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Table 2 Comparison of actual parameter values and the parameter estimation results using UKF, GA and NLSQ

From: Unscented Kalman filter with parameter identifiability analysis for the estimation of multiple parameters in kinetic models

Parameter name

Actual value

UKF

GA

Nonlinear LSQ

  

Mean

SD

Mean

SD

Mean

SD

v1.Ki1Fru

1.00

1.06

0.15

0.97

0.15

0.99

0.007

v2.Ki2Glc

1.00

1.21

0.22

1.00

0.09

0.99

0.001

v3.Ki3G6P

0.10

0.40

0.36

0.85

0.69

0.10

0.010

v6.Ki6Suc6P

0.07

0.13

0.05

0.94

0.72

1.35

2.135

v6.Ki6UDPGlc

1.40

3.56

1.29

0.97

0.74

1.29

0.305

v6.Vmax6r

0.20

0.21

0.23

0.86

0.56

3.27

4.932

v6.Km6UDP

0.30

1.00

1.23

0.90

0.55

0.89

1.747

v6.Km6Suc6P

0.10

1.32

1.56

0.88

0.62

0.78

1.775

v6.Ki6F6P

0.40

0.15

0.05

1.02

0.67

1.40

3.875

v11.Vmax11

1.00

0.31

0.18

1.04

0.29

0.99

0.001