Regularized Least Squares Recursive Algorithm with Forgetting Factor for Identifying Parameters in the Grinding Process

Table 3

The average and maximum relative error between the estimated value and the true value of system output.

Algorithm	Average relative error (%)	Maximum relative error (%)
LSM [30]	14.72	201.5
LSRAFF [30]	11.86	180.0
RLSM [31]	9.14	129.3
RLSRAFF	5.93	74.79