Table 1.

Absolute RMS-deviation and coefficient of determination for estimated oxygen saturation.

Method	Training data	Evaluation data	$N$	Abs RMS	$R^2$
ANN	No noise	No noise	88,009	3.0	0.990
ANN	Noise	No noise	88,009	3.9	0.984
Nonlin. opt.	N/A	No noise	88,009	6.2	0.956
ANN	No noise	Noise	85,726	7.4	0.936
ANN	Noise	Noise	85,726	5.1	0.969
Nonlin. opt.	N/A	Noise	85,726	12	0.844