[3] Logistic Regression Principles

Logistic regression uses the sigmoid function as an activation function and the logability function as a cost function. Activation function Odds ratio: the probability that a particular event will occur. $$\frac{P}{(1 - P)}$$ Where P is the probability that it is a positive sample, which refers to the probability that the target to be predicted will occur. The log function is usually defined by ..

2020.12.31