Patra, G.K., Rajaram, S.K., Boddapati, V.N., Kuraku, C. and Gollangi, H.K. 2022. Advancing Digital Payment Systems: Combining AI, Big Data, and Biometric Authentication for Enhanced Security. International Journal of Engineering and Computer Science. 11, 08 (Aug. 2022), 25618–25631. DOI:https://doi.org/10.18535/ijecs/v11i08.4698.