| Optimizing Bi-Encoder for Named Entity Recognition via Contrastive Learning | ✓ Link | 89.5 | BINDER | 2022-08-30 |
| Fusing Heterogeneous Factors with Triaffine Mechanism for Nested Named Entity Recognition | ✓ Link | 88.83 | Triaffine + ALBERT | 2021-10-14 |
| Parallel Instance Query Network for Named Entity Recognition | ✓ Link | 87.42 | PIQN | 2022-03-20 |
| An Embarrassingly Easy but Strong Baseline for Nested Named Entity Recognition | ✓ Link | 87.42 | CNN-NER | 2022-08-09 |
| Boundary Smoothing for Named Entity Recognition | ✓ Link | 87.15 | Baseline + BS | 2022-04-26 |
| A Sequence-to-Set Network for Nested Named Entity Recognition | ✓ Link | 87.05 | Sequence-to-Set | 2021-05-19 |
| Fusing Heterogeneous Factors with Triaffine Mechanism for Nested Named Entity Recognition | ✓ Link | 86.82 | Triaffine + BERT | 2021-10-14 |
| Unified Named Entity Recognition as Word-Word Relation Classification | ✓ Link | 86.79 | W2NER | 2021-12-19 |
| Locate and Label: A Two-stage Identifier for Nested Named Entity Recognition | ✓ Link | 86.67 | Locate and Label | 2021-05-14 |
| To be Continuous, or to be Discrete, Those are Bits of Questions | ✓ Link | 85.90 | Hashing | 2024-06-12 |
| BoningKnife: Joint Entity Mention Detection and Typing for Nested NER via prior Boundary Knowledge | | 85.46 | BoningKnife | 2021-07-20 |
| Nested Named Entity Recognition with Partially-Observed TreeCRFs | ✓ Link | 85.4 | PO-TreeCRFs | 2020-12-15 |
| Nested Named Entity Recognition via Explicitly Excluding the Influence of the Best Path | ✓ Link | 84.93 | LogSumExpDecoder | 2021-08-01 |
| A Unified Generative Framework for Various NER Subtasks | ✓ Link | 84.74 | BARTNER | 2021-06-02 |
| Nested Named Entity Recognition via Second-best Sequence Learning and Decoding | ✓ Link | 84.34 | Second-best learning and decoding + BERT + Flair | 2019-09-05 |
| Neural Architectures for Nested NER through Linearization | ✓ Link | 84.33 | seq2seq+BERT+Flair | 2019-08-19 |
| Nested Named Entity Recognition via Second-best Sequence Learning and Decoding | ✓ Link | 83.99 | Second-best learning and decoding + BERT | 2019-09-05 |
| Merge and Label: A novel neural network architecture for nested NER | ✓ Link | 82.4 | Merge and Label | 2019-06-30 |
| Multi-Grained Named Entity Recognition | ✓ Link | 78.2 | MGNER | 2019-06-20 |
| Nested Named Entity Recognition via Second-best Sequence Learning and Decoding | ✓ Link | 76.83 | Second-best learning and decoding | 2019-09-05 |
| Sequence-to-Nuggets: Nested Entity Mention Detection via Anchor-Region Networks | ✓ Link | 75.9 | Anchor-Region Networks | 2019-06-10 |
| Bipartite Flat-Graph Network for Nested Named Entity Recognition | ✓ Link | 75.1 | BiFlaG | 2020-05-01 |
| Neural Segmental Hypergraphs for Overlapping Mention Recognition | ✓ Link | 74.5 | Neural segmental hypergraphs | 2018-10-03 |
| A Neural Transition-based Model for Nested Mention Recognition | ✓ Link | 73.0 | neural transition-based model | 2018-10-03 |
| A Neural Layered Model for Nested Named Entity Recognition | ✓ Link | 72.2 | Neural layered model | 2018-06-01 |