# Does “Log loss” refer to Logarithmic loss or Logistic loss?

I know I've seen it both ways, so is there a difference between the two, and which one is more commonly referred to?

• What is the context in which this phrase was used? Where did you see this? – gung - Reinstate Monica Jul 14 '16 at 4:39

Logarithmic loss = Logistic loss = log loss = $-y_i\log(p_i) - (1 -y_i) \log(1 -p_i)$