Harmonic Mean is the inverse of the inverse sum of arithmetic means, weighted.

It is near the lower of the two values, instead of the middle: meaning that in incentives both things being meaned to be higher. Hence why we use F measure for things.

Harmonic Mean is the inverse of the inverse sum of arithmetic means, weighted.

It is near the lower of the two values, instead of the middle: meaning that in incentives both things being meaned to be higher. Hence why we use F measure for things.