Table 2.

Grouping of the studied papers into machine learning and deep learning.

Method	References
Machine learning	[18,21,22,24,25,26,27,28,29,30,33,34,35,36,37,40,41,42,43,45,48,49]
Deep learning	[22,25,26,30,38,39,41,44,45,46,47]