Figure 8
The line graph is titled “Tardiness and Earliness Curve with D Q N.” It features a shared horizontal axis labeled “Episodes,” ranging from 0 to 90, with major tick marks at intervals of 15. There are two vertical axes: the left vertical axis, labeled “Tardiness” in blue text, ranges from 0 to 35000 with major tick marks at 5000 intervals, and the right vertical axis, labeled “Earliness” in red text, ranges from 1400 to 2600 with major tick marks at 200 intervals. Two distinct lines are plotted on the graph. The “Tardiness” curve, depicted in blue, starts at approximately 32500, peaks around 37500 near Episode 5, then generally decreases with fluctuations, reaching around 17500 by Episode 15. It then sharply rises to approximately 32500 by Episode 25. Following this, the curve fluctuates and ends at 100 by Episode 95. The “Earliness” curve, depicted in red, starts at approximately 2450, fluctuates around 2400 to 2700 until about Episode 20, where it sharply decreases to around 1400 to 1500 by Episode 25. It remains stable at this lower level until around Episode 40, then rises to around 1800 to 1900 by Episode 45, remains stable until Episode 55, and then drops again to around 1600 to 1700. After Episode 70, it rises to approximately 1900 and remains relatively stable at that level until the end of the plot. A legend is positioned in the top-right corner of the plot, clearly labeling the blue line as “Tardiness” and the red line as “Earliness.” Note: All the numerical data values are estimated.Earliness and tardiness curves. Source: Authors’ own work