Papers with BIO tagging scheme
Masked Conditional Random Fields for Sequence Labeling (2021.naacl-main)
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| Challenge: | Conditional Random Fields (CRF) based neural models are among the most performant for sequence labeling problems, but they can sometimes generate illegal sequences of tags. |
| Approach: | They propose a conditional random field-based model that imposes restrictions on candidate paths during both training and decoding phases. |
| Outcome: | The proposed method improves on existing CRF models with near zero additional cost. |