Named Entity Recognition (NER) on ACE 2004

Metric: F1 (higher is better)

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#	Model↕	F1▼	Extra Data	Paper	Date↕	Code
1	Ours: cross-sentence ALB	90.3	No	A Frustratingly Easy Approach for Entity and Rel...	2020-10-24	Code
2	PromptNER [RoBERTa-large]	88.72	No	PromptNER: Prompt Locating and Typing for Named ...	2023-05-26	Code
3	BINDER	88.7	No	Optimizing Bi-Encoder for Named Entity Recogniti...	2022-08-30	Code
4	Triaffine + ALBERT	88.56	No	Fusing Heterogeneous Factors with Triaffine Mech...	2021-10-14	Code
5	DiffusionNER	88.39	No	DiffusionNER: Boundary Diffusion for Named Entit...	2023-05-22	Code
6	PromptNER [BERT-large]	88.16	No	PromptNER: Prompt Locating and Typing for Named ...	2023-05-26	Code
7	PIQN	88.14	No	Parallel Instance Query Network for Named Entity...	2022-03-20	Code
8	PIQN	88.14	No	Parallel Instance Query Network for Named Entity...	2022-03-20	Code
9	CNN-NER	88.03	No	An Embarrassingly Easy but Strong Baseline for N...	2022-08-09	Code
10	Baseline + BS	87.98	No	Boundary Smoothing for Named Entity Recognition	2022-04-26	Code
11	Hashing	87.93	No	To be Continuous, or to be Discrete, Those are B...	2024-06-12	Code
12	W2NER	87.52	No	Unified Named Entity Recognition as Word-Word Re...	2021-12-19	Code
13	Locate and Label	87.41	No	Locate and Label: A Two-stage Identifier for Nes...	2021-05-14	Code
14	Triaffine + BioBERT	87.4	No	Fusing Heterogeneous Factors with Triaffine Mech...	2021-10-14	Code
15	Sequence-to-Set	87.26	No	A Sequence-to-Set Network for Nested Named Entit...	2021-05-19	Code
16	BARTNER	86.84	No	A Unified Generative Framework for Various NER S...	2021-06-02	Code
17	Biaffine-NER	86.7	No	Named Entity Recognition as Dependency Parsing	2020-05-14	Code
18	PO-TreeCRFs	86.6	No	Nested Named Entity Recognition with Partially-O...	2020-12-15	Code
19	LogSumExpDecoder	86.42	No	-	-	Code
20	BoningKnife	86.41	No	BoningKnife: Joint Entity Mention Detection and ...	2021-07-20	-
21	BoningKnife	86.41	No	BoningKnife: Joint Entity Mention Detection and ...	2021-07-20	-
22	Second-best learning and decoding	85.82	No	Nested Named Entity Recognition via Second-best ...	2019-09-05	Code
23	Second-best learning and decoding + BERT + Flair	85.82	Yes	Nested Named Entity Recognition via Second-best ...	2019-09-05	Code
24	Second-best learning and decoding + BERT	84.97	Yes	Nested Named Entity Recognition via Second-best ...	2019-09-05	Code
25	seq2seq+BERT+Flair	84.4	No	Neural Architectures for Nested NER through Line...	2019-08-19	Code
26	seq2seq+BERT+Flair	84.4	No	Neural Architectures for Nested NER through Line...	2019-08-19	Code
27	MGNER	79.5	No	Multi-Grained Named Entity Recognition	2019-06-20	Code
28	MGNER	79.5	Yes	Multi-Grained Named Entity Recognition	2019-06-20	Code
29	Second-best learning and decoding	77.44	No	Nested Named Entity Recognition via Second-best ...	2019-09-05	Code
30	Neural segmental hypergraphs	75.1	No	Neural Segmental Hypergraphs for Overlapping Men...	2018-10-03	Code
31	Neural segmental hypergraphs	75.1	No	Neural Segmental Hypergraphs for Overlapping Men...	2018-10-03	Code
32	Neural transition-based model	73.3	No	A Neural Transition-based Model for Nested Menti...	2018-10-03	Code
33	Neural transition-based model	73.3	No	A Neural Transition-based Model for Nested Menti...	2018-10-03	Code