Why called `ef`?

[gitfourteen]

Really feel bothering to call a critical parameter something like ef without knowing its literal meaning or its acronym.

[gitfourteen]

Finally, find someone do a decent patch-work: EF stands for Enter Factor. Relieved.

[yurymalkov]

Hi @gitfourteen, Sorry for a late reply. ef initially meant "ensure factor", which meant this parameter ensures the high recall, but was grammatically incorrect.