The quality characteristics of products will deviate from the target value under the influence of noise, and different degrees of deviation will cause different degrees of losses to users. Let the measured value of product quality characteristics be y, the target value (or central value) of quality characteristics be m, and the loss when the measured value deviates from the target value is expressed by L(y), then L(y) is a function of deviation (Y-m), which is called loss function. The loss function L(y) is expanded into Taylor series near m.
When y=m, it will obviously not bring losses to users, so the first term L(m)=0. Since L(Y) has a minimum value when Y=M, the derivative is obtained.
Model essay on deeds of advanced safety teams 1 1. Work summary for the whole year of 2020.
2020 is an extraordinary year. In the c