Forecasting Nonlinear Chaotic Time Series with Function Expression Method Based on an Improved Genetic-Simulated Annealing Algorithm

Table 2

Fitness values for noisy time series with different SNR.

	Fitness value
Chaotic system	SNR value (dB)
	50	40	35	30	25	20	15	10
Quadratic map	0.9908	0.9012	0.8452	0.8023	0.7473	0.6115	0.4396	0.2618
Rossler map	0.9862	0.8443	0.7629	0.7119	0.6592	0.5361	0.3587	0.2130