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. 2021 Aug 23;21(16):5657. doi: 10.3390/s21165657

Figure 2.

Figure 2

Visual diagram of XAI techniques used in this study. (a) GradCAM: gradients to the last convolution are computed and weighted sum is calculated. (b) Integrated Gradients: Sum/integral based on interpolations of the image. (c) Vanilla Gradients: Direct gradient computation. (d) Smooth Gradients: gradient computation on noisy versions of the image. (e) RISE: weighted sum of perturbation masks. (f) Squaregrid: perturbations using square grid divisions. (g) LIME: perturbations using superpixels computed via SLIC.