Figure 3
The diagram is titled “Confusion Matrix” centered at the top. The vertical axis on the left is labeled “True label” with two categories from top to bottom: “Normal” and “Anomaly”. The horizontal axis at the bottom is labeled “Predicted label” with two categories from left to right: “Normal” and “Anomaly”. The top-left cell contains the number “4999”. The top-right cell contains the number “1”. The bottom-left cell contains the number “91”. The bottom-right cell contains the number “409”. Each cell is shaded in varying intensities of blue. To the right of the matrix, a vertical color scale bar shows a numerical gradient beginning near “0” at the bottom and increasing upward to values above “4000”, with the shading transitioning from light blue at the bottom to dark blue at the top.Confusion matrix for meta-classifier model. Source: Authors’ own work