Gain evaluation method and device

The invention provides a gain evaluation method and device. The method comprises the steps of obtaining a target variable result based on an intervention action label of a sample, target behavior response output, a tendency score of intervention on the sample and a correction term; sorting the target variable results to obtain a sorting result; judging the effect of the intervention action based on the sorting result; wherein the algorithm for obtaining the target variable result based on the intervention action label of the sample, the target behavior response output, the tendency score of the sample subjected to intervention and the correction value is # imgabs0 #, Wi is the intervention action label, Yi is the target behavior response output, p is the tendency score of the sample subjected to intervention, r is a correction term, and # imgabs1 # is the target variable result. The problems that the efficiency of an adopted evaluation algorithm is not high and the evaluation and speculation result is not acc