Why the CoNLL 2003 NER dataset isn't annotated by BIOES tags as the paper described?

ZhixiuYe / HSCRF-pytorch

ACL 2018: Hybrid semi-Markov CRF for Neural Sequence Labeling (http://aclweb.org/anthology/P18-2038)

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Why the CoNLL 2003 NER dataset isn't annotated by BIOES tags as the paper described? #21

Open Nicozwy opened 5 years ago

Nicozwy commented 5 years ago

Hi, Thank you for your excellent work. As you described in the paper, you have adopted BIOES tagging scheme in the experiment. However, it seems that the CoNLL 2003 NER dataset is annotated by BIO, which makes me confused.

ZhixiuYe commented 5 years ago

These two kinds of tagging schemes are equivalent.

Nicozwy commented 5 years ago

These two kinds of tagging schemes are equivalent.

OK, thank you!