Addressing Small and Imbalanced Medical Image Datasets Using Generative Models: A Comparative Study of DDPM and PGGANs with Random and Greedy K Sampling. - Iman Khazrak; Shakhnoza Takhirova; Mostafa M. Rezaee; Mehrdad Yadollahi; Robert C. Green II; Shuteng Niu (CoRR, 2024)