Table 2 Accuracies for all objects on the full data set before and after retraining.

From: Spatial localisation and sensing in two dimensions via metasurfaces

Object id

Object

Accuracy before re-training (%)

Accuracy after re-training (%)

1

Large aluminium

98.5

99.4

2

Large brass

98.7

99.7

3

Large steel

99.2

99.2

4

Small aluminium

94.5

99.5

5

Small brass

90.0

98.7

6

Small steel

88.0

98.2

7

Ferrite

99.5

99.5

8

SS-bolt

98.9

99.7