It's a operate that measures the efficiency of a Equipment Finding out design for given details. Value Perform quantifies the error involving predicted values and anticipated values and presents it in the shape of an individual real range. Dependant upon the difficulty Cost Purpose could be formed in numerous techniques. The purpose of Charge Perform should be to be both:
Minimized - then returned value is frequently referred to as Price tag, reduction or mistake. The purpose would be to locate the values of model parameters for which Charge Perform return as compact variety as possible.
Maximized - then the cost function worth it yields is named a reward. The goal is to seek out values of model parameters for which returned variety is as large as is possible.