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Table 7 Optimal parameters achieved by COWOA and other meta-heuristic algorithms for simulation instance4

From: Adaptive IIR model identification using chaotic opposition-based whale optimization algorithm

Parameter

Actual value

Estimated value

 
  

WOA

COWOA

a0

1.00

0.9174

0.9126

a1

−0.90

−0.5264

−0.9126

a2

0.81

0.4543

0.6294

b1

−0.04

−0.0010

−0.0560

b2

−0.2775

−0.2797

−0.0108

b3

0.2101

0 .0030

0.0113