Forecasting Ionospheric TEC Changes Associated with the December 2019 and June 2020 Solar Eclipses: A Comparative Analysis of OKSM, FFNN, and DeepAR Models

Table 5

Performance assessment using linear regression (2020).

Model	Intercept	Slope	Pearson’s R
OKSM	0.2973 ± 0.16	0.9773 ± 0.01	0.97695	0.95444
FFNN	0.6667 ± 0.14	0.9468 ± 0.01	0.98057	0.96151
DeepAR	−0.2548 ± 0.22	1.0153 ± 0.01	0.9721	0.94498