sd-smallmol-roles

Model description

This model is a RoBERTa base model that was further trained using a masked language modeling task on a compendium of english scientific textual examples from the life sciences using the BioLang dataset. It has then been fine-tuned for token classification on the SourceData sd-nlp dataset with the SMALL_MOL_ROLES configuration to perform pure context-dependent semantic role classification of bioentities.

Intended uses & limitations

How to use

The intended use of this model is to infer the semantic role of small molecules with regard to the causal hypotheses tested in experiments reported in scientific papers.

To have a quick check of the model:

from transformers import pipeline, RobertaTokenizerFast, RobertaForTokenClassification
example = """<s>The <mask> overexpression in cells caused an increase in <mask> expression.</s>"""
tokenizer = RobertaTokenizerFast.from_pretrained('roberta-base', max_len=512)
model = RobertaForTokenClassification.from_pretrained('EMBO/sd-smallmol-roles')
ner = pipeline('ner', model, tokenizer=tokenizer)
res = ner(example)
for r in res:
    print(r['word'], r['entity'])

Limitations and bias

The model must be used with the roberta-base tokenizer.

Training data

The model was trained for token classification using the EMBO/sd-nlp dataset which includes manually annotated examples.

Training procedure

The training was run on a NVIDIA DGX Station with 4XTesla V100 GPUs.

Training code is available at https://github.com/source-data/soda-roberta

Model fine tuned: EMBL/bio-lm
Tokenizer vocab size: 50265
Training data: EMBO/sd-nlp
Dataset configuration: SMALL_MOL_ROLES
Training with 48771 examples.
Evaluating on 13801 examples.
Training on 15 features: O, I-CONTROLLED_VAR, B-CONTROLLED_VAR, I-MEASURED_VAR, B-MEASURED_VAR
Epochs: 0.33
per_device_train_batch_size: 16
per_device_eval_batch_size: 16
learning_rate: 0.0001
weight_decay: 0.0
adam_beta1: 0.9
adam_beta2: 0.999
adam_epsilon: 1e-08
max_grad_norm: 1.0

Eval results

On 7178 example of test set with sklearn.metrics:

                precision    recall  f1-score   support

CONTROLLED_VAR       0.76      0.90      0.83      2946
  MEASURED_VAR       0.60      0.71      0.65       852

     micro avg       0.73      0.86      0.79      3798
     macro avg       0.68      0.80      0.74      3798
  weighted avg       0.73      0.86      0.79      3798

{'test_loss': 0.011743436567485332, 'test_accuracy_score': 0.9951612532624371, 'test_precision': 0.7261345852895149, 'test_recall': 0.8551869404949973, 'test_f1': 0.7853947527505744, 'test_runtime': 58.0378, 'test_samples_per_second': 123.678, 'test_steps_per_second': 1.947}

EMBO
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sd-smallmol-roles