Some metrics have disappeared

[julioasotodv]

Comparing to v 1.2.2, metrics such as fmeasure, precision and recall are not available anymore in Keras 2.

Is there a good reason for this deletion? Perhaps one the backends do not support those metrics anymore?

[abramhindle]

Some fields of study use these "legacy" measures and they need them to compare against prior work. This removal is inconvenient and surprising.

[t-ae]

They had trouble.
If minibatch contains no positive samples, precision and recall return 0.
And mean of metrics gets lower values.

I don't know they'll be restored or not. Either way I recommend you to calculate them by yourself.

[julioasotodv]

Yes that's right. But still: monitoring these metrics while training is crucial to me.

So I guess that I will retriver them from the older version and use them as a separate module.

[t-ae]

Found declaration.
#5794 (comment)

[julioasotodv]

I see. Thank you so much.