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Table 1.

Summary of the percentage of absorption lines with a discrepancy between true physical parameters and CNN predictions exceeding σ90 (90% percentile derived from simulated test data).

Sno. Lines Data Δb > σ90b[median N] ΔN > σ90N[median b] Δb > σ90b & ΔN > σ90N
S/N < 20 S/N > 20 S/N < 20 S/N > 20 S/N < 20 S/N > 20
1 Single D16 12.8% [13.35] 14.8% [12.70] 9.4% [32.50] 2.4% [34.60] 5.0% 0.3%
2 Single D16 mock 6.2% [13.24] 7.5% [12.77] 2.8% [28.70] 0.5% [18.80] 0.4% 0.0%
3 Single VIPER 14.1% [13.22] 13.0% [12.74] 7.6% [29.17] 2.7% [34.71] 3.5% 0.4%
4 Single VIPER mock 6.6% [13.16] 5.2% [12.64] 5.2% [24.32] 0.0% 0.0% 0.0%
5 Double C1 D16 33.8% [13.34] 25.0% [12.84] 11.0% [35.90] 5.3% [29.80] 4.4% 2.6%
6 Double C1 D16 mock 8.0% [13.16] 8.0% [12.82] 4.0% [24.80] 0.0% 0.0% 0.0%
7 Double C1 VIPER 25.5% [13.23] 23.5% [12.76] 11.5% [25.20] 8.6% [27.34] 4.5% 4.9%
8 Double C1 VIPER mock 11.5% [13.28] 9.3% [12.55] 4.1% [26.21] 2.7% [38.12] 0.0% 1.3%
9 Double C2 D16 19.9% [13.32] 26.3% [12.78] 14.0% [32.70] 6.6% [38.40] 5.1% 3.9%
10 Double C2 D16 mock 5.6% [13.18] 4.0% [12.71] 7.2% [22.50] 1.3% [36.40] 0.0% 0.0%
11 Double C2 VIPER 26.1% [13.08] 29.6% [12.54] 12.7% [30.49] 11.1% [27.78] 3.8% 4.9%
12 Double C2 VIPER mock 15.5% [12.98] 16.0% [12.99] 5.4% [27.36] 4.0% [20.10] 0.7% 2.7%

Notes. σ90b and σ90N for single line is taken from Fig. 8 and for double line from Fig. 10. Single-line data are shown in rows 1–4, double-line component 1 (C1) in rows 5–8, and double-line component 2 (C2) in rows 9–12.

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