Figure 30. A multiclass roc curve (https://www.analyticsvidhya.com/blog/2020/06/auc-roc-curve-machine-learning/)

From

Predicting Stock Investments Based on Sentiment and Historical Price Data

I. O. Olawale, J. Iworiso, I. A. Amaunam

International Journal of Data Envelopment Analysis and *Operations Research*. 2023, 4(1), 1-32