by expert chemistry literature curators.
Benchmarks archive 2025-07-28
All 1 leaderboard 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) | BC4CHEMD | BertForTokenClassification (Spark NLP) F1 94.39 | Accurate clinical and biomedical Named entity... | JohnSnowLabs/spark-nlp-workshop | 7 | Compare |
Papers archive 2025-07-28
6 shown of 6 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 6. 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 | |||
|---|---|---|---|---|
| UniversalNER: Targeted Distillation from Large Language Models for Open Named Entity Recognition | 2 | 1 | 7 Aug 2023 | ran 5 of 12 samples (7 unverified) |
| Accurate clinical and biomedical Named entity recognition at scale | 1 | 1 | 19 Jul 2022 | not harvested |
| BERN2: an advanced neural biomedical named entity recognition and normalization tool | 1 | 1 | 6 Jan 2022 | ran 2 of 2 samples (0 unverified) |
| Biomedical Named Entity Recognition at Scale | 1 | 1 | 12 Nov 2020 | not harvested |
| A Neural Named Entity Recognition and Multi-Type Normalization Tool for Biomedical Text Mining | 1 | 1 | 4 Jun 2019 | not harvested |
| An attention-based BiLSTM-CRF approach to document-level chemical named entity recognition | 1 | 1 | 15 Apr 2019 | not harvested |
Dataset loaders archive 2025-07-28
1 loader as listed in the archive; links are outbound and not re-checked here.
Tasks archive 2025-07-28
License archive 2025-07-28
No licence recorded in the archive. Absence here is not a statement about the dataset's terms.
Modalities archive 2025-07-28
Languages archive 2025-07-28
Variants archive 2025-07-28
- BC4CHEMD
1 variant name, as the archive lists them.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections