bert model: https://huggingface.co/google-bert/bert-base-uncased/tree/main
aclImdb_v1: https://huggingface.co/datasets/NolanChai/aclImdb_v1/tree/main
huggingface: https://huggingface.co/ymh1981/bert-imdb/tree/main

The best validation accuracy so far is 93.6%