This research paper introduces a new language representation model called BERT (Bidirectional Encoder Representations from Transformers). BERT's key innovation is its ability to learn deep bidirectional representations from unlabeled text, enabling it to outperform existing language models on a wide range of natural language processing tasks, including question answering, language inference, and sentiment analysis. The authors demonstrate that BERT achieves state-of-the-art results on eleven NLP benchmarks, outperforming previous models by substantial margins. They also perform ablation studies to investigate the contributions of different aspects of BERT's architecture and training process.

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