Bibliography (5):

1. BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding

2. RoBERTa: A Robustly Optimized BERT Pretraining Approach

3. Finding Structure In Time

4. GLUE: A Multi-Task Benchmark and Analysis Platform for Natural Language Understanding

5. Wikipedia Bibliography:

   1. https://en.wikipedia.org/wiki/F-score  :

      https://en.wikipedia.org/wiki/F-score