Definitions by 0x_n
sigmoid
Sigmoid curve is a mathematical function which transforms every input into an output within the range of 0 to 1. Its graphical representation is an elongated letter S. It is employed by the machine learning system whenever it makes the prediction of how probable an event is.
The machine learning algorithm applied a sigmoid function in order to transform its complicated score into a single value, for example 0.87, which showed that the algorithm was very confident about the positive result.