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AI & Machine Learning · Advanced

BERTScore

A text-similarity metric that compares contextual embeddings of generated and reference text.

Definition

BERTScore matches tokens using embedding similarity from a pretrained transformer, so it credits paraphrases that n-gram metrics miss. It reports precision, recall and F1 and correlates better with human judgment for many generation tasks.

Exam tip

Choose BERTScore when semantic similarity, not exact wording, matters.

Related terms