Table 2 Sensitivity of the training running time and validation accuracy to the number of PCs used, for the case of the transverse modulus E22.

From: Predictions of the mechanical properties of unidirectional fibre composites by supervised machine learning

Number of PCs

Training Runtime (s)

Mean r2

10

81

99.1

20

139

99.44

50

338

99.45

70

493

99.47

100

697

99.48

200

1,155

99.5

400

1,183

99.5

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