Design of Drug Sales Forecasting Model Using Particle Swarm Optimization Neural Networks Model

Table 2

Comparison of evaluation indexes of different methods.

Method	Mean square error	Mean absolute error	Average absolute percentage error	Mean square percentage error
Traditional BPNN	18.692	3.217	0.0814	0.0169
AdaBoost-ELM	13.417	2.136	0.0689	0.0132
Support vector machine	14.685	2.987	0.0897	0.0187
PSONN in this paper	12.374	2.054	0.0657	0.0124