Also known as: Character N-gram F-score (ChrF) Β· ChrF Β· Character N-gram F-score ChrF Β· Character N gram F score [ChrF]
Character N-gram F-score, or ChrF, is an evaluation metric for machine translation and text generation. It measures overlap between character-level n-grams in generated text and reference text, making it useful for languages and tasks where word-level tokenization is less reliable.
A metric to evaluate machine translation models. Character N-gram F-score determines the degree to which N-grams in reference text overlap the N-grams in an ML model's generated text. Character N-gram F-score is similar to metrics in the ROUGE and BLEU families, except that: - Character N-gram F-score operates on character N-grams. - ROUGE and BLEU operate on word N-grams or tokens.