Token Classification
Transformers
PyTorch
English
roberta
feature-extraction
Inference Endpoints
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---
datasets:
- tner/bc5cdr
- tner/bionlp2004
- tner/btc
- tner/conll2003
- tner/fin
- tner/mit_movie_trivia
- tner/mit_restaurant
- tner/multinerd
- tner/ontonotes5
- tner/tweebank_ner
- tner/tweetner7
- tner/wikineural
- tner/wnut2017
language:
- en
metrics:
- accuracy
- f1
---
# RoBERTa Span Detection 
This model is a fine-tuned model of [roberta-large](https://huggingface.co/roberta-large) after being trained on a **mixture of NER datasets**.

Basically, this model has learn can detect NER spans (with <u>no differenciation on classes</u>). Labels use the IBO format and are: 
- 'B-TAG': beginning token of span
- 'I-TAG': inside token of span
- 'O': token not a span

# Evaluation results

| Data | Accuracy |
|:---:|:---------:|
| validation | 0.964 |