Concept
F1
F1 is the F1 score, the harmonic mean of precision and recall. It collapses two competing error types into a single number: precision (of the things you flagged, how many were correct) and recall (of the things that were actually correct, how many you caught).
The rest of “F1” is a premium feature: every concept in the library gets a precise, practitioner-focused write-up like this one, cross-linked straight from the paper summaries that use it.
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