Table 4 The estimated parameters of two simulations for the PSO algorithm
From: A modified particle swarm optimization algorithm for parameter estimation of a biological system
True parameters | α i | g i1 | g i2 | g i3 | g i4 | β i | h i1 | h i2 | h i3 | h i4 | RMSE |
|---|---|---|---|---|---|---|---|---|---|---|---|
PSO noise free measurement | 0.4040 | ||||||||||
x 1 | 20.3569 | 0 | 0 | −0.4444 | 0 | 10.3510 | 0.8602 | 0 | 0 | 0 | |
x 2 | 8.3541 | 0.858 | 0 | 0 | 0 | 3.3464 | 0 | 1.1024 | 0 | 0 | |
x 3 | 3.3513 | 0 | 1.1049 | 0 | 0 | 3.3478 | 0 | 0 | 0.8554 | 0.5437 | |
x 4 | 2.3560 | 0.8419 | 0 | 0 | 0 | 6.3490 | 0 | 0 | 0 | 1.148 | |
PSO noisy measurement with SNR 20 | 0.5160 | ||||||||||
x 1 | 16.0762 | 0 | 0 | −0.3411 | 0 | 7.4571 | 0.9537 | 0 | 0 | 0 | |
x 2 | 8.4461 | 1.9448 | 0 | 0 | 0 | 3.4396 | 0 | 1.1908 | 0 | 0 | |
x 3 | 1.453 | 0 | 1.1971 | 0 | 0 | 3.4558 | 0 | 0 | 0.9496 | 0.6451 | |
x 4 | 2.4434 | 0.9482 | 0 | 0 | 0 | 8.4386 | 0 | 0 | 0 | 1.2565 | |