README.md

---
datasets:
- tner/ttc
metrics:
- f1
- precision
- recall
pipeline_tag: token-classification
widget:
- text: Jacob Collier is a Grammy awarded artist from England.
  example_title: NER Example 1
base_model: roberta-large
model-index:
- name: tner/roberta-large-ttc
  results:
  - task:
      type: token-classification
      name: Token Classification
    dataset:
      name: tner/ttc
      type: tner/ttc
      args: tner/ttc
    metrics:
    - type: f1
      value: 0.8314534321624235
      name: F1
    - type: precision
      value: 0.8269230769230769
      name: Precision
    - type: recall
      value: 0.8360337005832793
      name: Recall
    - type: f1_macro
      value: 0.8317396497007042
      name: F1 (macro)
    - type: precision_macro
      value: 0.8296690551538254
      name: Precision (macro)
    - type: recall_macro
      value: 0.8340850231639706
      name: Recall (macro)
    - type: f1_entity_span
      value: 0.8739929100870126
      name: F1 (entity span)
    - type: precision_entity_span
      value: 0.8692307692307693
      name: Precision (entity span)
    - type: recall_entity_span
      value: 0.8788075178224238
      name: Recall (entity span)
---
# tner/roberta-large-ttc

This model is a fine-tuned version of [roberta-large](https://huggingface.co/roberta-large) on the 
[tner/ttc](https://huggingface.co/datasets/tner/ttc) dataset.
Model fine-tuning is done via [T-NER](https://github.com/asahi417/tner)'s hyper-parameter search (see the repository
for more detail). It achieves the following results on the test set:
- F1 (micro): 0.8314534321624235
- Precision (micro): 0.8269230769230769
- Recall (micro): 0.8360337005832793
- F1 (macro): 0.8317396497007042
- Precision (macro): 0.8296690551538254
- Recall (macro): 0.8340850231639706

The per-entity breakdown of the F1 score on the test set are below:
- location: 0.7817403708987161
- organization: 0.7737656595431097
- person: 0.939712918660287 

For F1 scores, the confidence interval is obtained by bootstrap as below:
- F1 (micro): 
    - 90%: [0.8153670265512099, 0.8476331336073506]
    - 95%: [0.8126974643551524, 0.8505459585794019] 
- F1 (macro): 
    - 90%: [0.8153670265512099, 0.8476331336073506]
    - 95%: [0.8126974643551524, 0.8505459585794019] 

Full evaluation can be found at [metric file of NER](https://huggingface.co/tner/roberta-large-ttc/raw/main/eval/metric.json) 
and [metric file of entity span](https://huggingface.co/tner/roberta-large-ttc/raw/main/eval/metric_span.json).

### Usage
This model can be used through the [tner library](https://github.com/asahi417/tner). Install the library via pip   
```shell
pip install tner
```
and activate model as below.
```python
from tner import TransformersNER
model = TransformersNER("tner/roberta-large-ttc")
model.predict(["Jacob Collier is a Grammy awarded English artist from London"])
```
It can be used via transformers library but it is not recommended as CRF layer is not supported at the moment.

### Training hyperparameters

The following hyperparameters were used during training:
 - dataset: ['tner/ttc']
 - dataset_split: train
 - dataset_name: None
 - local_dataset: None
 - model: roberta-large
 - crf: True
 - max_length: 128
 - epoch: 16
 - batch_size: 64
 - lr: 1e-05
 - random_seed: 42
 - gradient_accumulation_steps: 2
 - weight_decay: None
 - lr_warmup_step_ratio: 0.1
 - max_grad_norm: None

The full configuration can be found at [fine-tuning parameter file](https://huggingface.co/tner/roberta-large-ttc/raw/main/trainer_config.json).

### Reference
If you use any resource from T-NER, please consider to cite our [paper](https://aclanthology.org/2021.eacl-demos.7/).

```

@inproceedings{ushio-camacho-collados-2021-ner,
    title = "{T}-{NER}: An All-Round Python Library for Transformer-based Named Entity Recognition",
    author = "Ushio, Asahi  and
      Camacho-Collados, Jose",
    booktitle = "Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: System Demonstrations",
    month = apr,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2021.eacl-demos.7",
    doi = "10.18653/v1/2021.eacl-demos.7",
    pages = "53--62",
    abstract = "Language model (LM) pretraining has led to consistent improvements in many NLP downstream tasks, including named entity recognition (NER). In this paper, we present T-NER (Transformer-based Named Entity Recognition), a Python library for NER LM finetuning. In addition to its practical utility, T-NER facilitates the study and investigation of the cross-domain and cross-lingual generalization ability of LMs finetuned on NER. Our library also provides a web app where users can get model predictions interactively for arbitrary text, which facilitates qualitative model evaluation for non-expert programmers. We show the potential of the library by compiling nine public NER datasets into a unified format and evaluating the cross-domain and cross- lingual performance across the datasets. The results from our initial experiments show that in-domain performance is generally competitive across datasets. However, cross-domain generalization is challenging even with a large pretrained LM, which has nevertheless capacity to learn domain-specific features if fine- tuned on a combined dataset. To facilitate future research, we also release all our LM checkpoints via the Hugging Face model hub.",
}

```