Figure 12
Six scatter plots compare “Output” versus “Target” for Training, Validation, and Test in parts (a) and (b) with regression lines and R values. Two parts are labeled (a) and (b). Each set contains three scatter plots. In each graph, three types of data are presented: the open circle represents “Data,” the solid line represents “Fit,” and the dotted line represents “Y equals T.” The horizontal axis is labeled “Target” and ranges from 0 to 1 in increments of 0.2 in the left and right graphs in part (a) and in the left and middle graphs in part (b), while it ranges from 0.2 to 1 with an interval of 0.2 in the middle graph of part (a) and ranges from 0.4 to 1 with an interval of 0.2 in the right graph in part (b). Part (a): In the left graph, the vertical axis is labeled “Output approximately equals 0.97 times Target plus 0.018,” ranging from 0 to 1 with an interval of 0.2. The blue solid line extends diagonally from the bottom left to top right along with the dotted line, and the circular data points are scattered along this diagonal from bottom to top. The label at the bottom reads, “Training: R equals 0.98665.” In the middle graph, the vertical axis is labeled “Output approximately equals 1 times Target plus 0.0081,” ranging from 0.2 to 1 with an interval of 0.1. The green solid line extends diagonally from the bottom left to the top right along with the dotted line, and the circular data points are scattered along this diagonal from bottom to top and mostly clustered from the middle to the top side. The density of the data points is less than the left graph. The label at the bottom reads, “Validation: R equals 0.98626.” In the right graph, the vertical axis is labeled “Output approximately equals 1 times Target plus 0.018,” ranging from 0 to 1 with an interval of 0.2. The red solid line extends diagonally from the bottom left to top right along with the dotted line, and the circular data points are scattered along this diagonal from bottom to top and mostly clustered at the bottom and top ends. The density of the data points is less than the middle graph. The label at the bottom reads, “Test: R equals 0.98578.” Part (b): In the left graph, the vertical axis is labeled “Output approximately equals 0.99 times Target plus 0.0088,” ranging from 0 to 1 with an interval of 0.2. The blue solid line extends diagonally from the bottom left to top right along with the dotted line, and the circular data points are scattered along this diagonal from bottom to top. The label at the bottom reads, “Training: R equals 0.97147.” In the middle graph, the vertical axis is labeled “Output approximately equals 0.93 times Target plus 0.046,” ranging from 0 to 1 with an interval of 0.2. The green solid line extends diagonally from the bottom left to top right along with the dotted line, and the circular data points are scattered along this diagonal from bottom to top and mostly clustered near the middle side. The density of the data points is less than the left graph. The label at the bottom reads, “Validation: R equals 0.95275.” In the right graph, the vertical axis is labeled “Output approximately equals 0.85 times Target plus 0.093,” ranging from 0.3 to 1 with an interval of 0.1. The red solid line extends diagonally from the bottom left to top right, with the dotted line slightly deviating from the solid line, and the circular data points are scattered along this diagonal from bottom to top. The density of the data points is less than the middle graph. The label at the bottom reads, “Test: R equals 0.93744.” Note: All numerical data values are approximated.Regression plots: Comparison of the target and prediction: (a) LM network model and (b) SCG network model