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. 2022 Oct 13;13:6048. doi: 10.1038/s41467-022-33877-7

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Fig. 5 — a The 10 digits and the structure of the neural nwtwork. OIU, optical linear unit, is a series of weightings between neurons in the software. b The activation functions normalized by a maximal input power of 15 mW. c The accuracy result obtained by the test. d The tested confusion matrix.