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Table 2 Definitions of the actions available to the agent

From: Deep Q-network to produce polarization-independent perfect solar absorbers: a statistical report

Action no.

Action definition

0

Decrease the spacing between cylinders by 10 nm.

1

Increase the spacing between cylinders by 10 nm.

2

Decrease the height of the cylinder by 10 nm.

3

Increase the height of the cylinder by 10 nm.

4

Decrease the diameter of the cylinders by 10 nm.

5

Increase the diameter of the cylinders by 10 nm.

6

Decrease the thickness of film #1 by 10 nm.

7

Increase the thickness of film #1 by 10 nm.

8

Decrease the thickness of film #2 by 10 nm.

9

Increase the thickness of film #2 by 10 nm.

10

Decrease the material ID of cylinders by 1.

11

Increase the material ID of cylinders by 1.

12

Decrease the material ID of the film #1 by 1.

13

Increase the material ID of the film #1 by 1.

14

Decrease the material ID of the film #2 by 1.

15

Increase the material ID of the film #2 by 1.