BioELECTRA

Recent advancements in pretraining strategies in NLP have shown a significant improvement in the performance of models on various text mining tasks. In this paper, we introduce BioELECTRA, a biomedical domain-specific language encoder model that adapts ELECTRA (Clark et al., 2020) for the Biomedical domain. BioELECTRA outperforms the previous models and achieves state of the art (SOTA) on all the 13 datasets in BLURB benchmark and on all the 4 Clinical datasets from BLUE Benchmark across 7 NLP tasks. BioELECTRA pretrained on PubMed and PMC full text articles performs very well on Clinical datasets as well. BioELECTRA achieves new SOTA 86.34%(1.39% accuracy improvement) on MedNLI and 64% (2.98% accuracy improvement) on PubMedQA dataset.

For a detailed description and experimental results, please refer to our paper BioELECTRA:Pretrained Biomedical text Encoder using Discriminators.

Models

Code

Model pretrainig and finetuning is done using the code opensourced by electra authors. Code used for BioELECTRA model training and finetuning - here

Pretraining

PubMed data download script for pretraining is used from NVIDIA/DeepLearningExamples

Code for Downloading and Preprocessing PubMed Abstracts here

Finetuning

All the experiments are done using gcloud TPU-V3-8 instance and n2-highmem-2 (2 vCPUs, 16 GB memory).

This research was supported by Google’s TensorFlow Research Cloud (TFRC).