ml-recall

#f-score

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chrF combines character n-gram precision chrP and recall chrR as $\mathrm{chrF}_\beta = (1 + \beta^2)\,\frac{\mathrm{chrP} \cdot \mathrm{chrR}}{\beta^2\,\mathrm{chrP} + \mathrm{chrR}}$ , usually with $\beta = 2$ . A system has chrP = 0.8 and chrR = 0.6. What is its chrF2?

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