ROUGE

A metric that evaluates generated text by measuring n-gram overlap between a candidate output and one or more reference texts.

A metric for evaluating generated text by measuring alignment with reference text using word matches, stemming, and synonym matching.

A text generation metric that measures semantic similarity using contextual embeddings from BERT instead of exact token overlap.

An evaluation metric that measures whether a model's prediction exactly matches the expected reference answer, without allowing partial credit.

A metric that measures the proportion of correct predictions or outputs produced by a model or AI system out of all evaluated cases.