What mean ROC chart

Hello, please, can you describe me,what mean this ROC chart - line for class 2. I have confusion matrix for this classification also.

Answer 1

[KALYAN ACHARJYA]

ROC Chart means receiver operating characteristics, it is a well-known and important curve for analyzing the performance of any develop algorithm, especially in medical image analysis and biometric identification. The curve between specificity (False Positive rate) vs sensitivity (True Positive Rate)

I would suggest you follow the following paper (Best paper to understand ROC Curve)

http://people.inf.elte.hu/kiss/12dwhdm/roc.pdf