PU-NA-BERT

We used Electronic medical records from public use datasets provided by Yidu Cloud to obtain the distant dataset by dista。nt supervision. For the obtained distant dataset, to enhance the reliability of the dataset, we used PU learning for denoising to reduce the negative impact of incorrectly labelled negative samples or unlabeled samples on the model. Finally, cancer information extraction was performed using negative sampling and pre-trained modelsWe used Electronic medical records from public use datasets provided by Yidu Cloud to obtain the distant dataset by distant supervision. For the obtained distant dataset, to enhance the reliability of the dataset, we used PU learning for denoising to reduce the negative impact of incorrectly labelled negative samples or unlabeled samples on the model. Finally, cancer information extraction was performed using negative sampling and pre-trained models